From: Andre Noll <maan@systemlinux.org>
Date: Thu, 13 Feb 2014 07:36:03 +0000 (+0100)
Subject: Merge branch 'refs/heads/t/clang_warning_fixes'
X-Git-Tag: v0.5.2~12
X-Git-Url: http://git.tuebingen.mpg.de/?a=commitdiff_plain;h=e6e3a404091110ac770f65dad64e194f5900cd27;hp=1b9e28744f6b613e878a1875e93a4b7d81a4764e;p=paraslash.git

Merge branch 'refs/heads/t/clang_warning_fixes'

Was cooking since 2014-01-14.

	1b9e28 command.c: Silence clang warning.
	994e72 udp_recv: Fix clang warning.
	c853e7 aac_afh: Fix clang warning.
---

diff --git a/INSTALL b/INSTALL
index 0f4c18b6..9917afb6 100644
--- a/INSTALL
+++ b/INSTALL
@@ -8,6 +8,23 @@ From git:
 
 	./autogen.sh && sudo make install
 
+Example for cross-compiling:
+
+	export CROSS_COMPILE='armv6j-hardfloat-linux-gnueabi-'
+	export PATH="/usr/cross/arm/bin:$PATH"
+	export CC=${CROSS_COMPILE}gcc
+
+	export LDFLAGS='
+		-L/usr/sysroot/arm/lib
+		-L/usr/sysroot/arm/usr/lib
+		-L/usr/sysroot/arm/usr/lib/glibc/lib
+		-L/usr/sysroot/arm/usr/local/ssl/lib
+	'
+	autoconf
+	autoheader
+	./configure --host=arm-linux-gnueabi --prefix /usr/sysroot/arm/usr/local
+	make CROSS_COMPILE=$CROSS_COMPILE
+
 For details see the user manual:
 
 	http://paraslash.systemlinux.org/manual.html
diff --git a/Makefile.in b/Makefile.in
index cf8b9f71..19679923 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,337 +1,65 @@
 prefix := @prefix@
 exec_prefix := @exec_prefix@
 
+# These two use prefix and exec_prefix
 BINDIR := @bindir@
-VARDIR := /var/paraslash
-PKGDATADIR := @datarootdir@/@PACKAGE_NAME@
-MANDIR := @datarootdir@/man/man1
+datarootdir := @datarootdir@
+
+PACKAGE_TARNAME := @PACKAGE_TARNAME@
 PACKAGE_VERSION := @PACKAGE_VERSION@
-PACKAGE_STRING := @PACKAGE_STRING@
-install_sh := @install_sh@
-executables := $(addprefix para_, @executables@)
-ggo_descriptions_declared := @ggo_descriptions_declared@
 
+INSTALL := @install@
 GENGETOPT := @gengetopt@
 HELP2MAN := @help2man@
-MKDIR_P := mkdir -p
-
-build_date := $(shell date)
-uname_s := $(shell uname -s 2>/dev/null || echo "UNKNOWN_OS")
-uname_rs := $(shell uname -rs)
-cc_version := $(shell $(CC) --version | head -n 1)
-
-GIT_VERSION := $(shell ./GIT-VERSION-GEN git-version.h)
-
-m4_ggo_dir := m4/gengetopt
-test_dir := t
-ifeq ("$(origin O)", "command line")
-	build_dir := $(O)
-else
-	build_dir := build
-endif
-ggo_dir := $(build_dir)/ggo
-object_dir := $(build_dir)/objects
-dep_dir := $(build_dir)/deps
-man_dir := $(build_dir)/man/man1
-cmdline_dir := $(build_dir)/cmdline
-m4depdir := $(build_dir)/m4deps
-
-DEBUG_CPPFLAGS += -g -Wunused -Wundef -W
-DEBUG_CPPFLAGS += -Wredundant-decls
-DEBUG_CPPFLAGS += -Wall -Wno-sign-compare -Wno-unknown-pragmas
-DEBUG_CPPFLAGS += -Wformat-security
-DEBUG_CPPFLAGS += -Wmissing-format-attribute
-# produces false positives
-# DEBUG_CPPFLAGS += -Wunreachable-code
-# DEBUG_CPPFLAGS += -Wwrite-strings
-
-# invalid option for gcc-3.3.3
-# DEBUG_CPPFLAGS += -Wextra
-# DEBUG_CPPFLAGS += -Wold-style-definition
-# DEBUG_CPPFLAGS += -Wdeclaration-after-statement
-# DEBUG_CPPFLAGS += -Wsuggest-attribute=const
-
-# many warnings about trivial stuff
-# CPPFLAGS += -Wconversion
-
-ifeq ($(uname_s),Linux)
-	CPPFLAGS += -fdata-sections -ffunction-sections
-	LDFLAGS += -Wl,--gc-sections
-	CPPFLAGS += -Wstrict-prototypes
-	CPPFLAGS += -Wshadow
-	# causes warnings on *BSD for the feature test macros
-	CPPFLAGS += -Wunused-macros
-endif
-CPPFLAGS += -Os
-CPPFLAGS += -Wuninitialized
-CPPFLAGS += -Wchar-subscripts
-CPPFLAGS += -DBINDIR='"$(BINDIR)"'
-CPPFLAGS += -DBUILD_DATE='"$(build_date)"'
-CPPFLAGS += -DUNAME_RS='"$(uname_rs)"'
-CPPFLAGS += -DCC_VERSION='"$(cc_version)"'
-CPPFLAGS += -Werror-implicit-function-declaration
-CPPFLAGS += -Wmissing-noreturn
-CPPFLAGS += -Wbad-function-cast
-CPPFLAGS += -fno-strict-aliasing
-CPPFLAGS += -DMAIN_INPUT_FILE_IS_$(*F)
-CPPFLAGS += @arch_cppflags@
-CPPFLAGS += -I/usr/local/include
-CPPFLAGS += -I$(cmdline_dir)
-CPPFLAGS += @osl_cppflags@
-
-LDFLAGS += @clock_gettime_ldflags@
-
-man_pages := $(patsubst %, $(man_dir)/%.1, $(executables))
-
-autocrap := config.h.in configure
-tarball_pfx := @PACKAGE_TARNAME@-$(PACKAGE_VERSION)
-tarball_delete := $(addprefix $(tarball_pfx)/,\
-	web .changelog_before_cvs .changelog_cvs .gitignore)
-tarball := @PACKAGE_TARNAME@-$(PACKAGE_VERSION).tar.bz2
-
-# To put more focus on warnings, be less verbose as default
-# Use 'make V=1' to see the full commands
-ifeq ("$(origin V)", "command line")
-	Q :=
-else
-	Q := @
-endif
-
-.PHONY: dep all clean distclean maintainer-clean install man tarball
-all: dep $(executables) $(man_pages)
-dep: $(deps)
-man: $(man_pages)
-tarball: $(tarball)
-
-$(object_dir) $(man_dir) $(ggo_dir) $(cmdline_dir) $(dep_dir) $(m4depdir):
-	$(Q) $(MKDIR_P) $@
-
--include $(m4_ggo_dir)/makefile
-
-# When in doubt, use brute force (Ken Thompson)
-TOUPPER = \
-$(subst a,A,$(subst b,B,$(subst c,C,$(subst d,D,$(subst e,E,\
-$(subst f,F,$(subst g,G,$(subst h,H,$(subst i,I,$(subst j,J,\
-$(subst k,K,$(subst l,L,$(subst m,M,$(subst n,N,$(subst o,O,\
-$(subst p,P,$(subst q,Q,$(subst r,R,$(subst s,S,$(subst t,T,\
-$(subst u,U,$(subst v,V,$(subst w,W,$(subst x,X,$(subst y,Y,\
-$(subst z,Z,$1))))))))))))))))))))))))))
-
-%_command_list.h: %.cmd %.c
-	@[ -z "$(Q)" ] || echo 'GEN $@'
-	$(Q) ./command_util.sh h < $< >$@
-%_command_list.man: %.cmd %.c
-	@[ -z "$(Q)" ] || echo 'GEN $@'
-	$(Q) ./command_util.sh man < $< > $@
-%_completion.h: %.cmd %.c
-	@[ -z "$(Q)" ] || echo 'GEN $@'
-	$(Q) ./command_util.sh compl $(strip $(call TOUPPER,$(*F)))_COMPLETERS \
-		$(strip $(call TOUPPER,$(*F)))_COMMANDS	< $< > $@
-
-server_command_list.h server_command_list.man server_completion.h: command.c
-afs_command_list.h afs_command_list.man afs_completion.h: afs.c aft.c attribute.c
-audiod_command_list.h audiod_command_list.man audiod_completion.h: audiod_command.c
-
-server_command_lists_man = server_command_list.man afs_command_list.man
-$(man_dir)/para_server.1: para_server $(server_command_lists_man) | $(man_dir)
-	@[ -z "$(Q)" ] || echo 'MAN $<'
-	$(Q) opts="-h --detailed-help -N `for i in $(server_command_lists_man); do printf "%s\n" "-i $$i"; done`"; \
-	$(HELP2MAN) $$opts ./para_server > $@
-
-$(man_dir)/para_audiod.1: para_audiod audiod_command_list.man | $(man_dir)
-	@[ -z "$(Q)" ] || echo 'MAN $<'
-	$(Q) $(HELP2MAN) -h --detailed-help -N -i audiod_command_list.man ./para_audiod > $@
-
-$(man_dir)/para_play.1: para_play play_command_list.man | $(man_dir)
-	@[ -z "$(Q)" ] || echo 'MAN $<'
-	$(Q) $(HELP2MAN) -h --detailed-help -N -i play_command_list.man ./para_play > $@
-
-$(man_dir)/%.1: % | $(man_dir)
-	@[ -z "$(Q)" ] || echo 'MAN $<'
-	$(Q) $(HELP2MAN) -h --detailed-help -N ./$< > $@
-
-$(object_dir)/crypt.o: crypt.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @openssl_cppflags@ $<
-$(object_dir)/spx_common.o: spx_common.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<
-
-$(object_dir)/spxdec_filter.o: spxdec_filter.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<
-
-$(object_dir)/spx_afh.o: spx_afh.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<
-
-$(object_dir)/oggdec_filter.o: oggdec_filter.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<
-
-$(object_dir)/ogg_afh.o: ogg_afh.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<
-
-$(object_dir)/ogg_afh_common.o: ogg_afh_common.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<
-
-$(object_dir)/mp3dec_filter.o: mp3dec_filter.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @mad_cppflags@ $<
 
-$(object_dir)/compress_filter.o: compress_filter.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) -O3 $<
-
-$(object_dir)/aacdec_filter.o: aacdec_filter.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @faad_cppflags@ $<
-
-$(object_dir)/aac_common.o: aac_common.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @faad_cppflags@ $<
-
-$(object_dir)/aac_afh.o: aac_afh.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @faad_cppflags@ $<
-
-$(object_dir)/mp3_afh.o: mp3_afh.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @id3tag_cppflags@ $<
-
-$(object_dir)/gui%.o: gui%.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @curses_cppflags@ $<
-$(object_dir)/ao_write.o: ao_write.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ao_cppflags@ $<
-
-$(object_dir)/%.cmdline.o: $(cmdline_dir)/%.cmdline.c $(cmdline_dir)/%.cmdline.h | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c $(CPPFLAGS) -Wno-unused-function -o $@ $<
-
-$(object_dir)/%.o: %.c | $(object_dir)
-	@[ -z "$(Q)" ] || echo 'CC $<'
-	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) $<
-
-$(dep_dir)/%.cmdline.d: $(cmdline_dir)/%.cmdline.c | $(dep_dir)
-	@[ -z "$(Q)" ] || echo 'DEP $<'
-	$(Q) ./depend.sh $(dep_dir) $(object_dir) $(cmdline_dir) \
-		$(CPPFLAGS) $< > $@
-
-$(dep_dir)/%.d: %.c | $(dep_dir)
-	@[ -z "$(Q)" ] || echo 'DEP $<'
-	$(Q) ./depend.sh $(dep_dir) $(object_dir) $(cmdline_dir) \
-		$(CPPFLAGS) $< > $@
-
-all_objs := @recv_objs@ @filter_objs@ @client_objs@ @gui_objs@ \
-	@audiod_objs@ @audioc_objs@ @fade_objs@ @server_objs@ \
-	@write_objs@ @afh_objs@ @play_objs@
-deps := $(addprefix $(dep_dir)/, $(all_objs:.o=.d))
-m4_deps := $(addprefix $(m4depdir)/, $(addsuffix .m4d, @executables@))
-
-recv_objs := $(addprefix $(object_dir)/, @recv_objs@)
-filter_objs := $(addprefix $(object_dir)/, @filter_objs@)
-client_objs := $(addprefix $(object_dir)/, @client_objs@)
-gui_objs := $(addprefix $(object_dir)/, @gui_objs@)
-audiod_objs := $(addprefix $(object_dir)/, @audiod_objs@)
-audioc_objs := $(addprefix $(object_dir)/, @audioc_objs@)
-fade_objs := $(addprefix $(object_dir)/, @fade_objs@)
-server_objs := $(addprefix $(object_dir)/, @server_objs@)
-write_objs := $(addprefix $(object_dir)/, @write_objs@)
-afh_objs := $(addprefix $(object_dir)/, @afh_objs@)
-play_objs := $(addprefix $(object_dir)/, @play_objs@)
-
-ifeq ($(findstring clean, $(MAKECMDGOALS)),)
--include $(deps)
--include $(m4_deps)
-endif
-
-para_recv: $(recv_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) $(recv_objs) -o $@ @recv_ldflags@ $(LDFLAGS)
-
-para_filter: $(filter_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) $(filter_objs) -o $@ @filter_ldflags@ $(LDFLAGS)
-
-para_client: $(client_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) -o $@ $(client_objs) @client_ldflags@ $(LDFLAGS)
-
-para_gui: $(gui_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) -o $@ $(gui_objs) @gui_ldflags@ $(LDFLAGS)
-
-para_audiod: $(audiod_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) -o $@ $(audiod_objs) @audiod_ldflags@ $(LDFLAGS)
-
-para_audioc: $(audioc_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) -o $@ $(audioc_objs) @audioc_ldflags@ $(LDFLAGS)
-
-para_fade: $(fade_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) -o $@ $(fade_objs) @fade_ldflags@ $(LDFLAGS)
-
-para_server: $(server_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) -o $@ $(server_objs) @server_ldflags@ $(LDFLAGS)
-
-para_write: $(write_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) -o $@ $(write_objs) @write_ldflags@ $(LDFLAGS)
-
-para_afh: $(afh_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) -o $@ $(afh_objs) @afh_ldflags@ $(LDFLAGS)
-
-para_play: $(play_objs)
-	@[ -z "$(Q)" ] || echo 'LD $@'
-	$(Q) $(CC) -o $@ $(play_objs) @play_ldflags@ $(LDFLAGS)
-
-clean:
-	@[ -z "$(Q)" ] || echo 'CLEAN'
-	$(Q) rm -f $(executables)
-	$(Q) rm -rf $(object_dir)
-
-clean2: clean
-	@[ -z "$(Q)" ] || echo 'CLEAN2'
-	$(Q) rm -f *_command_list.* *_completion.h
-	$(Q) rm -rf $(build_dir)
-distclean: clean2 test-clean
-	@[ -z "$(Q)" ] || echo 'DISTCLEAN'
-	$(Q) rm -f Makefile autoscan.log config.status config.log
-	$(Q) rm -rf autom4te.cache
-	$(Q) rm -f GPATH GRTAGS GSYMS GTAGS
-
-maintainer-clean: distclean
-	rm -f *.tar.bz2 config.h configure config.h.in
-	rm -rf web_sync
-
-install: all man
-	$(MKDIR_P) $(BINDIR) $(MANDIR)
-	$(install_sh) -s -m 755 $(executables) $(BINDIR)
-	$(install_sh) -m 644 $(man_pages) $(MANDIR)
-	$(MKDIR_P) $(VARDIR) >/dev/null 2>&1 || true # not fatal, so don't complain
-
-$(tarball):
-	rm -rf $(tarball_pfx).tar.bz2 $(tarball_pfx)
-	git archive --format=tar --prefix=$(tarball_pfx)/ HEAD \
-		| tar --delete $(tarball_delete) > $(tarball_pfx).tar
-	$(MKDIR_P) $(tarball_pfx)
-	./GIT-VERSION-GEN > $(tarball_pfx)/VERSION
-	cp -r $(autocrap) $(tarball_pfx)
-	tar rf $(tarball_pfx).tar $(tarball_pfx)/*
-	bzip2 -9 $(tarball_pfx).tar
-	ls -l $(tarball_pfx).tar.bz2
-	rm -rf $(tarball_pfx)
-%.ps: %.sk
-	sk2ps $< > $@
-%.pdf: %.ps
-	ps2pdf - - < $< > $@
-
-include $(test_dir)/makefile.test
+ggo_descriptions_declared := @ggo_descriptions_declared@
+object_executable_matrix := @object_executable_matrix@
+
+executables := @executables@
+recv_objs := @recv_objs@
+filter_objs := @filter_objs@
+client_objs := @client_objs@
+gui_objs := @gui_objs@
+audiod_objs := @audiod_objs@
+audioc_objs := @audioc_objs@
+fade_objs := @fade_objs@
+server_objs := @server_objs@
+write_objs := @write_objs@
+afh_objs := @afh_objs@
+play_objs := @play_objs@
+
+speex_cppflags := @speex_cppflags@
+opus_cppflags := @opus_cppflags@
+arch_cppflags := @arch_cppflags@
+osl_cppflags := @osl_cppflags@
+id3tag_cppflags := @id3tag_cppflags@
+openssl_cppflags := @openssl_cppflags@
+ogg_cppflags := @ogg_cppflags@
+mad_cppflags := @mad_cppflags@
+faad_cppflags := @faad_cppflags@
+curses_cppflags := @curses_cppflags@
+ao_cppflags := @ao_cppflags@
+
+clock_gettime_ldflags := @clock_gettime_ldflags@
+id3tag_ldflags := @id3tag_ldflags@
+ogg_ldflags := @ogg_ldflags@
+vorbis_ldflags := @vorbis_ldflags@
+speex_ldflags := @speex_ldflags@
+opus_ldflags := @opus_ldflags@
+faad_ldflags := @faad_ldflags@
+mad_ldflags := @mad_ldflags@
+flac_ldflags := @flac_ldflags@
+oss_ldflags := @oss_ldflags@
+alsa_ldflags := @alsa_ldflags@
+ao_ldflags := @ao_ldflags@
+readline_ldflags := @readline_ldflags@
+samplerate_ldflags := @samplerate_ldflags@
+osl_ldflags := @osl_ldflags@
+openssl_ldflags := @openssl_ldflags@
+gcrypt_ldflags := @gcrypt_ldflags@
+socket_ldflags := @socket_ldflags@
+nsl_ldflags := @nsl_ldflags@
+curses_ldflags := @curses_ldflags@
+core_audio_ldflags := @core_audio_ldflags@
+
+include Makefile.real
diff --git a/Makefile.real b/Makefile.real
new file mode 100644
index 00000000..d8020376
--- /dev/null
+++ b/Makefile.real
@@ -0,0 +1,300 @@
+VARDIR := /var/paraslash
+MANDIR := $(datarootdir)/man/man1
+STRIP := $(CROSS_COMPILE)strip
+HOSTCC ?= cc
+MKDIR_P := mkdir -p
+prefixed_executables := $(addprefix para_, $(executables))
+
+build_date := $(shell date)
+uname_s := $(shell uname -s 2>/dev/null || echo "UNKNOWN_OS")
+uname_rs := $(shell uname -rs)
+cc_version := $(shell $(CC) --version | head -n 1)
+GIT_VERSION := $(shell ./GIT-VERSION-GEN git-version.h)
+
+ifeq ("$(origin O)", "command line")
+	build_dir := $(O)
+else
+	build_dir := build
+endif
+ggo_dir := $(build_dir)/ggo
+object_dir := $(build_dir)/objects
+dep_dir := $(build_dir)/deps
+man_dir := $(build_dir)/man/man1
+cmdline_dir := $(build_dir)/cmdline
+m4depdir := $(build_dir)/m4deps
+help2man_dir := $(build_dir)/help2man
+hostbin_dir := $(build_dir)/host/bin
+m4_ggo_dir := m4/gengetopt
+test_dir := t
+
+# sort removes duplicate words, which is all we need here
+all_objs := $(sort $(recv_objs) $(filter_objs) $(client_objs) $(gui_objs) \
+	$(audiod_objs) $(audioc_objs) $(fade_objs) $(server_objs) \
+	$(write_objs) $(afh_objs) $(play_objs))
+deps := $(addprefix $(dep_dir)/, $(all_objs:.o=.d))
+m4_deps := $(addprefix $(m4depdir)/, $(addsuffix .m4d, $(executables)))
+
+# now prefix all objects with object dir
+recv_objs := $(addprefix $(object_dir)/, $(recv_objs))
+filter_objs := $(addprefix $(object_dir)/, $(filter_objs))
+client_objs := $(addprefix $(object_dir)/, $(client_objs))
+gui_objs := $(addprefix $(object_dir)/, $(gui_objs))
+audiod_objs := $(addprefix $(object_dir)/, $(audiod_objs))
+audioc_objs := $(addprefix $(object_dir)/, $(audioc_objs))
+fade_objs := $(addprefix $(object_dir)/, $(fade_objs))
+server_objs := $(addprefix $(object_dir)/, $(server_objs))
+write_objs := $(addprefix $(object_dir)/, $(write_objs))
+afh_objs := $(addprefix $(object_dir)/, $(afh_objs))
+play_objs := $(addprefix $(object_dir)/, $(play_objs))
+
+man_pages := $(patsubst %, $(man_dir)/%.1, $(prefixed_executables))
+
+autocrap := config.h.in configure
+tarball_pfx := $(PACKAGE_TARNAME)-$(PACKAGE_VERSION)
+tarball_delete := $(addprefix $(tarball_pfx)/,\
+	web .changelog_before_cvs .changelog_cvs .gitignore)
+tarball := $(tarball_pfx).tar.bz2
+
+.PHONY: dep all clean distclean maintainer-clean install man tarball
+all: dep $(prefixed_executables) $(man_pages)
+dep: $(deps)
+man: $(man_pages)
+tarball: $(tarball)
+
+include $(m4_ggo_dir)/makefile
+include $(test_dir)/makefile.test
+ifeq ($(findstring clean, $(MAKECMDGOALS)),)
+-include $(deps)
+-include $(m4_deps)
+endif
+
+$(object_dir) $(man_dir) $(ggo_dir) $(cmdline_dir) $(dep_dir) $(m4depdir) \
+		$(help2man_dir) $(hostbin_dir):
+	$(Q) $(MKDIR_P) $@
+
+# When in doubt, use brute force (Ken Thompson)
+TOUPPER = \
+$(subst a,A,$(subst b,B,$(subst c,C,$(subst d,D,$(subst e,E,\
+$(subst f,F,$(subst g,G,$(subst h,H,$(subst i,I,$(subst j,J,\
+$(subst k,K,$(subst l,L,$(subst m,M,$(subst n,N,$(subst o,O,\
+$(subst p,P,$(subst q,Q,$(subst r,R,$(subst s,S,$(subst t,T,\
+$(subst u,U,$(subst v,V,$(subst w,W,$(subst x,X,$(subst y,Y,\
+$(subst z,Z,$1))))))))))))))))))))))))))
+
+
+DEBUG_CPPFLAGS += -g -Wunused -Wundef -W
+DEBUG_CPPFLAGS += -Wredundant-decls
+DEBUG_CPPFLAGS += -Wall -Wno-sign-compare -Wno-unknown-pragmas
+DEBUG_CPPFLAGS += -Wformat-security
+DEBUG_CPPFLAGS += -Wmissing-format-attribute
+
+ifeq ($(uname_s),Linux)
+	CPPFLAGS += -fdata-sections -ffunction-sections
+	LDFLAGS += -Wl,--gc-sections
+	CPPFLAGS += -Wstrict-prototypes
+	CPPFLAGS += -Wshadow
+	# causes warnings on *BSD for the feature test macros
+	CPPFLAGS += -Wunused-macros
+endif
+CPPFLAGS += -Os
+CPPFLAGS += -Wuninitialized
+CPPFLAGS += -Wchar-subscripts
+CPPFLAGS += -DBINDIR='"$(BINDIR)"'
+CPPFLAGS += -DBUILD_DATE='"$(build_date)"'
+CPPFLAGS += -DUNAME_RS='"$(uname_rs)"'
+CPPFLAGS += -DCC_VERSION='"$(cc_version)"'
+CPPFLAGS += -Werror-implicit-function-declaration
+CPPFLAGS += -Wmissing-noreturn
+CPPFLAGS += -Wbad-function-cast
+CPPFLAGS += -fno-strict-aliasing
+CPPFLAGS += -DMAIN_INPUT_FILE_IS_$(*F)
+CPPFLAGS += $(arch_cppflags)
+CPPFLAGS += -I/usr/local/include
+CPPFLAGS += -I$(cmdline_dir)
+CPPFLAGS += $(osl_cppflags)
+
+LDFLAGS += $(clock_gettime_ldflags)
+
+# To put more focus on warnings, be less verbose as default
+# Use 'make V=1' to see the full commands
+ifeq ("$(origin V)", "command line")
+	Q :=
+else
+	Q := @
+endif
+
+%_command_list.h: %.cmd %.c
+	@[ -z "$(Q)" ] || echo 'GEN $@'
+	$(Q) ./command_util.sh h < $< >$@
+%_command_list.man: %.cmd %.c
+	@[ -z "$(Q)" ] || echo 'GEN $@'
+	$(Q) ./command_util.sh man < $< > $@
+%_completion.h: %.cmd %.c
+	@[ -z "$(Q)" ] || echo 'GEN $@'
+	$(Q) ./command_util.sh compl $(strip $(call TOUPPER,$(*F)))_COMPLETERS \
+		$(strip $(call TOUPPER,$(*F)))_COMMANDS	< $< > $@
+
+server_command_list.h server_command_list.man server_completion.h: command.c
+afs_command_list.h afs_command_list.man afs_completion.h: afs.c aft.c attribute.c
+audiod_command_list.h audiod_command_list.man audiod_completion.h: audiod_command.c
+
+server_command_lists_man = server_command_list.man afs_command_list.man
+$(man_dir)/para_server.1: $(help2man_dir)/para_server $(server_command_lists_man) | $(man_dir)
+	@[ -z "$(Q)" ] || echo 'MAN $<'
+	$(Q) opts="`for i in $(server_command_lists_man); do printf "%s\n" "-i $$i"; done`"; \
+	$(HELP2MAN) $$opts ./$< > $@
+
+$(man_dir)/para_audiod.1: $(help2man_dir)/para_audiod audiod_command_list.man | $(man_dir)
+	@[ -z "$(Q)" ] || echo 'MAN $<'
+	$(Q) $(HELP2MAN) -N -i audiod_command_list.man ./$< > $@
+
+$(man_dir)/para_play.1: $(help2man_dir)/para_play play_command_list.man | $(man_dir)
+	@[ -z "$(Q)" ] || echo 'MAN $<'
+	$(Q) $(HELP2MAN) -N -i play_command_list.man ./$< > $@
+
+$(man_dir)/%.1: $(help2man_dir)/% | $(man_dir)
+	@[ -z "$(Q)" ] || echo 'MAN $<'
+	$(Q) $(HELP2MAN) -N ./$< > $@
+
+$(hostbin_dir)/error2: error2.c | $(hostbin_dir)
+	@[ -z "$(Q)" ] || echo 'HCC $<'
+	$(Q) $(HOSTCC) -o $@ $<
+error2.h: $(hostbin_dir)/error2 Makefile
+	@[ -z "$(Q)" ] || echo 'ER2 $<'
+	@echo "$(object_executable_matrix)" | $< > $@
+
+$(object_dir)/%.o: %.c | $(object_dir)
+$(object_dir)/opus%.o: CPPFLAGS += $(opus_cppflags)
+$(object_dir)/gui%.o: CPPFLAGS += $(curses_cppflags)
+$(object_dir)/spx%.o: CPPFLAGS += $(speex_cppflags)
+$(object_dir)/%.cmdline.o: CPPFLAGS += -Wno-unused-function
+
+$(object_dir)/mp3_afh.o: CPPFLAGS += $(id3tag_cppflags)
+$(object_dir)/crypt.o: CPPFLAGS += $(openssl_cppflags)
+$(object_dir)/mp3dec_filter.o: CPPFLAGS += $(mad_cppflags)
+$(object_dir)/compress_filter.o: CPPFLAGS += -O3
+$(object_dir)/ao_write.o: CPPFLAGS += $(ao_cppflags)
+
+$(object_dir)/aacdec_filter.o \
+$(object_dir)/aac_common.o \
+$(object_dir)/aac_afh.o \
+: CPPFLAGS += $(faad_cppflags)
+
+$(object_dir)/spx_common.o \
+$(object_dir)/spxdec_filter.o \
+$(object_dir)/spx_afh.o \
+$(object_dir)/oggdec_filter.o \
+$(object_dir)/ogg_afh.o \
+$(object_dir)/ogg_afh_common.o \
+: CPPFLAGS += $(ogg_cppflags)
+
+$(object_dir)/%.o: %.c | $(object_dir)
+	@[ -z "$(Q)" ] || echo 'CC $<'
+	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) $<
+
+$(object_dir)/%.cmdline.o: $(cmdline_dir)/%.cmdline.c $(cmdline_dir)/%.cmdline.h | $(object_dir)
+	@[ -z "$(Q)" ] || echo 'CC $<'
+	$(Q) $(CC) -c $(CPPFLAGS) -Wno-unused-function -o $@ $<
+
+$(dep_dir)/%.cmdline.d: $(cmdline_dir)/%.cmdline.c error2.h | $(dep_dir)
+	@[ -z "$(Q)" ] || echo 'DEP $<'
+	$(Q) ./depend.sh $(dep_dir) $(object_dir) $(cmdline_dir) \
+		$(CPPFLAGS) $< > $@
+
+$(dep_dir)/%.d: %.c error2.h | $(dep_dir)
+	@[ -z "$(Q)" ] || echo 'DEP $<'
+	$(Q) ./depend.sh $(dep_dir) $(object_dir) $(cmdline_dir) \
+		$(CPPFLAGS) $< > $@
+
+para_recv para_afh para_play para_server: LDFLAGS += $(id3tag_ldflags)
+para_write para_play para_audiod: LDFLAGS += $(ao_ldflags) $(core_audio_ldflags)
+para_client para_audioc para_play : LDFLAGS += $(readline_ldflags)
+para_server: LDFLAGS += $(osl_ldflags)
+para_gui: LDFLAGS += $(curses_ldflags)
+para_server \
+para_client \
+para_audiod \
+:LDFLAGS += \
+	$(openssl_ldflags) \
+	$(gcrypt_ldflags)
+
+para_audiod \
+para_filter \
+para_play \
+: LDFLAGS += \
+	$(mad_ldflags) \
+	$(samplerate_ldflags) \
+	-lm
+
+para_write \
+para_play \
+para_audiod \
+para_fade \
+: LDFLAGS += \
+	$(oss_ldflags) \
+	$(alsa_ldflags)
+
+para_server \
+para_filter \
+para_audiod \
+para_play \
+para_afh \
+para_recv \
+: LDFLAGS += \
+	$(ogg_ldflags) \
+	$(vorbis_ldflags) \
+	$(speex_ldflags) \
+	$(opus_ldflags) \
+	$(faad_ldflags) \
+	$(flac_ldflags)
+
+para_server \
+para_client \
+para_audioc \
+para_audiod \
+para_recv \
+: LDFLAGS += \
+	$(socket_ldflags) $(nsl_ldflags)
+
+$(foreach exe,$(executables),$(eval para_$(exe): $$($(exe)_objs)))
+$(prefixed_executables):
+	@[ -z "$(Q)" ] || echo 'LD $@'
+	$(Q) $(CC) $^ -o $@ $(LDFLAGS)
+
+clean:
+	@[ -z "$(Q)" ] || echo 'CLEAN'
+	$(Q) rm -f $(prefixed_executables)
+	$(Q) rm -rf $(object_dir)
+
+clean2: clean
+	@[ -z "$(Q)" ] || echo 'CLEAN2'
+	$(Q) rm -f *_command_list.* *_completion.h
+	$(Q) rm -rf $(build_dir)
+distclean: clean2 test-clean
+	@[ -z "$(Q)" ] || echo 'DISTCLEAN'
+	$(Q) rm -f Makefile autoscan.log config.status config.log error2.h
+	$(Q) rm -rf autom4te.cache
+	$(Q) rm -f GPATH GRTAGS GSYMS GTAGS
+
+maintainer-clean: distclean
+	rm -f *.tar.bz2 config.h configure config.h.in
+	rm -rf web_sync
+
+install: all man
+	$(MKDIR_P) $(BINDIR) $(MANDIR)
+	$(INSTALL) -s --strip-program $(STRIP) -m 755 \
+		$(prefixed_executables) $(BINDIR)
+	$(INSTALL) -m 644 $(man_pages) $(MANDIR)
+	$(MKDIR_P) $(VARDIR) >/dev/null 2>&1 || true # not fatal, so don't complain
+
+$(tarball):
+	rm -rf $(tarball_pfx).tar.bz2 $(tarball_pfx)
+	git archive --format=tar --prefix=$(tarball_pfx)/ HEAD \
+		| tar --delete $(tarball_delete) > $(tarball_pfx).tar
+	$(MKDIR_P) $(tarball_pfx)
+	./GIT-VERSION-GEN > $(tarball_pfx)/VERSION
+	cp -r $(autocrap) $(tarball_pfx)
+	tar rf $(tarball_pfx).tar $(tarball_pfx)/*
+	bzip2 -9 $(tarball_pfx).tar
+	ls -l $(tarball_pfx).tar.bz2
+	rm -rf $(tarball_pfx)
diff --git a/NEWS b/NEWS
index b20c7c6b..c3cf479a 100644
--- a/NEWS
+++ b/NEWS
@@ -1,16 +1,34 @@
 NEWS
 ====
 
-----------------------------------------------
-0.5.1 (to be announced) "temporary implication"
-----------------------------------------------
+---------------------------------
+0.5.2 (???) "orthogonal interior"
+---------------------------------
+
+	- Minor fixes to avoid clang warnings.
+
+------------------------------------------
+0.5.1 (2013-12-20) "temporary implication"
+------------------------------------------
 
-Lots of fixes and improvements all over the place.
+Lots of fixes and improvements all over the place, and a major overhaul
+of the build system.
 
 	- Audiod improvements and fixes.
 	- Buffer tree robustness improvements.
 	- Cleanup of the mood subsystem.
 	- Fixes and cleanups for the flac decoder.
+	- Latency improvements for the ogg/opus decoder.
+	- Crypto support is now optional. On systems without
+	  openssl/gcrypt, the build succeeds but para_server,
+	  para_audiod, para_client won't be built.
+	- The build system now works for cross-compile setups.
+	- The dependency tree has been flattened, which speeds up
+	  builds and avoids to recreate the man pages on every change.
+	- The error code helper has been rewritten from perl to C,
+	  which further improves build time.
+	- Many small bugs in the build system have been identified
+	  and fixed.
 
 ----------------------------------------
 0.5.0 (2013-08-23) "invertible validity"
diff --git a/afs.h b/afs.h
index a63968f1..8a6b927c 100644
--- a/afs.h
+++ b/afs.h
@@ -279,13 +279,9 @@ int aft_get_row_of_path(const char *path, struct osl_row **row);
 int open_and_update_audio_file(struct osl_row *aft_row, long score,
 	struct audio_file_data *afd);
 int load_afd(int shmid, struct audio_file_data *afd);
-int load_afsi(struct afs_info *afsi, struct osl_object *obj);
-void save_afsi(struct afs_info *afsi, struct osl_object *obj);
 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi);
 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi);
-int get_afsi_of_path(const char *path, struct afs_info *afsi);
 int get_audio_file_path_of_row(const struct osl_row *row, char **path);
-int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj);
 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func);
 void aft_check_callback(int fd, __a_unused const struct osl_object *query);
 
diff --git a/aft.c b/aft.c
index 377740d1..f529416a 100644
--- a/aft.c
+++ b/aft.c
@@ -163,7 +163,7 @@ enum afsi_offsets {
 	AFSI_SIZE = 32
 };
 
-/**
+/*
  * Convert a struct afs_info to an osl object.
  *
  * \param afsi Pointer to the audio file info to be converted.
@@ -171,7 +171,7 @@ enum afsi_offsets {
  *
  * \sa load_afsi().
  */
-void save_afsi(struct afs_info *afsi, struct osl_object *obj)
+static void save_afsi(struct afs_info *afsi, struct osl_object *obj)
 {
 	char *buf = obj->data;
 
@@ -186,17 +186,17 @@ void save_afsi(struct afs_info *afsi, struct osl_object *obj)
 	memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
 }
 
-/**
- *  Get the audio file selector info struct stored in an osl object.
+/*
+ * Get the audio file selector info struct stored in an osl object.
  *
  * \param afsi Points to the audio_file info structure to be filled in.
  * \param obj The osl object holding the data.
  *
- * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
+ * \return Standard.
  *
  * \sa save_afsi().
  */
-int load_afsi(struct afs_info *afsi, struct osl_object *obj)
+static int load_afsi(struct afs_info *afsi, struct osl_object *obj)
 {
 	char *buf = obj->data;
 	if (obj->size < AFSI_SIZE)
@@ -493,15 +493,16 @@ static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
 	return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
 }
 
-/**
- * Get the osl object holding the audio file selector info of a row.
+/*
+ * Get the audio file selector info object of a row.
  *
  * \param row Pointer to a row in the audio file table.
  * \param obj Result pointer.
  *
  * \return Standard.
  */
-int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
+static int get_afsi_object_of_row(const struct osl_row *row,
+		struct osl_object *obj)
 {
 	return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
 }
@@ -541,15 +542,15 @@ int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
 	return load_afsi(afsi, &obj);
 }
 
-/**
+/*
  * Get the audio file selector info, given the path of an audio table.
  *
  * \param path The full path of the audio file.
  * \param afsi Result pointer.
  *
- * \return Positive on success, negative on errors.
+ * \return Standard.
  */
-int get_afsi_of_path(const char *path, struct afs_info *afsi)
+static int get_afsi_of_path(const char *path, struct afs_info *afsi)
 {
 	struct osl_object obj;
 	int ret = get_afsi_object_of_path(path, &obj);
diff --git a/configure.ac b/configure.ac
index ec346059..36eab114 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,7 +8,22 @@ AC_CONFIG_HEADER([config.h])
 
 AC_CONFIG_FILES([Makefile])
 AC_DEFUN([add_dot_o],[$(for i in $@; do printf "$i.o "; done)])
-AC_DEFUN([objlist_to_errlist],[$(for i in $@; do printf "DEFINE_ERRLIST($(echo $i| tr 'a-z' 'A-Z'));"; done) [const char **para_errlist[[]]] = {$(for i in $@; do printf "PARA_ERRLIST($(echo $i | tr 'a-z' 'A-Z')), "; done) }])
+AC_DEFUN([add_cmdline],[$(for i in $@; do printf "${i}.cmdline "; done)])
+AC_DEFUN([make_errlist_defines], \
+	$(for i in $@; do \
+		printf "DEFINE_ERRLIST($(echo $i | tr 'a-z' 'A-Z'));"; \
+	done) \
+)
+AC_DEFUN([make_para_errlists], \
+	$(for i in $@; do \
+		printf "PARA_ERRLIST($(echo $i | tr 'a-z' 'A-Z')), "; \
+	done) \
+)
+AC_DEFUN([objlist_to_errlist],[ \
+	make_errlist_defines($@) \
+	[const char **para_errlist[[]]] = {make_para_errlists($@)} \
+])
+
 AC_PATH_PROG(UNAMEPATH, uname, no)
 if test "$UNAMEPATH" = "no"; then
 	AC_MSG_ERROR(unable to determine system type)
@@ -33,11 +48,12 @@ AC_PATH_PROG([help2man], [help2man])
 test -z "$help2man" && AC_MSG_ERROR(
 	[help2man is required to build this package])
 
+AC_PATH_PROG([install], [install])
+test -z "$install" && AC_MSG_ERROR(
+	[The install program is required to build this package])
+
 AC_PROG_CC
 AC_PROG_CPP
-AC_PROG_INSTALL
-AC_SUBST(install_sh, [$INSTALL])
-AC_REPLACE_FNMATCH
 
 AC_HEADER_DIRENT
 AC_HEADER_STDC
@@ -71,11 +87,9 @@ AC_TYPE_UINT64_T
 # Checks for library functions.
 AC_FUNC_FORK
 AC_PROG_GCC_TRADITIONAL
-AC_FUNC_MALLOC
 AC_FUNC_MEMCMP
 AC_FUNC_MKTIME
 AC_FUNC_MMAP
-AC_FUNC_REALLOC
 AC_FUNC_SELECT_ARGTYPES
 AC_FUNC_STAT
 AC_FUNC_STRFTIME
@@ -89,197 +103,7 @@ AC_CHECK_FUNCS([atexit dup2 memchr memmove memset \
 	strncasecmp strrchr strspn alarm mkdir inet_ntoa socket], [],
 	[AC_MSG_ERROR([function not found, cannot live without it])])
 
-AC_DEFUN([add_cmdline],[$(for i in $@; do printf "${i}.cmdline "; done)])
-
-
-all_errlist_objs="mp3_afh afh_common net string signal time daemon
-	stat afh amp_filter fd ringbuffer sched audiod
-	grab_client filter_common wav_filter compress_filter http_recv
-	dccp_recv recv_common write_common file_write audiod_command
-	client_common recv stdout filter stdin audioc write client
-	exec send_common ggo udp_recv color fec fecdec_filter
-	prebuffer_filter bitstream imdct check_wav
-	wma_afh wma_common wmadec_filter buffer_tree crypt_common
-	gui gui_theme sideband afh_recv play version"
-
-executables="recv filter audioc write client afh audiod play"
-
-recv_cmdline_objs="add_cmdline(recv http_recv dccp_recv udp_recv afh_recv)"
-
-recv_errlist_objs="
-	http_recv recv_common recv time string net dccp_recv fd
-	sched stdout ggo udp_recv buffer_tree afh_recv afh_common
-	wma_afh wma_common mp3_afh version
-"
-
-recv_ldflags=""
-
-filter_cmdline_objs="add_cmdline(filter compress_filter amp_filter prebuffer_filter)"
-filter_errlist_objs="filter_common wav_filter compress_filter filter string
-	stdin stdout sched fd amp_filter ggo fecdec_filter fec version
-	prebuffer_filter time bitstream imdct wma_common wmadec_filter buffer_tree"
-filter_ldflags="-lm"
-filters=" compress wav amp fecdec wmadec prebuffer"
-
-audioc_cmdline_objs="add_cmdline(audioc)"
-audioc_errlist_objs="
-	audioc
-	string
-	net
-	fd
-	version
-	ggo
-"
-audioc_ldflags=""
-
-audiod_cmdline_objs="add_cmdline(audiod compress_filter http_recv dccp_recv file_write client amp_filter udp_recv prebuffer_filter)"
-audiod_errlist_objs="audiod signal string daemon stat net crypt_common sideband
-	time grab_client filter_common wav_filter compress_filter amp_filter http_recv dccp_recv
-	recv_common fd sched write_common file_write audiod_command fecdec_filter
-	client_common ggo udp_recv color fec prebuffer_filter version
-	bitstream imdct wma_common wmadec_filter buffer_tree"
-audiod_ldflags="-lm"
-audiod_audio_formats="wma"
-
-afh_cmdline_objs="add_cmdline(afh)"
-afh_errlist_objs="afh string fd mp3_afh afh_common time wma_afh wma_common
-	version ggo"
-afh_ldflags=""
-
-write_cmdline_objs="add_cmdline(write file_write)"
-write_errlist_objs="write write_common file_write time fd string sched stdin
-	buffer_tree ggo check_wav version"
-write_ldflags=""
-writers=" file"
-default_writer="FILE_WRITE"
-
-client_cmdline_objs="add_cmdline(client)"
-client_errlist_objs="
-	client
-	net
-	string
-	fd
-	sched
-	stdin
-	stdout
-	time
-	sideband
-	client_common
-	buffer_tree
-	crypt_common
-	version
-	ggo
-"
-client_ldflags=""
-
-gui_cmdline_objs="add_cmdline(gui)"
-gui_errlist_objs="
-	exec
-	signal
-	string
-	stat
-	ringbuffer
-	fd
-	gui
-	gui_theme
-	time
-	version
-	ggo
-"
-gui_objs="$gui_cmdline_objs $gui_errlist_objs"
-play_errlist_objs="play fd sched ggo buffer_tree time string net
-	afh_recv afh_common
-	wma_afh wma_common mp3_afh
-	recv_common udp_recv http_recv dccp_recv
-	filter_common fec bitstream imdct
-	wav_filter compress_filter amp_filter prebuffer_filter fecdec_filter
-		wmadec_filter
-	write_common file_write
-	version
-"
-play_cmdline_objs="add_cmdline(http_recv dccp_recv udp_recv afh_recv compress_filter amp_filter prebuffer_filter file_write play)"
-play_ldflags="-lm"
-########################################################################### snprintf
-# ===========================================================================
-#        http://www.nongnu.org/autoconf-archive/ax_func_snprintf.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_FUNC_SNPRINTF
-#
-# DESCRIPTION
-#
-#   Checks for a fully C99 compliant snprintf, in particular checks whether
-#   it does bounds checking and returns the correct string length; does the
-#   same check for vsnprintf. If no working snprintf or vsnprintf is found,
-#   it prints an error message and aborts.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Ruediger Kuhlmann <info@ruediger-kuhlmann.de>
-#
-#   Copying and distribution of this file, with or without modification, are
-#   permitted in any medium without royalty provided the copyright notice
-#   and this notice are preserved.
-
-AU_ALIAS([AC_FUNC_SNPRINTF], [AX_FUNC_SNPRINTF])
-AC_DEFUN([AX_FUNC_SNPRINTF],
-[AC_CHECK_FUNCS(snprintf vsnprintf)
-AC_MSG_CHECKING(for working snprintf)
-AC_CACHE_VAL(ac_cv_have_working_snprintf,
-[AC_RUN_IFELSE([AC_LANG_SOURCE([[
-#include <stdio.h>
-
-int main(void)
-{
-    char bufs[5] = { 'x', 'x', 'x', '\0', '\0' };
-    char bufd[5] = { 'x', 'x', 'x', '\0', '\0' };
-    int i;
-    i = snprintf (bufs, 2, "%s", "111");
-    if (strcmp (bufs, "1")) exit (1);
-    if (i != 3) exit (1);
-    i = snprintf (bufd, 2, "%d", 111);
-    if (strcmp (bufd, "1")) exit (1);
-    if (i != 3) exit (1);
-    exit(0);
-}]])],[ac_cv_have_working_snprintf=yes],
-[ac_cv_have_working_snprintf=no],[ac_cv_have_working_snprintf=cross])])
-AC_MSG_RESULT([$ac_cv_have_working_snprintf])
-AC_MSG_CHECKING(for working vsnprintf)
-AC_CACHE_VAL(ac_cv_have_working_vsnprintf,
-[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
-#include <stdarg.h>
-
-int my_vsnprintf (char *buf, const char *tmpl, ...)
-{
-    int i;
-    va_list args;
-    va_start (args, tmpl);
-    i = vsnprintf (buf, 2, tmpl, args);
-    va_end (args);
-    return i;
-}
-
-int main(void)
-{
-    char bufs[5] = { 'x', 'x', 'x', '\0', '\0' };
-    char bufd[5] = { 'x', 'x', 'x', '\0', '\0' };
-    int i;
-    i = my_vsnprintf (bufs, "%s", "111");
-    if (strcmp (bufs, "1")) exit (1);
-    if (i != 3) exit (1);
-    i = my_vsnprintf (bufd, "%d", 111);
-    if (strcmp (bufd, "1")) exit (1);
-    if (i != 3) exit (1);
-    exit(0);
-}]])],[ac_cv_have_working_vsnprintf=yes],
-[ac_cv_have_working_vsnprintf=no],[ac_cv_have_working_vsnprintf=cross])])
-AC_MSG_RESULT([$ac_cv_have_working_vsnprintf])
-if test x$ac_cv_have_working_snprintf$ac_cv_have_working_vsnprintf != "xyesyes"; then
-AC_MSG_ERROR([fatal: buggy snprintf() detected])
-fi])
-AX_FUNC_SNPRINTF()
+executables="recv filter audioc write afh play"
 ################################################################## clock_gettime
 clock_gettime_lib=
 AC_CHECK_LIB([c], [clock_gettime], [clock_gettime_lib=c], [
@@ -312,63 +136,17 @@ fi
 
 AC_CHECK_HEADER(osl.h, [], have_osl=no)
 AC_CHECK_LIB([osl], [osl_open_table], [], have_osl=no)
-if test "$have_osl" = "no"; then
+if test "$have_osl" = "yes"; then
+	AC_SUBST(osl_cppflags)
+	osl_ldflags="$osl_libs -losl"
+	AC_SUBST(osl_ldflags)
+else
 	AC_MSG_WARN([libosl not found, can not build para_server.
 Download libosl at
 	http://systemlinux.org/~maan/osl
 or execute
 	git clone git://git.tuebingen.mpg.de/osl
 	])
-else
-	extras="$extras server"
-	executables="$executables server"
-	server_cmdline_objs="add_cmdline(server)"
-	server_errlist_objs="
-		server
-		afh_common
-		mp3_afh
-		vss command
-		net
-		string
-		signal
-		time
-		daemon
-		http_send
-		close_on_fork
-		mm
-		crypt_common
-		ipc dccp_send
-		fd
-		user_list
-		chunk_queue
-		afs
-		aft
-		mood
-		score
-		attribute
-		blob
-		playlist
-		sched
-		acl
-		send_common
-		udp_send
-		color
-		fec
-		wma_afh
-		wma_common
-		sideband
-		version
-		ggo
-	"
-	all_errlist_objs="$all_errlist_objs server vss command
-		http_send close_on_fork mm ipc dccp_send user_list
-		chunk_queue afs aft mood score attribute blob playlist
-		acl udp_send"
-
-	server_ldflags=""
-	audio_format_handlers="mp3 wma"
-	AC_SUBST(osl_cppflags)
-	server_ldflags="$server_ldflags $osl_libs -losl"
 fi
 CPPFLAGS="$OLD_CPPFLAGS"
 LDFLAGS="$OLD_LDFLAGS"
@@ -424,15 +202,8 @@ if test "$check_openssl" = "yes"; then
 	if test "$have_openssl" = "yes"; then
 		AC_DEFINE(HAVE_OPENSSL, 1, [define to 1 to turn on openssl support])
 		AC_SUBST(openssl_cppflags)
-		openssl_libs="$openssl_libs -lssl -lcrypto"
-		server_ldflags="$server_ldflags $openssl_libs"
-		client_ldflags="$client_ldflags $openssl_libs"
-		audiod_ldflags="$audiod_ldflags $openssl_libs"
-
-		all_errlist_objs="$all_errlist_objs crypt"
-		server_errlist_objs="$server_errlist_objs crypt"
-		client_errlist_objs="$client_errlist_objs crypt"
-		audiod_errlist_objs="$audiod_errlist_objs crypt"
+		openssl_ldflags="$openssl_libs -lssl -lcrypto"
+		AC_SUBST(openssl_ldflags)
 
 		check_gcrypt="no"
 	else
@@ -467,15 +238,8 @@ if test "$check_gcrypt" = "yes"; then
 	if test "$have_gcrypt" = "yes"; then
 		AC_DEFINE(HAVE_GCRYPT, 1, [define to 1 to turn on gcrypt support])
 		AC_SUBST(gcrypt_cppflags)
-		gcrypt_libs="$gcrypt_libs -lgcrypt"
-		server_ldflags="$server_ldflags $gcrypt_libs"
-		client_ldflags="$client_ldflags $gcrypt_libs"
-		audiod_ldflags="$audiod_ldflags $gcrypt_libs"
-
-		all_errlist_objs="$all_errlist_objs gcrypt"
-		server_errlist_objs="$server_errlist_objs gcrypt"
-		client_errlist_objs="$client_errlist_objs gcrypt"
-		audiod_errlist_objs="$audiod_errlist_objs gcrypt"
+		gcrypt_ldflags="$gcrypt_libs -lgcrypt"
+		AC_SUBST(gcrypt_ldflags)
 	else
 		AC_MSG_WARN([gcrypt library not found])
 	fi
@@ -485,35 +249,18 @@ if test "$check_gcrypt" = "yes"; then
 else
 	have_gcrypt="no"
 fi
-###########################################################################
-if test "$have_openssl" = "no" -a "$have_gcrypt" = "no"; then
-	AC_MSG_ERROR([neither openssl nor gcrypt usable])
-fi
 ########################################################################### libsocket
 AC_CHECK_LIB([c], [socket],
-	[socket_lib=],
-	[socket_lib="-lsocket"]
+	[socket_ldlflags=],
+	[socket_ldflags="-lsocket"]
 )
-server_ldflags="$server_ldflags $socket_lib"
-client_ldflags="$client_ldflags $socket_lib"
-audioc_ldflags="$audioc_ldflags $socket_lib"
-audiod_ldflags="$audiod_ldflags $socket_lib"
-recv_ldflags="$recv_ldflags $socket_lib"
-AC_SEARCH_LIBS([connect],[socket],[],[
-	AC_MSG_ERROR([Fatal: Did not find connect().])
-],[])
+AC_SUBST(socket_ldflags)
 ########################################################################### libnsl
 AC_CHECK_LIB([c], [gethostbyname],
-	[nsl_lib=],
-	[nsl_lib="-lnsl"]
+	[nsl_ldflags=],
+	[nsl_ldflags="-lnsl"]
 )
-server_ldflags="$server_ldflags $nsl_lib"
-client_ldflags="$client_ldflags $nsl_lib"
-audioc_ldflags="$audioc_ldflags $nsl_lib"
-recv_ldflags="$recv_ldflags $nsl_lib"
-AC_SEARCH_LIBS([inet_ntoa],[nsl],[],[
-	AC_MSG_ERROR([Fatal: Did not find inet_ntoa().])
-],[])
+AC_SUBST(nsl_ldflags)
 ########################################################################### ucred
 AC_MSG_CHECKING(for struct ucred)
 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
@@ -556,26 +303,20 @@ fi
 AC_CHECK_HEADER(curses.h, [], [
 	have_curses="no"
 ])
-gui_ldflags="$curses_libs"
+curses_ldflags="$curses_libs"
 AC_CHECK_LIB([ncursesw], [initscr],
-	[gui_ldflags="$curses_libs -lncursesw"], [
+	[curses_ldflags="$curses_libs -lncursesw"], [
 		AC_CHECK_LIB([curses], [initscr],
-			[gui_ldflags="$curses_libs -lcurses"],
+			[curses_ldflags="$curses_libs -lcurses"],
 			[have_curses="no"]
 		)
 	]
 )
-if test "$have_curses" = "yes"; then
-	AC_SUBST(curses_cppflags)
-	extras="$extras gui"
-	executables="$executables gui"
-else
-	AC_MSG_WARN([no curses lib, cannot build para_gui])
-fi
+AC_SUBST(curses_cppflags)
+AC_SUBST(curses_ldflags)
 CPPFLAGS="$OLD_CPPFLAGS"
 LDFLAGS="$OLD_LDFLAGS"
 LIBS="$OLD_LIBS"
-
 ########################################################################### ip_mreqn
 AC_MSG_CHECKING(for struct ip_mreqn (UDPv4 multicast))
 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
@@ -603,28 +344,8 @@ if test ${have_core_audio} = yes; then
 	f2="-framework AudioToolbox"
 	f3="-framework AudioUnit"
 	f4="-framework CoreServices"
-	f="$f1 $f2 $f3 $f4"
-
-	all_errlist_objs="$all_errlist_objs osx_write"
-	# ipc is linked into para_server server and into the osx writer. If osl
-	# was not found, para_server will not be built and ipc has not yet been
-	# added to the list of all objects, so we must add it here.
-	if test "$have_osl" = "no"; then
-		all_errlist_objs="$all_errlist_objs ipc"
-	fi
-	audiod_errlist_objs="$audiod_errlist_objs osx_write ipc"
-	audiod_cmdline_objs="$audiod_cmdline_objs osx_write.cmdline"
-	audiod_ldflags="$audiod_ldflags $f"
-
-	play_errlist_objs="$play_errlist_objs osx_write ipc"
-	play_cmdline_objs="$play_cmdline_objs osx_write.cmdline"
-	play_ldflags="$play_ldflags $f"
-
-	write_errlist_objs="$write_errlist_objs osx_write ipc"
-	write_cmdline_objs="$write_cmdline_objs osx_write.cmdline"
-	write_ldflags="$write_ldflags $f"
-	writers="$writers osx"
-	default_writer="OSX_WRITE"
+	core_audio_ldflags="$f1 $f2 $f3 $f4"
+	AC_SUBST(core_audio_ldflags)
 	AC_DEFINE(HAVE_CORE_AUDIO, 1, define to 1 on Mac Os X)
 fi
 ####################################################### ogg/vorbis/speex/opus
@@ -711,90 +432,30 @@ if test "$have_vorbis" = "yes" || \
 		test "$have_speex" = "yes" || \
 		test "$have_opus" = "yes"; then
 	AC_SUBST(ogg_cppflags)
-	ogg_libs="$ogg_libs -logg"
+	ogg_ldflags="$ogg_libs -logg"
 	if test "$OSTYPE" = "Darwin"; then
-		ogg_libs="-Wl,-bind_at_load $ogg_libs"
+		ogg_ldflags="-Wl,-bind_at_load $ogg_ldflags"
 	fi
-	server_ldflags="$server_ldflags $ogg_libs"
-	filter_ldflags="$filter_ldflags $ogg_libs"
-	audiod_ldflags="$audiod_ldflags $ogg_libs"
-	play_ldflags="$play_ldflags $ogg_libs"
-	afh_ldflags="$afh_ldflags $ogg_libs"
-	recv_ldflags="$recv_ldflags $ogg_libs"
-	all_errlist_objs="$all_errlist_objs ogg_afh_common"
-	afh_errlist_objs="$afh_errlist_objs ogg_afh_common"
-	recv_errlist_objs="$recv_errlist_objs ogg_afh_common"
-	server_errlist_objs="$server_errlist_objs ogg_afh_common"
-	play_errlist_objs="$play_errlist_objs ogg_afh_common"
+	AC_SUBST(ogg_ldflags)
 fi
 if test "$have_vorbis" = "yes"; then
-	all_errlist_objs="$all_errlist_objs oggdec_filter ogg_afh"
 	AC_DEFINE(HAVE_OGGVORBIS, 1, define to 1 to turn on ogg/vorbis support)
-	filters="$filters oggdec"
-	vorbis_libs="-lvorbis -lvorbisfile"
-	server_ldflags="$server_ldflags $vorbis_libs"
-	filter_ldflags="$filter_ldflags $vorbis_libs"
-	audiod_ldflags="$audiod_ldflags $vorbis_libs"
-	play_ldflags="$play_ldflags $vorbis_libs"
-	afh_ldflags="$afh_ldflags $vorbis_libs"
-	recv_ldflags="$recv_ldflags $vorbis_libs"
-
-	server_errlist_objs="$server_errlist_objs ogg_afh"
-	filter_errlist_objs="$filter_errlist_objs oggdec_filter"
-	audiod_errlist_objs="$audiod_errlist_objs oggdec_filter"
-	play_errlist_objs="$play_errlist_objs oggdec_filter ogg_afh"
-	afh_errlist_objs="$afh_errlist_objs ogg_afh"
-	recv_errlist_objs="$recv_errlist_objs ogg_afh"
-
-	audiod_audio_formats="$audiod_audio_formats ogg"
-	audio_format_handlers="$audio_format_handlers ogg"
-else
-	AC_MSG_WARN([no ogg/vorbis $msg])
+	vorbis_ldflags="$vorbis_libs -lvorbis -lvorbisfile"
+	AC_SUBST(vorbis_ldflags)
 fi
 if test "$have_speex" = "yes"; then
-	all_errlist_objs="$all_errlist_objs spxdec_filter spx_afh spx_common"
 	AC_DEFINE(HAVE_SPEEX, 1, define to 1 to turn on ogg/speex support)
-	filters="$filters spxdec"
-	speex_libs="-lspeex"
-	server_ldflags="$server_ldflags $speex_libs"
-	filter_ldflags="$filter_ldflags $speex_libs"
-	audiod_ldflags="$audiod_ldflags $speex_libs"
-	play_ldflags="$play_ldflags $speex_libs"
-	afh_ldflags="$afh_ldflags $speex_libs"
-	recv_ldflags="$recv_ldflags $speex_libs"
-
-	server_errlist_objs="$server_errlist_objs spx_afh spx_common"
-	filter_errlist_objs="$filter_errlist_objs spxdec_filter spx_common"
-	audiod_errlist_objs="$audiod_errlist_objs spxdec_filter spx_common"
-	play_errlist_objs="$play_errlist_objs spxdec_filter spx_afh spx_common"
-	afh_errlist_objs="$afh_errlist_objs spx_afh spx_common"
-	recv_errlist_objs="$recv_errlist_objs spx_afh spx_common"
-
-	audiod_audio_formats="$audiod_audio_formats spx"
-	audio_format_handlers="$audio_format_handlers spx"
+	AC_SUBST(speex_cppflags)
+	speex_ldflags="$speex_libs -lspeex"
+	AC_SUBST(speex_ldflags)
 else
 	AC_MSG_WARN([no ogg/speex $msg])
 fi
 if test "$have_opus" = "yes"; then
-	all_errlist_objs="$all_errlist_objs opusdec_filter opus_afh opus_common"
 	AC_DEFINE(HAVE_OPUS, 1, define to 1 to turn on ogg/opus support)
-	filters="$filters opusdec"
-	opus_libs="-lopus"
-	server_ldflags="$server_ldflags $opus_libs"
-	filter_ldflags="$filter_ldflags $opus_libs"
-	audiod_ldflags="$audiod_ldflags $opus_libs"
-	afh_ldflags="$afh_ldflags $opus_libs"
-	play_ldflags="$play_ldflags $opus_libs"
-	recv_ldflags="$recv_ldflags $opus_libs"
-
-	server_errlist_objs="$server_errlist_objs opus_afh opus_common"
-	filter_errlist_objs="$filter_errlist_objs opusdec_filter opus_common"
-	audiod_errlist_objs="$audiod_errlist_objs opusdec_filter opus_common"
-	afh_errlist_objs="$afh_errlist_objs opus_afh opus_common"
-	play_errlist_objs="$play_errlist_objs opusdec_filter opus_afh opus_common"
-	recv_errlist_objs="$recv_errlist_objs opus_afh opus_common"
-
-	audiod_audio_formats="$audiod_audio_formats opus"
+	AC_SUBST(opus_cppflags)
+	opus_ldflags="$opus_libs -lopus"
+	AC_SUBST(opus_ldflags)
 	audio_format_handlers="$audio_format_handlers opus"
 else
 	AC_MSG_WARN([no ogg/opus $msg])
@@ -823,27 +484,9 @@ AC_CHECK_HEADER(neaacdec.h, [], have_faad=no)
 AC_CHECK_LIB([faad], [NeAACDecOpen], [], have_faad=no)
 if test "$have_faad" = "yes"; then
 	AC_DEFINE(HAVE_FAAD, 1, define to 1 if you want to build the aacdec filter)
-	all_errlist_objs="$all_errlist_objs aac_common aacdec_filter aac_afh"
-	filter_errlist_objs="$filter_errlist_objs aacdec_filter aac_common"
-	afh_errlist_objs="$afh_errlist_objs aac_common aac_afh"
-	audiod_errlist_objs="$audiod_errlist_objs aacdec_filter aac_common"
-	play_errlist_objs="$play_errlist_objs aacdec_filter aac_afh aac_common"
-	server_errlist_objs="$server_errlist_objs aac_afh aac_common"
-	recv_errlist_objs="$recv_errlist_objs aac_afh aac_common"
-
-	server_ldflags="$server_ldflags $faad_libs -lfaad"
-	filter_ldflags="$filter_ldflags $faad_libs -lfaad"
-	audiod_ldflags="$audiod_ldflags $faad_libs -lfaad"
-	play_ldflags="$play_ldflags $faad_libs -lfaad"
-	afh_ldflags="$afh_ldflags $faad_libs -lfaad"
-	recv_ldflags="$afh_ldflags $faad_libs -lfaad"
-
-	audiod_audio_formats="$audiod_audio_formats aac"
-	audio_format_handlers="$audio_format_handlers aac"
-	filters="$filters aacdec"
 	AC_SUBST(faad_cppflags)
-else
-	AC_MSG_WARN([no aac support in para_audiod/para_filter])
+	faad_ldflags="$faad_libs -lfaad"
+	AC_SUBST(faad_ldflags)
 fi
 CPPFLAGS="$OLD_CPPFLAGS"
 LDFLAGS="$OLD_LDFLAGS"
@@ -874,19 +517,9 @@ AC_CHECK_LIB([mad], [mad_stream_init], [], [
 ])
 if test "$have_mad" = "yes"; then
 	AC_DEFINE(HAVE_MAD, 1, define to 1 if you want to build the mp3dec filter)
-	filter_cmdline_objs="$filter_cmdline_objs add_cmdline(mp3dec_filter)"
-	audiod_cmdline_objs="$audiod_cmdline_objs add_cmdline(mp3dec_filter)"
-	play_cmdline_objs="$play_cmdline_objs add_cmdline(mp3dec_filter)"
-	all_errlist_objs="$all_errlist_objs mp3dec_filter"
-	filter_errlist_objs="$filter_errlist_objs mp3dec_filter"
-	audiod_errlist_objs="$audiod_errlist_objs mp3dec_filter"
-	play_errlist_objs="$play_errlist_objs mp3dec_filter"
-	filter_ldflags="$filter_ldflags $mad_libs -lmad"
-	audiod_ldflags="$audiod_ldflags $mad_libs -lmad"
-	play_ldflags="$play_ldflags $mad_libs -lmad"
-	audiod_audio_formats="$audiod_audio_formats mp3"
-	filters="$filters mp3dec"
 	AC_SUBST(mad_cppflags)
+	mad_ldflags="$mad_libs -lmad"
+	AC_SUBST(mad_ldflags)
 else
 	AC_MSG_WARN([no mp3dec support in para_audiod/para_filter])
 fi
@@ -922,14 +555,8 @@ AC_MSG_RESULT($have_libid3tag)
 
 if test ${have_libid3tag} = yes; then
 	AC_DEFINE(HAVE_LIBID3TAG, 1, define to 1 you have libid3tag)
-	server_ldflags="$server_ldflags $id3tag_libs -lid3tag -lz"
-	afh_ldflags="$afh_ldflags $id3tag_libs -lid3tag -lz"
-	play_ldflags="$play_ldflags -lz"
-	recv_ldflags="$recv_ldflags $id3tag_libs -lid3tag"
-	play_ldflags="$play_ldflags $id3tag_libs -lid3tag"
 	AC_SUBST(id3tag_cppflags)
-else
-	AC_MSG_WARN([no support for id3v2 tags])
+	AC_SUBST(id3tag_ldflags, "$id3tag_libs -lid3tag -lz")
 fi
 CPPFLAGS="$OLD_CPPFLAGS"
 LDFLAGS="$OLD_LDFLAGS"
@@ -956,23 +583,9 @@ AC_CHECK_HEADER(FLAC/stream_decoder.h, [], have_flac=no)
 AC_CHECK_LIB([FLAC], [FLAC__stream_decoder_init_file], [], have_flac=no, -logg -lm)
 if test "$have_flac" = "yes"; then
 	AC_DEFINE(HAVE_FLAC, 1, define to 1 if you want to build the flacdec filter)
-	all_errlist_objs="$all_errlist_objs flacdec_filter flac_afh"
-	filter_errlist_objs="$filter_errlist_objs flacdec_filter"
-	audiod_errlist_objs="$audiod_errlist_objs flacdec_filter"
-	play_errlist_objs="$play_errlist_objs flacdec_filter flac_afh"
-	afh_errlist_objs="$afh_errlist_objs flac_afh"
-	server_errlist_objs="$server_errlist_objs flac_afh"
-	recv_errlist_objs="$recv_errlist_objs flac_afh"
-	filter_ldflags="$filter_ldflags $flac_libs -lFLAC"
-	audiod_ldflags="$audiod_ldflags $flac_libs -lFLAC"
-	play_ldflags="$play_ldflags $flac_libs -lFLAC"
-	server_ldflags="$server_ldflags $flac_libs -lFLAC"
-	afh_ldflags="$afh_ldflags $flac_libs -lFLAC"
-	recv_ldflags="$recv_ldflags $flac_libs -lFLAC"
-	filters="$filters flacdec"
-	audio_format_handlers="$audio_format_handlers flac"
-	audiod_audio_formats="$audiod_audio_formats flac"
 	AC_SUBST(flac_cppflags)
+	flac_ldflags="$flac_libs -lFLAC"
+	AC_SUBST(flac_ldflags)
 else
 	AC_MSG_WARN([no flac support in para_audiod/para_filter/para_afh/para_server])
 fi
@@ -988,26 +601,9 @@ have_oss="yes"
 msg="=> will not build oss writer"
 
 AC_CHECK_HEADER(sys/soundcard.h, [
-	audiod_errlist_objs="$audiod_errlist_objs oss_write"
-	play_errlist_objs="$play_errlist_objs oss_write"
-	audiod_cmdline_objs="$audiod_cmdline_objs add_cmdline(oss_write)"
-	play_cmdline_objs="$play_cmdline_objs add_cmdline(oss_write)"
-
-	write_errlist_objs="$write_errlist_objs oss_write"
-	write_cmdline_objs="$write_cmdline_objs add_cmdline(oss_write)"
-	fade_errlist_objs="$fade_errlist_objs oss_mix"
-	all_errlist_objs="$all_errlist_objs oss_write oss_mix"
-
-	writers="$writers oss"
-	default_writer="OSS_WRITE"
-	mixers="${mixers}oss "
-	default_mixer="OSS_MIX"
-
 	AC_CHECK_LIB(ossaudio, _oss_ioctl, [
-			audiod_ldflags="$audiod_ldflags -lossaudio"
-			play_ldflags="$play_ldflags -lossaudio"
-			write_ldflags="$write_ldflags -lossaudio"
-			fade_ldflags="$fade_ldflags -lossaudio"
+			oss_ldflags="-lossaudio"
+			AC_SUBST(oss_ldflags)
 		]
 	)
 	],
@@ -1046,67 +642,13 @@ if test "$have_alsa" = "yes"; then
 fi
 
 if test "$have_alsa" = "yes"; then
-	audiod_errlist_objs="$audiod_errlist_objs alsa_write"
-	audiod_cmdline_objs="$audiod_cmdline_objs add_cmdline(alsa_write)"
-	audiod_ldflags="$audiod_ldflags -lasound"
-	play_errlist_objs="$play_errlist_objs alsa_write"
-	play_cmdline_objs="$play_cmdline_objs add_cmdline(alsa_write)"
-	play_ldflags="$play_ldflags -lasound"
-
-	write_errlist_objs="$write_errlist_objs alsa_write"
-	write_cmdline_objs="$write_cmdline_objs add_cmdline(alsa_write)"
-	write_ldflags="$write_ldflags -lasound"
-	fade_errlist_objs="$fade_errlist_objs alsa_mix"
-	fade_ldflags="$fade_ldflags -lasound"
-	all_errlist_objs="$all_errlist_objs alsa_write alsa_mix"
-
-	writers="$writers alsa"
-	default_writer="ALSA_WRITE"
-	mixers="${mixers}alsa "
-	default_mixer="ALSA_MIX"
+	alsa_ldflags="-lasound"
+	AC_SUBST(alsa_ldflags)
 fi
 
 CPPFLAGS="$OLD_CPPFLAGS"
 LDFLAGS="$OLD_LDFLAGS"
 LIBS="$OLD_LIBS"
-########################################################################### fade
-if test -n "$mixers"; then
-	extras="$extras fade"
-	executables="$executables fade"
-	all_errlist_objs="$all_errlist_objs fade"
-	fade_errlist_objs="$fade_errlist_objs fade exec string fd version ggo"
-	fade_cmdline_objs="add_cmdline(fade)"
-	fade_objs="$fade_cmdline_objs $fade_errlist_objs"
-	AC_SUBST(fade_objs, add_dot_o($fade_objs))
-	AC_SUBST(fade_ldflags, $fade_ldflags)
-	AC_DEFINE_UNQUOTED(INIT_FADE_ERRLISTS,
-		objlist_to_errlist($fade_errlist_objs),
-		errors used by para_fade)
-	enum="$(
-		for i in $mixers; do
-			printf "${i}_MIX, " | tr '[a-z]' '[A-Z]'
-		done
-	)"
-	AC_DEFINE_UNQUOTED(MIXER_ENUM, $enum NUM_SUPPORTED_MIXERS,
-		enum of supported mixers)
-	AC_DEFINE_UNQUOTED(DEFAULT_MIXER, $default_mixer,
-		use this mixer if none was specified)
-	names="$(for i in $mixers; do printf \"$i\",' ' ; done)"
-	AC_DEFINE_UNQUOTED(MIXER_NAMES, $names, supported mixer names)
-	inits="$(
-		for i in $mixers; do
-			printf 'extern void '$i'_mix_init(struct mixer *); '
-		done
-	)"
-	AC_DEFINE_UNQUOTED(DECLARE_MIXER_INITS, $inits,
-		init functions of the supported mixers)
-	array="$(for i in $mixers; do printf '{.init = '$i'_mix_init},'; done)"
-	AC_DEFINE_UNQUOTED(MIXER_ARRAY, $array, array of supported mixers)
-	mixer_summary="supported mixers:: $mixers, default: $default_mixer"
-else
-	AC_MSG_WARN([no mixer support])
-	mixer_summary="para_fade: no"
-fi
 ########################################################################### libao
 OLD_CPPFLAGS="$CPPFLAGS"
 OLD_LDFLAGS="$LDFLAGS"
@@ -1151,20 +693,9 @@ if test "$have_ao" = "yes"; then
 	])
 fi
 if test "$have_ao" = "yes"; then
-	all_errlist_objs="$all_errlist_objs ao_write"
-	audiod_errlist_objs="$audiod_errlist_objs ao_write"
-	audiod_cmdline_objs="$audiod_cmdline_objs add_cmdline(ao_write)"
-	audiod_ldflags="$audiod_ldflags -lao -lpthread"
-
-	play_errlist_objs="$play_errlist_objs ao_write"
-	play_cmdline_objs="$play_cmdline_objs add_cmdline(ao_write)"
-	play_ldflags="$play_ldflags -lao -lpthread"
-
-	write_errlist_objs="$write_errlist_objs ao_write"
-	write_cmdline_objs="$write_cmdline_objs add_cmdline(ao_write)"
-	write_ldflags="$write_ldflags $ao_libs -lao -lpthread"
-	writers="$writers ao"
 	AC_SUBST(ao_cppflags)
+	ao_ldflags="$ao_libs -lao -lpthread"
+	AC_SUBST(ao_ldflags)
 fi
 
 CPPFLAGS="$OLD_CPPFLAGS"
@@ -1196,14 +727,8 @@ AC_CHECK_HEADERS([readline/readline.h], [
 	AC_MSG_WARN([readline/readline.h not found, $msg])
 ])
 
-if test "$have_curses" != "yes"; then
-	have_readline="no"
-	AC_MSG_WARN([interactive cli support depends on curses,])
-	AC_MSG_WARN([but no curses lib was detected, $msg])
-fi
-
 if test "$have_readline" = "yes"; then
-	readline_libs="$readline_libs -lreadline"
+	readline_ldflags="$readline_libs -lreadline"
 	AC_SEARCH_LIBS([rl_free_keymap], [readline], [], [have_readline="no"])
 	if test "$have_readline" = "no"; then # try with -lcurses
                 # clear cache
@@ -1211,7 +736,7 @@ if test "$have_readline" = "yes"; then
                 unset ac_cv_search_rl_free_keymap 2> /dev/null
 		AC_SEARCH_LIBS([rl_free_keymap], [readline], [
 			have_readline=yes
-			readline_libs="$readline_libs -lcurses"
+			readline_ldflags="$readline_ldflags -lcurses"
 		], [], [-lcurses])
 	fi
 	if test "$have_readline" = "no"; then # try with -ltermcap
@@ -1220,20 +745,15 @@ if test "$have_readline" = "yes"; then
                 unset ac_cv_search_rl_free_keymap 2> /dev/null
 		AC_SEARCH_LIBS([rl_free_keymap], [readline], [
 			have_readline=yes
-			readline_libs="$readline_libs -ltermcap"
+			readline_ldflags="$readline_ldflags -ltermcap"
 		], [], [-ltermcap])
 	fi
 fi
 
 if test "$have_readline" = "yes"; then
-	all_errlist_objs="$all_errlist_objs interactive"
-	client_errlist_objs="$client_errlist_objs interactive"
-	client_ldflags="$client_ldflags $readline_libs"
-	audioc_errlist_objs="$audioc_errlist_objs buffer_tree interactive sched time"
-	audioc_ldflags="$audioc_ldflags $readline_libs"
-	play_errlist_objs="$play_errlist_objs interactive"
-	play_ldflags="$play_ldflags $readline_libs"
+	:
 	AC_SUBST(readline_cppflags)
+	AC_SUBST(readline_ldflags)
 	AC_DEFINE(HAVE_READLINE, 1, define to 1 to turn on readline support)
 else
 	AC_MSG_WARN([libreadline not found or unusable])
@@ -1264,136 +784,647 @@ AC_CHECK_HEADER(samplerate.h, [], have_samplerate=no)
 AC_CHECK_LIB([samplerate], [src_process], [], have_samplerate=no, [])
 
 if test "$have_samplerate" = "yes"; then
-	all_errlist_objs="$all_errlist_objs resample_filter"
-	filter_errlist_objs="$filter_errlist_objs resample_filter check_wav"
-	filter_cmdline_objs="$filter_cmdline_objs add_cmdline(resample_filter)"
-	audiod_errlist_objs="$audiod_errlist_objs resample_filter check_wav"
-	audiod_cmdline_objs="$audiod_cmdline_objs add_cmdline(resample_filter)"
-	play_errlist_objs="$play_errlist_objs resample_filter check_wav"
-	play_cmdline_objs="$play_cmdline_objs add_cmdline(resample_filter)"
-	filter_ldflags="$filter_ldflags $samplerate_libs -lsamplerate"
-	audiod_ldflags="$audiod_ldflags $samplerate_libs -lsamplerate"
-	play_ldflags="$play_ldflags $samplerate_libs -lsamplerate"
-	filters="$filters resample"
 	AC_SUBST(samplerate_cppflags)
+	samplerate_ldflags="$samplerate_libs -lsamplerate"
+	AC_SUBST(samplerate_ldflags)
 else
 	AC_MSG_WARN([no resample support in para_audiod/para_filter])
 fi
 CPPFLAGS="$OLD_CPPFLAGS"
 LDFLAGS="$OLD_LDFLAGS"
 LIBS="$OLD_LIBS"
-############################################################# error2.h
-AC_MSG_NOTICE(creating error2.h)
-for i in $executables; do
-	echo "$i: "
-	eval echo \$${i}_errlist_objs
-done | ./error2.pl > error2.h
-for obj in $all_errlist_objs; do
-	SS="$SS SS_$(echo $obj | tr 'a-z' 'A-Z'),"
-done
-AC_DEFINE_UNQUOTED(DEFINE_ERRLIST_OBJECT_ENUM,
-	[enum {$SS NUM_SS}],
-	[list of all objects that use the paraslash error facility]
-)
-
-################################################################## status items
-
-status_items="basename status num_played mtime bitrate frequency file_size
-status_flags format score techinfo afs_mode
-attributes_txt decoder_flags audiod_status play_time attributes_bitmap
-offset seconds_total stream_start current_time audiod_uptime image_id
-lyrics_id duration directory lyrics_name image_name path hash channels
-last_played num_chunks chunk_time amplification artist title year album
-comment"
-
-result=
-for i in $status_items; do
-	result="$result SI_$(echo $i | tr 'a-z' 'A-Z'), "
-done
-AC_DEFINE_UNQUOTED(STATUS_ITEM_ENUM, [$result],
-	[enum of all status items])
-
-result=
-for i in $status_items; do
-	result="$result \"$i\", "
-done
-AC_DEFINE_UNQUOTED(STATUS_ITEM_ARRAY, [$result],
-	[char * array of all status items])
-
-AC_DEFINE_UNQUOTED(AUDIO_FORMAT_HANDLERS, "$audio_format_handlers",
-	[formats supported by para_server and para_afh])
-
-AC_SUBST(executables)
+######################################################################### server
+if test \( "$have_openssl" = "yes" -o "$have_gcrypt" = "yes" \) \
+	-a "$have_osl" = "yes" ; then
 
-recv_objs="$recv_cmdline_objs $recv_errlist_objs"
-filter_objs="$filter_cmdline_objs $filter_errlist_objs"
-audiod_objs="$audiod_cmdline_objs $audiod_errlist_objs"
-server_objs="$server_cmdline_objs $server_errlist_objs"
-write_objs="$write_cmdline_objs $write_errlist_objs"
-client_objs="$client_cmdline_objs $client_errlist_objs"
-audioc_objs="$audioc_cmdline_objs $audioc_errlist_objs"
-afh_objs="$afh_cmdline_objs $afh_errlist_objs"
-play_objs="$play_cmdline_objs $play_errlist_objs"
-
-
-AC_SUBST(recv_objs, add_dot_o($recv_objs))
-AC_SUBST(recv_ldflags, $recv_ldflags)
-AC_DEFINE_UNQUOTED(INIT_RECV_ERRLISTS, objlist_to_errlist($recv_errlist_objs),
-	errors used by para_recv)
-
-AC_SUBST(filter_objs, add_dot_o($filter_objs))
-AC_SUBST(filter_ldflags, $filter_ldflags)
-AC_DEFINE_UNQUOTED(INIT_FILTER_ERRLISTS,
+	build_server="yes"
+	executables="$executables server"
+	server_cmdline_objs="server"
+	server_errlist_objs="
+		server
+		afh_common
+		mp3_afh
+		vss
+		command
+		net
+		string
+		signal
+		time
+		daemon
+		http_send
+		close_on_fork
+		mm
+		crypt_common
+		ipc
+		dccp_send
+		fd
+		user_list
+		chunk_queue
+		afs
+		aft
+		mood
+		score
+		attribute
+		blob
+		playlist
+		sched
+		acl
+		send_common
+		udp_send
+		color
+		fec
+		wma_afh
+		wma_common
+		sideband
+		version
+		ggo
+	"
+	if test "$have_openssl" = "yes"; then
+		server_errlist_objs="$server_errlist_objs crypt"
+	fi
+	if test "$have_gcrypt" = "yes"; then
+		server_errlist_objs="$server_errlist_objs gcrypt"
+	fi
+	if test "$have_vorbis" = "yes" || \
+			test "$have_speex" = "yes" || \
+			test "$have_opus" = "yes"; then
+		server_errlist_objs="$server_errlist_objs ogg_afh_common"
+	fi
+	if test "$have_vorbis" = "yes"; then
+		server_errlist_objs="$server_errlist_objs ogg_afh"
+	fi
+	if test "$have_speex" = "yes"; then
+		server_errlist_objs="$server_errlist_objs spx_afh spx_common"
+	fi
+	if test "$have_opus" = "yes"; then
+		server_errlist_objs="$server_errlist_objs opus_afh opus_common"
+	fi
+	if test "$have_faad" = "yes"; then
+		server_errlist_objs="$server_errlist_objs aac_afh aac_common"
+	fi
+	if test "$have_flac" = "yes"; then
+		server_errlist_objs="$server_errlist_objs flac_afh"
+	fi
+	server_objs="add_cmdline($server_cmdline_objs) $server_errlist_objs"
+	AC_SUBST(server_objs, add_dot_o($server_objs))
+	AC_DEFINE_UNQUOTED(INIT_SERVER_ERRLISTS,
+		objlist_to_errlist($server_errlist_objs), errors used by para_server)
+else
+	build_server="no"
+fi
+############################################################# client
+if test "$have_openssl" = "yes" -o "$have_gcrypt" = "yes"; then
+	build_client="yes"
+	executables="$executables client"
+	client_cmdline_objs="client"
+	client_errlist_objs="
+		client
+		net
+		string
+		fd
+		sched
+		stdin
+		stdout
+		time
+		sideband
+		client_common
+		buffer_tree
+		crypt_common
+		version
+		ggo
+	"
+	if test "$have_openssl" = "yes"; then
+		client_errlist_objs="$client_errlist_objs crypt"
+	fi
+	if test "$have_gcrypt" = "yes"; then
+		client_errlist_objs="$client_errlist_objs gcrypt"
+	fi
+	if test "$have_readline" = "yes"; then
+		client_errlist_objs="$client_errlist_objs interactive"
+	fi
+	client_objs="add_cmdline($client_cmdline_objs) $client_errlist_objs"
+	AC_SUBST(client_objs, add_dot_o($client_objs))
+	AC_DEFINE_UNQUOTED(INIT_CLIENT_ERRLISTS,
+		objlist_to_errlist($client_errlist_objs), errors used by para_client)
+else
+	build_client="no"
+fi
+############################################################# audiod
+if test "$have_openssl" = "yes" -o "$have_gcrypt" = "yes"; then
+	build_audiod="yes"
+	executables="$executables audiod"
+	audiod_audio_formats="wma"
+	audiod_cmdline_objs="$audiod_cmdline_objs
+		audiod
+		compress_filter
+		http_recv
+		dccp_recv
+		file_write
+		client
+		amp_filter
+		udp_recv
+		prebuffer_filter
+	"
+	audiod_errlist_objs="$audiod_errlist_objs
+		audiod
+		signal
+		string
+		daemon
+		stat
+		net
+		crypt_common
+		sideband
+		time
+		grab_client
+		filter_common
+		wav_filter
+		compress_filter
+		amp_filter
+		http_recv
+		dccp_recv
+		recv_common
+		fd
+		sched
+		write_common
+		file_write
+		audiod_command
+		fecdec_filter
+		client_common
+		ggo
+		udp_recv
+		color
+		fec
+		prebuffer_filter
+		version
+		bitstream
+		imdct
+		wma_common
+		wmadec_filter
+		buffer_tree
+	"
+	if test "$have_openssl" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs crypt"
+	fi
+	if test "$have_gcrypt" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs gcrypt"
+	fi
+	if test "$have_core_audio" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs osx_write ipc"
+		audiod_cmdline_objs="$audiod_cmdline_objs osx_write.cmdline"
+	fi
+	if test "$have_vorbis" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs oggdec_filter"
+		audiod_audio_formats="$audiod_audio_formats ogg"
+	fi
+	if test "$have_speex" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs spxdec_filter spx_common"
+		audiod_audio_formats="$audiod_audio_formats spx"
+	fi
+	if test "$have_opus" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs opusdec_filter opus_common"
+		audiod_audio_formats="$audiod_audio_formats opus"
+	fi
+	if test "$have_faad" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs aacdec_filter aac_common"
+		audiod_audio_formats="$audiod_audio_formats aac"
+	fi
+	if test "$have_mad" = "yes"; then
+		audiod_audio_formats="$audiod_audio_formats mp3"
+		audiod_cmdline_objs="$audiod_cmdline_objs mp3dec_filter"
+		audiod_errlist_objs="$audiod_errlist_objs mp3dec_filter"
+	fi
+	if test "$have_flac" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs flacdec_filter"
+		audiod_audio_formats="$audiod_audio_formats flac"
+	fi
+	if test "$have_oss" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs oss_write"
+		audiod_cmdline_objs="$audiod_cmdline_objs oss_write"
+	fi
+	if test "$have_alsa" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs alsa_write"
+		audiod_cmdline_objs="$audiod_cmdline_objs alsa_write"
+	fi
+	if test "$have_ao" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs ao_write"
+		audiod_cmdline_objs="$audiod_cmdline_objs ao_write"
+	fi
+	if test "$have_samplerate" = "yes"; then
+		audiod_errlist_objs="$audiod_errlist_objs resample_filter check_wav"
+		audiod_cmdline_objs="$audiod_cmdline_objs resample_filter"
+	fi
+	audiod_objs="add_cmdline($audiod_cmdline_objs) $audiod_errlist_objs"
+	AC_SUBST(audiod_objs, add_dot_o($audiod_objs))
+	AC_DEFINE_UNQUOTED(INIT_AUDIOD_ERRLISTS, objlist_to_errlist($audiod_errlist_objs),
+		errors used by para_audiod)
+
+	enum="$(for i in $audiod_audio_formats; do printf "AUDIO_FORMAT_${i}, " | tr '[a-z]' '[A-Z]'; done)"
+	AC_DEFINE_UNQUOTED(AUDIOD_AUDIO_FORMATS_ENUM, $enum NUM_AUDIO_FORMATS,
+		enum of audio formats supported by audiod)
+	names="$(for i in $audiod_audio_formats; do printf \"$i\",' ' ; done)"
+	AC_DEFINE_UNQUOTED(AUDIOD_AUDIO_FORMAT_ARRAY, $names, array of audio formats supported by audiod)
+else
+	build_audiod="no"
+fi
+########################################################################### fade
+if test "$have_oss" = "yes" -o "$have_alsa" = "yes"; then
+	build_fade="yes"
+	executables="$executables fade"
+	fade_cmdline_objs="fade"
+	fade_errlist_objs="fade exec string fd version ggo"
+	if test "$have_oss" = "yes"; then
+		fade_errlist_objs="$fade_errlist_objs oss_mix"
+		mixers="${mixers}oss "
+		default_mixer="OSS_MIX"
+	fi
+	if test "$have_alsa" = "yes"; then
+		fade_errlist_objs="$fade_errlist_objs alsa_mix"
+		mixers="${mixers}alsa "
+		default_mixer="ALSA_MIX"
+	fi
+	fade_objs="add_cmdline($fade_cmdline_objs) $fade_errlist_objs"
+	AC_SUBST(fade_objs, add_dot_o($fade_objs))
+	AC_DEFINE_UNQUOTED(INIT_FADE_ERRLISTS,
+		objlist_to_errlist($fade_errlist_objs),
+		errors used by para_fade)
+	enum="$(
+		for i in $mixers; do
+			printf "${i}_MIX, " | tr '[a-z]' '[A-Z]'
+		done
+	)"
+	AC_DEFINE_UNQUOTED(MIXER_ENUM, $enum NUM_SUPPORTED_MIXERS,
+		enum of supported mixers)
+	AC_DEFINE_UNQUOTED(DEFAULT_MIXER, $default_mixer,
+		use this mixer if none was specified)
+	names="$(for i in $mixers; do printf \"$i\",' ' ; done)"
+	AC_DEFINE_UNQUOTED(MIXER_NAMES, $names, supported mixer names)
+	inits="$(
+		for i in $mixers; do
+			printf 'extern void '$i'_mix_init(struct mixer *); '
+		done
+	)"
+	AC_DEFINE_UNQUOTED(DECLARE_MIXER_INITS, $inits,
+		init functions of the supported mixers)
+	array="$(for i in $mixers; do printf '{.init = '$i'_mix_init},'; done)"
+	AC_DEFINE_UNQUOTED(MIXER_ARRAY, $array, array of supported mixers)
+else
+	build_fade="no"
+	AC_MSG_WARN([no mixer support])
+fi
+########################################################################### gui
+if test "$have_curses" = "yes"; then
+	build_gui="yes"
+	executables="$executables gui"
+	gui_cmdline_objs="gui"
+	gui_errlist_objs="
+		exec
+		signal
+		string
+		stat
+		ringbuffer
+		fd
+		gui
+		gui_theme
+		time
+		version
+		ggo
+	"
+	gui_objs="add_cmdline($gui_cmdline_objs) $gui_errlist_objs"
+	AC_SUBST(gui_objs, add_dot_o($gui_objs))
+	AC_DEFINE_UNQUOTED(INIT_GUI_ERRLISTS,
+		objlist_to_errlist($gui_errlist_objs), errors used by para_gui)
+else
+	build_gui="no"
+	AC_MSG_WARN([no curses lib, cannot build para_gui])
+fi
+######################################################################## filter
+filters="
+	compress
+	wav
+	amp
+	fecdec
+	wmadec
+	prebuffer
+"
+filter_errlist_objs="
+	filter_common
+	wav_filter
+	compress_filter
+	filter
+	string
+	stdin
+	stdout
+	sched
+	fd
+	amp_filter
+	ggo
+	fecdec_filter
+	fec
+	version
+	prebuffer_filter
+	time
+	bitstream
+	imdct
+	wma_common
+	wmadec_filter
+	buffer_tree
+	net
+"
+filter_cmdline_objs="
+	filter
+	compress_filter
+	amp_filter
+	prebuffer_filter
+"
+
+if test "$have_vorbis" = "yes"; then
+	filters="$filters oggdec"
+	filter_errlist_objs="$filter_errlist_objs oggdec_filter"
+fi
+if test "$have_speex" = "yes"; then
+	filters="$filters spxdec"
+	filter_errlist_objs="$filter_errlist_objs spxdec_filter spx_common"
+fi
+if test "$have_opus" = "yes"; then
+	filters="$filters opusdec"
+	filter_errlist_objs="$filter_errlist_objs opusdec_filter opus_common"
+fi
+if test "$have_faad" = "yes"; then
+	filter_errlist_objs="$filter_errlist_objs aacdec_filter aac_common"
+	filters="$filters aacdec"
+fi
+if test "$have_mad" = "yes"; then
+	filter_cmdline_objs="$filter_cmdline_objs mp3dec_filter"
+	filter_errlist_objs="$filter_errlist_objs mp3dec_filter"
+	filters="$filters mp3dec"
+fi
+if test "$have_flac" = "yes"; then
+	filter_errlist_objs="$filter_errlist_objs flacdec_filter"
+	filters="$filters flacdec"
+fi
+if test "$have_samplerate" = "yes"; then
+	filter_errlist_objs="$filter_errlist_objs resample_filter check_wav"
+	filter_cmdline_objs="$filter_cmdline_objs resample_filter"
+	filters="$filters resample"
+fi
+filter_objs="add_cmdline($filter_cmdline_objs) $filter_errlist_objs"
+
+AC_SUBST(filter_objs, add_dot_o($filter_objs))
+AC_DEFINE_UNQUOTED(INIT_FILTER_ERRLISTS,
 	objlist_to_errlist($filter_errlist_objs), errors used by para_filter)
 
-AC_SUBST(audiod_objs, add_dot_o($audiod_objs))
-AC_SUBST(audiod_ldflags, $audiod_ldflags)
-AC_DEFINE_UNQUOTED(INIT_AUDIOD_ERRLISTS, objlist_to_errlist($audiod_errlist_objs),
-	errors used by para_audiod)
+enum="$(for i in $filters; do printf "${i}_FILTER, " | tr '[a-z]' '[A-Z]'; done)"
+AC_DEFINE_UNQUOTED(FILTER_ENUM, $enum NUM_SUPPORTED_FILTERS,
+	enum of supported filters)
+inits="$(for i in $filters; do printf 'extern void '$i'_filter_init(struct filter *f); '; done)"
+AC_DEFINE_UNQUOTED(DECLARE_FILTER_INITS, $inits, init functions of the supported filters)
+array="$(for i in $filters; do printf '{.name = "'$i'", .init = '$i'_filter_init},'; done)"
+AC_DEFINE_UNQUOTED(FILTER_ARRAY, $array, array of supported filters)
+########################################################################## recv
+recv_cmdline_objs="
+	recv
+	http_recv
+	dccp_recv
+	udp_recv
+	afh_recv
+"
+
+recv_errlist_objs="
+	http_recv
+	recv_common
+	recv
+	time
+	string
+	net
+	dccp_recv
+	fd
+	sched
+	stdout
+	ggo
+	udp_recv
+	buffer_tree
+	afh_recv
+	afh_common
+	wma_afh
+	wma_common
+	mp3_afh
+	version
+"
+if test "$have_vorbis" = "yes" || \
+		test "$have_speex" = "yes" || \
+		test "$have_opus" = "yes"; then
+	recv_errlist_objs="$recv_errlist_objs ogg_afh_common"
+fi
+if test "$have_vorbis" = "yes"; then
+	recv_errlist_objs="$recv_errlist_objs ogg_afh"
+fi
+if test "$have_speex" = "yes"; then
+	recv_errlist_objs="$recv_errlist_objs spx_afh spx_common"
+fi
+if test "$have_opus" = "yes"; then
+	recv_errlist_objs="$recv_errlist_objs opus_afh opus_common"
+fi
+if test "$have_faad" = "yes"; then
+	recv_errlist_objs="$recv_errlist_objs aac_afh aac_common"
+fi
+if test "$have_flac" = "yes"; then
+	recv_errlist_objs="$recv_errlist_objs flac_afh"
+fi
+recv_objs="add_cmdline($recv_cmdline_objs) $recv_errlist_objs"
+AC_SUBST(recv_objs, add_dot_o($recv_objs))
+AC_DEFINE_UNQUOTED(INIT_RECV_ERRLISTS, objlist_to_errlist($recv_errlist_objs),
+	errors used by para_recv)
+########################################################################### afh
+audio_format_handlers="mp3 wma"
+afh_cmdline_objs="afh"
+afh_errlist_objs="
+	afh
+	string
+	fd
+	mp3_afh
+	afh_common
+	time
+	wma_afh
+	wma_common
+	version
+	ggo
+"
+if test "$have_vorbis" = "yes" || \
+		test "$have_speex" = "yes" || \
+		test "$have_opus" = "yes"; then
+	afh_errlist_objs="$afh_errlist_objs ogg_afh_common"
+fi
+if test "$have_vorbis" = "yes"; then
+	afh_errlist_objs="$afh_errlist_objs ogg_afh"
+	audio_format_handlers="$audio_format_handlers ogg"
+fi
+if test "$have_speex" = "yes"; then
+	afh_errlist_objs="$afh_errlist_objs spx_afh spx_common"
+	audio_format_handlers="$audio_format_handlers spx"
+fi
+if test "$have_opus" = "yes"; then
+	afh_errlist_objs="$afh_errlist_objs opus_afh opus_common"
+fi
+if test "$have_faad" = "yes"; then
+	afh_errlist_objs="$afh_errlist_objs aac_common aac_afh"
+	audio_format_handlers="$audio_format_handlers aac"
+fi
+if test "$have_flac" = "yes"; then
+	afh_errlist_objs="$afh_errlist_objs flac_afh"
+	audio_format_handlers="$audio_format_handlers flac"
+fi
 
-AC_SUBST(server_objs, add_dot_o($server_objs))
-AC_SUBST(server_ldflags, $server_ldflags)
-AC_DEFINE_UNQUOTED(INIT_SERVER_ERRLISTS,
-	objlist_to_errlist($server_errlist_objs), errors used by para_server)
+afh_objs="add_cmdline($afh_cmdline_objs) $afh_errlist_objs"
 
 AC_SUBST(afh_objs, add_dot_o($afh_objs))
-AC_SUBST(afh_ldflags, $afh_ldflags)
 AC_DEFINE_UNQUOTED(INIT_AFH_ERRLISTS,
 	objlist_to_errlist($afh_errlist_objs), errors used by para_afh)
+########################################################################## play
+play_errlist_objs="
+	play
+	fd
+	sched
+	ggo
+	buffer_tree
+	time
+	string
+	net
+	afh_recv
+	afh_common
+	wma_afh
+	wma_common
+	mp3_afh
+	recv_common
+	udp_recv
+	http_recv
+	dccp_recv
+	filter_common
+	fec
+	bitstream
+	imdct
+	wav_filter
+	compress_filter
+	amp_filter
+	prebuffer_filter
+	fecdec_filter
+	wmadec_filter
+	write_common
+	file_write
+	version
+"
+play_cmdline_objs="
+	http_recv
+	dccp_recv
+	udp_recv
+	afh_recv
+	compress_filter
+	amp_filter
+	prebuffer_filter
+	file_write
+	play
+"
+if test "$have_core_audio" = "yes"; then
+	play_errlist_objs="$play_errlist_objs osx_write ipc"
+	play_cmdline_objs="$play_cmdline_objs osx_write.cmdline"
+fi
+if test "$have_vorbis" = "yes" || \
+		test "$have_speex" = "yes" || \
+		test "$have_opus" = "yes"; then
+	play_errlist_objs="$play_errlist_objs ogg_afh_common"
+fi
+if test "$have_vorbis" = "yes"; then
+	play_errlist_objs="$play_errlist_objs oggdec_filter ogg_afh"
+fi
+if test "$have_speex" = "yes"; then
+	play_errlist_objs="$play_errlist_objs spxdec_filter spx_afh spx_common"
+fi
+if test "$have_opus" = "yes"; then
+	play_errlist_objs="$play_errlist_objs opusdec_filter opus_afh opus_common"
+fi
+if test "$have_faad" = "yes"; then
+	play_errlist_objs="$play_errlist_objs aacdec_filter aac_afh aac_common"
+fi
+if test "$have_mad" = "yes"; then
+	play_cmdline_objs="$play_cmdline_objs mp3dec_filter"
+	play_errlist_objs="$play_errlist_objs mp3dec_filter"
+fi
+if test "$have_flac" = "yes"; then
+	play_errlist_objs="$play_errlist_objs flacdec_filter flac_afh"
+fi
+if test "$have_oss" = "yes"; then
+	play_errlist_objs="$play_errlist_objs oss_write"
+	play_cmdline_objs="$play_cmdline_objs oss_write"
+fi
+if test "$have_alsa" = "yes"; then
+	play_errlist_objs="$play_errlist_objs alsa_write"
+	play_cmdline_objs="$play_cmdline_objs alsa_write"
+fi
+if test "$have_ao" = "yes"; then
+	play_errlist_objs="$play_errlist_objs ao_write"
+	play_cmdline_objs="$play_cmdline_objs ao_write"
+fi
+if test "$have_readline" = "yes"; then
+	play_errlist_objs="$play_errlist_objs interactive"
+fi
+if test "$have_samplerate" = "yes"; then
+	play_errlist_objs="$play_errlist_objs resample_filter check_wav"
+	play_cmdline_objs="$play_cmdline_objs resample_filter"
+fi
 
-AC_SUBST(write_objs, add_dot_o($write_objs))
-AC_SUBST(write_ldflags, $write_ldflags)
-AC_DEFINE_UNQUOTED(INIT_WRITE_ERRLISTS,
-	objlist_to_errlist($write_errlist_objs), errors used by para_write)
-
-AC_SUBST(client_objs, add_dot_o($client_objs))
-AC_SUBST(client_ldflags, $client_ldflags)
-AC_DEFINE_UNQUOTED(INIT_CLIENT_ERRLISTS,
-	objlist_to_errlist($client_errlist_objs), errors used by para_client)
-
-AC_SUBST(audioc_objs, add_dot_o($audioc_objs))
-AC_SUBST(audioc_ldflags, $audioc_ldflags)
-AC_DEFINE_UNQUOTED(INIT_AUDIOC_ERRLISTS,
-	objlist_to_errlist($audioc_errlist_objs), errors used by para_audioc)
-
-AC_SUBST(gui_objs, add_dot_o($gui_objs))
-AC_SUBST(gui_ldflags, $gui_ldflags)
-AC_DEFINE_UNQUOTED(INIT_GUI_ERRLISTS,
-	objlist_to_errlist($gui_errlist_objs), errors used by para_gui)
-
+play_objs="add_cmdline($play_cmdline_objs) $play_errlist_objs"
 AC_SUBST(play_objs, add_dot_o($play_objs))
-AC_SUBST(play_ldflags, $play_ldflags)
 AC_DEFINE_UNQUOTED(INIT_PLAY_ERRLISTS,
 	objlist_to_errlist($play_errlist_objs), errors used by para_play)
+######################################################################### write
+write_cmdline_objs="
+	write
+	file_write
+"
+write_errlist_objs="
+	write
+	write_common
+	file_write
+	time
+	fd
+	string
+	sched
+	stdin
+	buffer_tree
+	ggo
+	check_wav
+	version
+"
+writers="file"
+default_writer="FILE_WRITE"
 
-enum="$(for i in $filters; do printf "${i}_FILTER, " | tr '[a-z]' '[A-Z]'; done)"
-AC_DEFINE_UNQUOTED(FILTER_ENUM, $enum NUM_SUPPORTED_FILTERS,
-	enum of supported filters)
-inits="$(for i in $filters; do printf 'extern void '$i'_filter_init(struct filter *f); '; done)"
-AC_DEFINE_UNQUOTED(DECLARE_FILTER_INITS, $inits, init functions of the supported filters)
-array="$(for i in $filters; do printf '{.name = "'$i'", .init = '$i'_filter_init},'; done)"
-AC_DEFINE_UNQUOTED(FILTER_ARRAY, $array, array of supported filters)
-
+if test "$have_core_audio" = "yes"; then
+	write_errlist_objs="$write_errlist_objs osx_write ipc"
+	write_cmdline_objs="$write_cmdline_objs osx_write.cmdline"
+	writers="$writers osx"
+	default_writer="OSX_WRITE"
+fi
+if test "$have_ao" = "yes"; then
+	write_errlist_objs="$write_errlist_objs ao_write"
+	write_cmdline_objs="$write_cmdline_objs ao_write"
+	writers="$writers ao"
+	default_writer="AO_WRITE"
+fi
+if test "$have_oss" = "yes"; then
+	write_errlist_objs="$write_errlist_objs oss_write"
+	write_cmdline_objs="$write_cmdline_objs oss_write"
+	writers="$writers oss"
+	default_writer="OSS_WRITE"
+fi
+if test "$have_alsa" = "yes"; then
+	write_errlist_objs="$write_errlist_objs alsa_write"
+	write_cmdline_objs="$write_cmdline_objs alsa_write"
+	writers="$writers alsa"
+	default_writer="ALSA_WRITE"
+fi
+write_objs="add_cmdline($write_cmdline_objs) $write_errlist_objs"
+AC_SUBST(write_objs, add_dot_o($write_objs))
+AC_DEFINE_UNQUOTED(INIT_WRITE_ERRLISTS,
+	objlist_to_errlist($write_errlist_objs), errors used by para_write)
 enum="$(for i in $writers; do printf "${i}_WRITE, " | tr '[a-z]' '[A-Z]'; done)"
 AC_DEFINE_UNQUOTED(WRITER_ENUM, $enum NUM_SUPPORTED_WRITERS,
 	enum of supported writers)
@@ -1404,12 +1435,101 @@ inits="$(for i in $writers; do printf 'extern void '$i'_write_init(struct writer
 AC_DEFINE_UNQUOTED(DECLARE_WRITER_INITS, $inits, init functions of the supported writers)
 array="$(for i in $writers; do printf '{.init = '$i'_write_init},'; done)"
 AC_DEFINE_UNQUOTED(WRITER_ARRAY, $array, array of supported writers)
+######################################################################## audioc
+audioc_cmdline_objs="audioc"
+audioc_errlist_objs="
+	audioc
+	string
+	net
+	fd
+	version
+	ggo
+"
+if test "$have_readline" = "yes"; then
+	audioc_errlist_objs="$audioc_errlist_objs
+		buffer_tree
+		interactive
+		sched
+		time
+	"
+fi
+audioc_objs="add_cmdline($audioc_cmdline_objs) $audioc_errlist_objs"
+AC_SUBST(audioc_objs, add_dot_o($audioc_objs))
+AC_DEFINE_UNQUOTED(INIT_AUDIOC_ERRLISTS,
+	objlist_to_errlist($audioc_errlist_objs), errors used by para_audioc)
+############################################################# error2.h
+# these are always built
+all_errlist_objs="
+	$recv_errlist_objs
+	$filter_errlist_objs
+	$audioc_errlist_objs
+	$write_errlist_objs
+	$afh_errlist_objs
+	$play_errlist_objs
+"
 
-enum="$(for i in $audiod_audio_formats; do printf "AUDIO_FORMAT_${i}, " | tr '[a-z]' '[A-Z]'; done)"
-AC_DEFINE_UNQUOTED(AUDIOD_AUDIO_FORMATS_ENUM, $enum NUM_AUDIO_FORMATS,
-	enum of audio formats supported by audiod)
-names="$(for i in $audiod_audio_formats; do printf \"$i\",' ' ; done)"
-AC_DEFINE_UNQUOTED(AUDIOD_AUDIO_FORMAT_ARRAY, $names, array of audio formats supported by audiod)
+# optional executables
+if test "$build_server" = "yes"; then
+	all_errlist_objs="$all_errlist_objs $server_errlist_objs"
+fi
+if test "$build_gui" = "yes"; then
+	all_errlist_objs="$all_errlist_objs $gui_errlist_objs"
+fi
+if test "$build_fade" = "yes"; then
+	all_errlist_objs="$all_errlist_objs $fade_errlist_objs"
+fi
+if test "$build_client" = "yes"; then
+	all_errlist_objs="$all_errlist_objs $client_errlist_objs"
+fi
+if test "$build_audiod" = "yes"; then
+	all_errlist_objs="$all_errlist_objs $audiod_errlist_objs"
+fi
+
+all_errlist_objs="$(echo $all_errlist_objs | tr ' ' '\n' | sort | uniq)"
+
+object_executable_matrix=
+for i in $executables; do
+	eval objs=\$${i}_errlist_objs
+	object_executable_matrix="$object_executable_matrix $i: $objs"
+done
+# use echo to replace newlines by space
+AC_SUBST(object_executable_matrix, $(echo $object_executable_matrix))
+
+for obj in $all_errlist_objs; do
+	SS="$SS SS_$(echo $obj | tr 'a-z' 'A-Z'),"
+done
+AC_DEFINE_UNQUOTED(DEFINE_ERRLIST_OBJECT_ENUM,
+	[enum {$SS NUM_SS}],
+	[list of all objects that use the paraslash error facility]
+)
+################################################################## status items
+
+status_items="basename status num_played mtime bitrate frequency file_size
+status_flags format score techinfo afs_mode
+attributes_txt decoder_flags audiod_status play_time attributes_bitmap
+offset seconds_total stream_start current_time audiod_uptime image_id
+lyrics_id duration directory lyrics_name image_name path hash channels
+last_played num_chunks chunk_time amplification artist title year album
+comment"
+
+result=
+for i in $status_items; do
+	result="$result SI_$(echo $i | tr 'a-z' 'A-Z'), "
+done
+AC_DEFINE_UNQUOTED(STATUS_ITEM_ENUM, [$result],
+	[enum of all status items])
+
+result=
+for i in $status_items; do
+	result="$result \"$i\", "
+done
+AC_DEFINE_UNQUOTED(STATUS_ITEM_ARRAY, [$result],
+	[char * array of all status items])
+
+AC_DEFINE_UNQUOTED(AUDIO_FORMAT_HANDLERS, "$audio_format_handlers",
+	[formats supported by para_server and para_afh])
+
+AC_SUBST(executables)
 
 AC_OUTPUT
 AC_MSG_NOTICE([
@@ -1419,8 +1539,13 @@ unix socket credentials: $have_ucred
 readline (interactive CLIs): $have_readline
 audio formats handlers: $audio_format_handlers
 id3 version2 support: $have_libid3tag
-filters: $filters
+filters: $(echo $filters)
 writers: $writers
-optional executables: $extras
-$mixer_summary
+
+para_fade: $build_fade
+para_server: $build_server
+para_gui: $build_gui
+para_fade: $build_fade
+para_client: $build_client
+para_audiod: $build_audiod
 ])
diff --git a/error2.c b/error2.c
new file mode 100644
index 00000000..630d4c71
--- /dev/null
+++ b/error2.c
@@ -0,0 +1,151 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <assert.h>
+#include <inttypes.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <ctype.h>
+
+// #define DEBUG
+#ifdef DEBUG
+	#define log(fmt, ...) fprintf(stderr, "%s: " fmt, __FUNCTION__, ## __VA_ARGS__)
+#else
+	#define log(...) do {;} while (0)
+#endif /* DEBUG*/
+
+#define HASH_TABLE_BITS 8
+#define HASH_TABLE_SIZE (1 << HASH_TABLE_BITS)
+
+/* number of executables seen so far */
+static int num_exe;
+
+struct hash_table_entry {
+	char *key;
+	/* only used for objecs, not for executables */
+	unsigned exe_bitmask;
+};
+
+static struct hash_table_entry exe_table[HASH_TABLE_SIZE];
+static struct hash_table_entry obj_table[HASH_TABLE_SIZE];
+
+/* no need for anything sophisticated here */
+static int hash_token(const char *tok)
+{
+	uint32_t tmp = 31415927;
+	const uint8_t *src = (typeof(src))tok;
+
+	for (; *src; src++) {
+		tmp *= 27182817;
+		tmp += *tok;
+	}
+	return tmp % HASH_TABLE_SIZE;
+}
+
+static inline bool slot_empty(int idx, struct hash_table_entry *table)
+{
+	return table[idx].key == NULL;
+}
+
+static char *safe_strdup(const char *str)
+{
+	char *result = strdup(str);
+	if (result)
+		return result;
+	errno = ENOMEM;
+	perror("strdup");
+	exit(EXIT_FAILURE);
+}
+
+static bool lookup(const char *tok, struct hash_table_entry *table, int *idx)
+{
+	int i, h = hash_token(tok);
+
+	for (i = 0; i < HASH_TABLE_SIZE; i++) {
+		*idx = (h + i) % HASH_TABLE_SIZE;
+		if (slot_empty(*idx, table))
+			return false;
+		if (!strcmp(table[*idx].key, tok))
+			return true;
+	}
+	log ("hash table full !?\n");
+	exit(EXIT_FAILURE);
+}
+
+static bool insert(const char *tok, struct hash_table_entry *table, int *idx)
+{
+	if (lookup(tok, table, idx))
+		return false; /* not inserted */
+	table[*idx].key = safe_strdup(tok);
+	return true;
+}
+
+static void process_token(char *tok)
+{
+	int idx;
+	size_t len = strlen(tok);
+
+	assert(len > 0);
+	if (tok[len - 1] == ':') {
+		tok[len - 1] = '\0';
+		if (insert(tok, exe_table, &idx)) { /* new exe */
+			log("exe #%d: '%s', idx: %d\n", num_exe, tok, idx);
+			num_exe++;
+		}
+	} else {
+		if (num_exe == 0) {
+			log("invalid input\n");
+			exit(EXIT_FAILURE);
+		}
+		insert(tok, obj_table, &idx);
+		obj_table[idx].exe_bitmask |= (1 << (num_exe - 1));
+	}
+}
+
+static void print_ss_enum(int idx)
+{
+	char *s = obj_table[idx].key;
+
+	printf("SS_ENUM(");
+	for (; *s; s++)
+		printf("%c", toupper(*s));
+	printf(");\n");
+}
+
+static void dump_bipolar(void)
+{
+	int i, j;
+
+	for (i = 0; i < HASH_TABLE_SIZE; i++) {
+		if (slot_empty(i, obj_table))
+			continue;
+		printf("#ifdef MAIN_INPUT_FILE_IS_%s\n", obj_table[i].key);
+		for (j = 0; j < HASH_TABLE_SIZE; j++) {
+			unsigned mi, mj;
+			if (slot_empty(j, obj_table))
+				continue;
+			mi = obj_table[i].exe_bitmask;
+			mj = obj_table[j].exe_bitmask;
+			if ((mi & mj) == mi)
+				print_ss_enum(j);
+		}
+		printf("#endif\n");
+	}
+}
+
+int main(void)
+{
+	int ret;
+
+	for (;;) {
+		char tok[100];
+		ret = scanf("%96s", tok);
+		if (ret != 1)
+			break;
+		process_token(tok);
+	}
+	dump_bipolar();
+	return 0;
+}
diff --git a/error2.pl b/error2.pl
deleted file mode 100755
index 78ff2c56..00000000
--- a/error2.pl
+++ /dev/null
@@ -1,58 +0,0 @@
-#!/usr/bin/env perl
-
-use warnings;
-use strict;
-
-my %matrix;
-my @executables;
-my %objects;
-
-sub make_matrix
-{
-	my ($line, $e, @fields, $field);
-
-	while (defined($line = <>)) {
-		chomp($line);
-		if ($line =~ "^ *\$") {
-			next;
-		}
-		@fields = split(" ", $line);
-		while (defined(($field = shift(@fields)))) {
-			if ($field =~ ":\$") {
-				$field =~ s/://;
-				$e = $field;
-				push(@executables, $e);
-				next;
-			}
-			$matrix{$e . ">" . $field} = 1;
-			$objects{$field} = 1;
-		}
-	}
-}
-
-sub print_safe_objects
-{
-	my @objs = keys(%objects);
-	my ($o1, $o2, $e);
-
-	foreach $o1 (@objs) {
-		print("#ifdef MAIN_INPUT_FILE_IS_$o1\n");
-		O2: foreach $o2 (@objs) {
-			foreach $e (@executables) {
-				if (!defined($matrix{$e . ">" . $o1})) {
-					next;
-				}
-				if (defined($matrix{$e . ">" . $o2})) {
-					next;
-				}
-				next O2;
-			}
-			$_ = $o2;
-			tr/a-z/A-Z/;
-			printf("SS_ENUM(%s);\n", $_);
-		}
-		print("#endif\n");
-	}
-}
-make_matrix;
-print_safe_objects;
diff --git a/install-sh b/install-sh
deleted file mode 100755
index 6ce63b9f..00000000
--- a/install-sh
+++ /dev/null
@@ -1,294 +0,0 @@
-#!/bin/sh
-#
-# install - install a program, script, or datafile
-#
-# This originates from X11R5 (mit/util/scripts/install.sh), which was
-# later released in X11R6 (xc/config/util/install.sh) with the
-# following copyright and license.
-#
-# Copyright (C) 1994 X Consortium
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
-# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#
-# Except as contained in this notice, the name of the X Consortium shall not
-# be used in advertising or otherwise to promote the sale, use or other deal-
-# ings in this Software without prior written authorization from the X Consor-
-# tium.
-#
-#
-# FSF changes to this file are in the public domain.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# `make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch.  It can only install one file at a time, a restriction
-# shared with many OS's install programs.
-
-
-# set DOITPROG to echo to test this script
-
-# Don't use :- since 4.3BSD and earlier shells don't like it.
-doit="${DOITPROG-}"
-
-
-# put in absolute paths if you don't have them in your path; or use env. vars.
-
-mvprog="${MVPROG-mv}"
-cpprog="${CPPROG-cp}"
-chmodprog="${CHMODPROG-chmod}"
-chownprog="${CHOWNPROG-chown}"
-chgrpprog="${CHGRPPROG-chgrp}"
-stripprog="${STRIPPROG-strip}"
-rmprog="${RMPROG-rm}"
-mkdirprog="${MKDIRPROG-mkdir}"
-
-transformbasename=""
-transform_arg=""
-instcmd="$mvprog"
-chmodcmd="$chmodprog 0755"
-chowncmd=""
-chgrpcmd=""
-stripcmd=""
-rmcmd="$rmprog -f"
-mvcmd="$mvprog"
-src=""
-dst=""
-dir_arg=""
-
-while [ x"$1" != x ]; do
-    case $1 in
-	-c) instcmd=$cpprog
-	    shift
-	    continue;;
-
-	-d) dir_arg=true
-	    shift
-	    continue;;
-
-	-m) chmodcmd="$chmodprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-o) chowncmd="$chownprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-g) chgrpcmd="$chgrpprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-s) stripcmd=$stripprog
-	    shift
-	    continue;;
-
-	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
-	    shift
-	    continue;;
-
-	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
-	    shift
-	    continue;;
-
-	*)  if [ x"$src" = x ]
-	    then
-		src=$1
-	    else
-		# this colon is to work around a 386BSD /bin/sh bug
-		:
-		dst=$1
-	    fi
-	    shift
-	    continue;;
-    esac
-done
-
-if [ x"$src" = x ]
-then
-	echo "$0: no input file specified" >&2
-	exit 1
-else
-	:
-fi
-
-if [ x"$dir_arg" != x ]; then
-	dst=$src
-	src=""
-
-	if [ -d "$dst" ]; then
-		instcmd=:
-		chmodcmd=""
-	else
-		instcmd=$mkdirprog
-	fi
-else
-
-# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
-# might cause directories to be created, which would be especially bad
-# if $src (and thus $dsttmp) contains '*'.
-
-	if [ -f "$src" ] || [ -d "$src" ]
-	then
-		:
-	else
-		echo "$0: $src does not exist" >&2
-		exit 1
-	fi
-
-	if [ x"$dst" = x ]
-	then
-		echo "$0: no destination specified" >&2
-		exit 1
-	else
-		:
-	fi
-
-# If destination is a directory, append the input filename; if your system
-# does not like double slashes in filenames, you may need to add some logic
-
-	if [ -d "$dst" ]
-	then
-		dst=$dst/`basename "$src"`
-	else
-		:
-	fi
-fi
-
-## this sed command emulates the dirname command
-dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
-
-# Make sure that the destination directory exists.
-#  this part is taken from Noah Friedman's mkinstalldirs script
-
-# Skip lots of stat calls in the usual case.
-if [ ! -d "$dstdir" ]; then
-defaultIFS='
-	'
-IFS="${IFS-$defaultIFS}"
-
-oIFS=$IFS
-# Some sh's can't handle IFS=/ for some reason.
-IFS='%'
-set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
-IFS=$oIFS
-
-pathcomp=''
-
-while [ $# -ne 0 ] ; do
-	pathcomp=$pathcomp$1
-	shift
-
-	if [ ! -d "$pathcomp" ] ;
-        then
-		$mkdirprog "$pathcomp"
-	else
-		:
-	fi
-
-	pathcomp=$pathcomp/
-done
-fi
-
-if [ x"$dir_arg" != x ]
-then
-	$doit $instcmd "$dst" &&
-
-	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
-	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
-	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
-	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
-else
-
-# If we're going to rename the final executable, determine the name now.
-
-	if [ x"$transformarg" = x ]
-	then
-		dstfile=`basename "$dst"`
-	else
-		dstfile=`basename "$dst" $transformbasename |
-			sed $transformarg`$transformbasename
-	fi
-
-# don't allow the sed command to completely eliminate the filename
-
-	if [ x"$dstfile" = x ]
-	then
-		dstfile=`basename "$dst"`
-	else
-		:
-	fi
-
-# Make a couple of temp file names in the proper directory.
-
-	dsttmp=$dstdir/_inst.$$_
-	rmtmp=$dstdir/_rm.$$_
-
-# Trap to clean up temp files at exit.
-
-	trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
-	trap '(exit $?); exit' 1 2 13 15
-
-# Move or copy the file name to the temp name
-
-	$doit $instcmd "$src" "$dsttmp" &&
-
-# and set any options; do chmod last to preserve setuid bits
-
-# If any of these fail, we abort the whole thing.  If we want to
-# ignore errors from any of these, just make sure not to ignore
-# errors from the above "$doit $instcmd $src $dsttmp" command.
-
-	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
-	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
-	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
-	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&
-
-# Now remove or move aside any old file at destination location.  We try this
-# two ways since rm can't unlink itself on some systems and the destination
-# file might be busy for other reasons.  In this case, the final cleanup
-# might fail but the new file should still install successfully.
-
-{
-	if [ -f "$dstdir/$dstfile" ]
-	then
-		$doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
-		$doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
-		{
-		  echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
-		  (exit 1); exit
-		}
-	else
-		:
-	fi
-} &&
-
-# Now rename the file to the real destination.
-
-	$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
-
-fi &&
-
-# The final little trick to "correctly" pass the exit status to the exit trap.
-
-{
-	(exit 0); exit
-}
diff --git a/m4/gengetopt/makefile b/m4/gengetopt/makefile
index 79e101a3..ada70d19 100644
--- a/m4/gengetopt/makefile
+++ b/m4/gengetopt/makefile
@@ -25,3 +25,14 @@ $(m4depdir)/%.m4d: $(m4_ggo_dir)/%.m4 | $(m4depdir)
 $(ggo_dir)/%.ggo: $(m4_ggo_dir)/%.m4 $(m4_ggo_dir)/header.m4 | $(ggo_dir)
 	@[ -z "$(Q)" ] || echo 'M4 $<'
 	$(Q) m4 -I $(m4_ggo_dir) $< > $@
+
+$(help2man_dir)/para_%: $(ggo_dir)/%.ggo | $(help2man_dir)
+	@[ -z "$(Q)" ] || echo 'G2X $<'
+	$(Q) printf "#!/bin/sh\nif [ \"\$$1\" = '--version' ]; then \
+			$(GENGETOPT) $(ggo_opts) --show-version < $<; \
+		elif [ \"\$$1\" = '--help' ]; then \
+			$(GENGETOPT)  $(ggo_opts) --show-detailed-help < $<; \
+		else \
+			exit 1; \
+		fi\n" > $@.tmp
+	$(Q) chmod 755 $@.tmp && mv $@.tmp $@
diff --git a/opusdec_filter.c b/opusdec_filter.c
index 90e65bc3..c3b405cc 100644
--- a/opusdec_filter.c
+++ b/opusdec_filter.c
@@ -72,6 +72,7 @@ struct opusdec_context {
 	int channels;
 	int preskip;
 	bool have_opus_stream;
+	bool have_more;
 	ogg_int32_t opus_serialno;
 };
 
@@ -204,60 +205,84 @@ static int decode_packet(struct opusdec_context *ctx, ogg_packet *op,
 	return 1;
 }
 
+#define OPUSDEC_MAX_OUTPUT_SIZE (1024 * 1024)
+
 static int opusdec_post_select(__a_unused struct sched *s, struct task *t)
 {
 	struct filter_node *fn = container_of(t, struct filter_node, task);
 	struct opusdec_context *ctx = fn->private_data;
 	struct btr_node *btrn = fn->btrn;
 	int ret;
-	char *btr_buf, *data;
-	size_t nbytes;
 	ogg_packet op;
 
 	ret = btr_node_status(btrn, fn->min_iqs, BTR_NT_INTERNAL);
-	if (ret <= 0)
-		goto out;
-	btr_merge(btrn, fn->min_iqs);
-	nbytes = btr_next_buffer(btrn, &btr_buf);
-	nbytes = PARA_MIN(nbytes, (size_t)32768);
-	ret = 0;
-	if (nbytes == 0)
-		goto out;
-	data = ogg_sync_buffer(&ctx->oy, nbytes);
-	memcpy(data, btr_buf, nbytes);
-	btr_consume(btrn, nbytes);
-	ogg_sync_wrote(&ctx->oy, nbytes);
-	for (;;) { /* loop over all ogg pages we got */
-		ret = 0;
-		if (ogg_sync_pageout(&ctx->oy, &ctx->ogg_page) != 1)
+	if (ret < 0) {
+		if (ret != -E_BTR_EOF) /* fatal error */
+			goto out;
+		if (!ctx->have_more) /* EOF */
 			goto out;
-		if (!ctx->stream_init) {
-			ogg_stream_init(&ctx->os, ogg_page_serialno(&ctx->ogg_page));
+	} else if (ret == 0 && !ctx->have_more) /* nothing to do */
+		goto out;
+	if (btr_get_output_queue_size(btrn) > OPUSDEC_MAX_OUTPUT_SIZE)
+		return 0;
+	for (;;) {
+		int serial;
+		if (ctx->stream_init) {
+			ret = ogg_stream_packetout(&ctx->os, &op);
+			if (ret == 1)
+				break;
+		}
+		while (ogg_sync_pageout(&ctx->oy, &ctx->ogg_page) != 1) {
+			char *btr_buf, *data;
+			size_t nbytes = btr_next_buffer(btrn, &btr_buf);
+			nbytes = PARA_MIN(nbytes, (size_t)24 * 1024);
+			//PARA_CRIT_LOG("nbytes: %d\n", nbytes);
+			ctx->have_more = false;
+			if (nbytes == 0)
+				return 0;
+			data = ogg_sync_buffer(&ctx->oy, nbytes);
+			memcpy(data, btr_buf, nbytes);
+			btr_consume(btrn, nbytes);
+			ogg_sync_wrote(&ctx->oy, nbytes);
+		}
+		ctx->have_more = true;
+		serial = ogg_page_serialno(&ctx->ogg_page);
+		if (ctx->stream_init) {
+			if (serial != ctx->os.serialno)
+				ogg_stream_reset_serialno(&ctx->os, serial);
+		} else {
+			ogg_stream_init(&ctx->os, serial);
 			ctx->stream_init = true;
 		}
-		if (ogg_page_serialno(&ctx->ogg_page) != ctx->os.serialno)
-			ogg_stream_reset_serialno(&ctx->os,
-				ogg_page_serialno(&ctx->ogg_page));
 		/* Add page to the bitstream */
 		ogg_stream_pagein(&ctx->os, &ctx->ogg_page);
-		for (;;) { /* loop over all opus packets */
-			ret = ogg_stream_packetout(&ctx->os, &op);
-			if (ret != 1)
-				break;
-			ret = decode_packet(ctx, &op, btrn);
-			if (ret < 0)
-				goto out;
-			ctx->packet_count++;
-			if (ctx->eos)
-				ctx->have_opus_stream = false;
-		}
 	}
+	ret = decode_packet(ctx, &op, btrn);
+	if (ret < 0)
+		goto out;
+	ctx->packet_count++;
+	if (ctx->eos)
+		ctx->have_opus_stream = false;
 out:
 	if (ret < 0)
 		btr_remove_node(&fn->btrn);
 	return ret;
 }
 
+static void opusdec_pre_select(struct sched *s, struct task *t)
+{
+	struct filter_node *fn = container_of(t, struct filter_node, task);
+	struct opusdec_context *ctx = fn->private_data;
+	int ret = btr_node_status(fn->btrn, fn->min_iqs, BTR_NT_INTERNAL);
+
+	if (ret != 0)
+		return sched_min_delay(s);
+	if (ctx->have_more)
+		return;
+	if (btr_get_output_queue_size(fn->btrn) <= OPUSDEC_MAX_OUTPUT_SIZE)
+		return sched_min_delay(s);
+}
+
 /**
  * The init function of the opusdec filter.
  *
@@ -269,7 +294,7 @@ void opusdec_filter_init(struct filter *f)
 {
 	f->open = opusdec_open;
 	f->close = opusdec_close;
-	f->pre_select = generic_filter_pre_select;
+	f->pre_select = opusdec_pre_select;
 	f->post_select = opusdec_post_select;
 	f->execute = opusdec_execute;
 }
diff --git a/t/makefile.test b/t/makefile.test
index 69c69bef..a2bd4e53 100644
--- a/t/makefile.test
+++ b/t/makefile.test
@@ -6,7 +6,7 @@ trash_dir := $(test_dir)/trashes
 test_options := --executables-dir $(shell pwd)
 test_options += --results-dir $(results_dir)
 test_options += --trash-dir $(trash_dir)
-test_options += --executables "$(executables)"
+test_options += --executables "$(prefixed_executables)"
 test_options += --objects "$(basename $(all_objs))"
 
 ifdef V
diff --git a/web/manual.m4 b/web/manual.m4
index 55bb49a6..62ebf3a8 100644
--- a/web/manual.m4
+++ b/web/manual.m4
@@ -232,14 +232,6 @@ Detailed description: In any case you'll need
 	scripts which run during compilation require the EMPH(Bourne
 	again shell).  It is most likely already installed.
 
-	- XREFERENCE(http://www.openssl.org/, openssl) or
-	XREFERENCE(ftp://ftp.gnupg.org/gcrypt/libgcrypt/, libgcrypt).
-	At least one of these two libraries is needed as the backend
-	for cryptographic routines on both the server and the client
-	side. Both openssl and libgcrypt are usually shipped with the
-	distro, but you might have to install the development package
-	(libssl-dev or libgcrypt-dev on debian systems) as well.
-
 	- XREFERENCE(ftp://ftp.gnu.org/pub/gnu/gengetopt/, gengetopt)
 	is needed to generate the C code for the command line parsers
 	of all paraslash executables.
@@ -249,6 +241,14 @@ Detailed description: In any case you'll need
 
 Optional:
 
+	- XREFERENCE(http://www.openssl.org/, openssl) or
+	XREFERENCE(ftp://ftp.gnupg.org/gcrypt/libgcrypt/, libgcrypt).
+	At least one of these two libraries is needed as the backend
+	for cryptographic routines on both the server and the client
+	side. Both openssl and libgcrypt are usually shipped with the
+	distro, but you might have to install the development package
+	(libssl-dev or libgcrypt-dev on debian systems) as well.
+
 	- XREFERENCE(http://www.underbit.com/products/mad/, libmad).
 	To compile in MP3 support for paraslash, the development
 	package must be installed. It is called libmad0-dev on