X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=configure.ac;h=80fff1e016f690fe55814ee2d5c21e3b60383269;hp=e4010bdeb0800dbea6ac63e073264666ad0f249e;hb=9bfd946422ec369c4fd91aa1c674cfb277e8cd9f;hpb=aa581f6e3f8cb9e007de97c6d3f25b2ff9b6533d

diff --git a/configure.ac b/configure.ac
index e4010bde..80fff1e0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,8 @@
 
 AC_PREREQ([2.61])
 
-AC_INIT([paraslash],[git],[maan@tuebingen.mpg.de])
+AC_INIT([paraslash], [m4_esyscmd_s(./GIT-VERSION-GEN)],
+	[maan@tuebingen.mpg.de], [], [http://people.tuebingen.mpg.de/maan/paraslash/])
 AC_CONFIG_HEADERS([config.h])
 
 AC_CONFIG_FILES([Makefile])
@@ -23,6 +24,46 @@ AC_DEFUN([objlist_to_errlist],[ \
 	make_errlist_defines($@) \
 	[const char **para_errlist[[]]] = {make_para_errlists($@)} \
 ])
+AC_DEFUN([LIB_ARG_WITH], [
+	AC_ARG_WITH($1-headers, [AS_HELP_STRING(--with-$1-headers=dir,
+		[look for $1 headers in dir])])
+	AC_ARG_WITH($1-libs, [AS_HELP_STRING(--with-$1-libs=dir,
+		[look for $1 libraries in dir])])
+	if test -n "$with_$1_headers"; then
+		$1_cppflags="-I$with_$1_headers"
+		CPPFLAGS="$CPPFLAGS $$1_cppflags"
+	fi
+	if test -n "$with_$1_libs"; then
+		$1_ldflags="-L$with_$1_libs $2"
+	else
+		$1_ldflags="$2"
+	fi
+	LDFLAGS="$LDFLAGS $$1_ldflags"
+])
+
+AC_DEFUN([STASH_FLAGS], [
+	OLD_CPPFLAGS="$CPPFLAGS"
+	OLD_LDFLAGS="$LDFLAGS"
+	OLD_LIBS="$LIBS"
+])
+
+AC_DEFUN([UNSTASH_FLAGS], [
+	CPPFLAGS="$OLD_CPPFLAGS"
+	LDFLAGS="$OLD_LDFLAGS"
+	LIBS="$OLD_LIBS"
+])
+AC_DEFUN([LIB_SUBST_FLAGS], [
+	if test "$HAVE_[]m4_toupper([$1])" == 'yes'; then
+		AC_DEFINE(HAVE_[]m4_toupper([$1]), 1,
+			define to 1 to turn on $1 support)
+	else
+		$1_cppflags=
+		$1_ldflags=
+	fi
+	AC_SUBST(HAVE_[]m4_toupper([$1]))
+	AC_SUBST($1_cppflags)
+	AC_SUBST($1_ldflags)
+])
 
 AC_PATH_PROG(UNAMEPATH, uname, no)
 if test "$UNAMEPATH" = "no"; then
@@ -55,54 +96,6 @@ test -z "$install" && AC_MSG_ERROR(
 AC_PROG_CC
 AC_PROG_CPP
 
-AC_HEADER_DIRENT
-AC_HEADER_STDC
-AC_HEADER_SYS_WAIT
-AC_HEADER_STDBOOL
-AC_CHECK_HEADERS([arpa/inet.h ctype.h fcntl.h limits.h netdb.h netinet/in.h \
-	stdlib.h string.h sys/socket.h sys/time.h sys/timeb.h sys/un.h \
-	sys/ipc.h unistd.h utime.h stddef.h],
-	[], [AC_MSG_ERROR([$ac_header not found])])
-
-# Checks for typedefs, structures, and compiler characteristics.
-AC_C_CONST
-AC_C_INLINE
-AC_TYPE_OFF_T
-AC_TYPE_PID_T
-AC_TYPE_SIZE_T
-AC_HEADER_TIME
-AC_STRUCT_TM
-AC_TYPE_INT8_T
-AC_TYPE_INT16_T
-AC_TYPE_INT32_T
-AC_TYPE_INT64_T
-AC_TYPE_MODE_T
-AC_TYPE_SSIZE_T
-AC_TYPE_UID_T
-AC_TYPE_UINT8_T
-AC_TYPE_UINT16_T
-AC_TYPE_UINT32_T
-AC_TYPE_UINT64_T
-
-# Checks for library functions.
-AC_FUNC_FORK
-AC_PROG_GCC_TRADITIONAL
-AC_FUNC_MEMCMP
-AC_FUNC_MKTIME
-AC_FUNC_MMAP
-AC_FUNC_SELECT_ARGTYPES
-AC_FUNC_STAT
-AC_FUNC_STRFTIME
-AC_FUNC_VPRINTF
-AC_FUNC_CLOSEDIR_VOID
-AC_FUNC_LSTAT
-
-AC_CHECK_FUNCS([atexit dup2 memchr memmove memset \
-	regcomp select strchr strdup strerror strstr strtol uname \
-	fchdir gettimeofday localtime_r munmap strcasecmp strcspn \
-	strncasecmp strrchr strspn alarm mkdir inet_ntoa socket], [],
-	[AC_MSG_ERROR([function not found, cannot live without it])])
-
 executables="recv filter audioc write afh play"
 ################################################################## clock_gettime
 clock_gettime_lib=
@@ -116,42 +109,32 @@ fi
 if test "$clock_gettime_lib" = "rt"; then
 	AC_SUBST(clock_gettime_ldflags, -lrt)
 fi
-########################################################################### osl
-have_osl=yes
-OLD_CPPFLAGS="$CPPFLAGS"
-OLD_LDFLAGS="$LDFLAGS"
-OLD_LIBS="$LIBS"
-AC_ARG_WITH(osl_headers, [AS_HELP_STRING(--with-osl-headers=dir,
-	[look for osl.h also in dir])])
-if test -n "$with_osl_headers"; then
-	osl_cppflags="-I$with_osl_headers"
-	CPPFLAGS="$CPPFLAGS $osl_cppflags"
-fi
-AC_ARG_WITH(osl_libs, [AS_HELP_STRING(--with-osl-libs=dir,
-	[look for libosl also in dir])])
-if test -n "$with_osl_libs"; then
-	osl_libs="-L$with_osl_libs"
-	LDFLAGS="$LDFLAGS $osl_libs"
-fi
 
-AC_CHECK_HEADER(osl.h, [], have_osl=no)
-AC_CHECK_LIB([osl], [osl_open_table], [], have_osl=no)
-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://people.tuebingen.mpg.de/maan/osl/
-or execute
-	git clone git://git.tuebingen.mpg.de/osl
-	])
-fi
-CPPFLAGS="$OLD_CPPFLAGS"
-LDFLAGS="$OLD_LDFLAGS"
-LIBS="$OLD_LIBS"
-########################################################################### crypto
+########################################################################### osl
+STASH_FLAGS
+LIB_ARG_WITH([osl], [-losl])
+HAVE_OSL=yes
+AC_CHECK_HEADER(osl.h, [], [HAVE_OSL=no])
+AC_CHECK_LIB([osl], [osl_open_table], [], [HAVE_OSL=no])
+LIB_SUBST_FLAGS(osl)
+UNSTASH_FLAGS
+######################################################################## openssl
+STASH_FLAGS
+HAVE_OPENSSL=yes
+LIB_ARG_WITH([openssl], [-lssl -lcrypto])
+AC_CHECK_HEADER(openssl/ssl.h, [], [HAVE_OPENSSL=no])
+AC_CHECK_LIB([crypto], [RAND_bytes], [], [HAVE_OPENSSL=no])
+LIB_SUBST_FLAGS(openssl)
+UNSTASH_FLAGS
+######################################################################### gcrypt
+STASH_FLAGS
+HAVE_GCRYPT=yes
+LIB_ARG_WITH([gcrypt], [-lgcrypt])
+AC_CHECK_HEADER(gcrypt.h, [], [HAVE_GCRYPT=no])
+AC_CHECK_LIB([gcrypt], [gcry_randomize], [], [HAVE_GCRYPT=no])
+LIB_SUBST_FLAGS(gcrypt)
+UNSTASH_FLAGS
+######################################################################### crypto
 AC_ARG_ENABLE(cryptolib, [AS_HELP_STRING(--enable-cryptolib=lib, [
 	Force using crypto library "lib". This package requires either
 	openssl or libgcrypt being installed. Possible values for "lib"
@@ -159,96 +142,32 @@ AC_ARG_ENABLE(cryptolib, [AS_HELP_STRING(--enable-cryptolib=lib, [
 	openssl is tried first. If openssl was not found, gcrypt is
 	tried next.])])
 
+CRYPTOLIB="$enable_cryptolib"
 case "$enable_cryptolib" in
-	"openssl") check_openssl="yes"; check_gcrypt="no";;
-	"gcrypt") check_openssl="no"; check_gcrypt="yes";;
-	"") check_openssl="yes"; check_gcrypt="yes";;
-	*) AC_MSG_ERROR([invalid value "$enable_cryptolib" for --enable-cryptolib]);;
-esac
-###################################################################### openssl
-if test "$check_openssl" = "yes"; then
-	OLD_CPPFLAGS="$CPPFLAGS"
-	OLD_LDFLAGS="$LDFLAGS"
-	OLD_LIBS="$LIBS"
-	have_openssl="yes"
-	AC_ARG_WITH(openssl_headers, [AS_HELP_STRING(--with-openssl-headers=dir,
-		[look for openssl headers also in dir])])
-	if test -n "$with_openssl_headers"; then
-		openssl_cppflags="-I$with_openssl_headers"
-		CPPFLAGS="$CPPFLAGS $openssl_cppflags"
-	fi
-	AC_ARG_WITH(openssl_libs, [AS_HELP_STRING(--with-openssl-libs=dir,
-		[look for openssl libraries also in dir])])
-	if test -n "$with_openssl_libs"; then
-		openssl_libs="-L$with_openssl_libs"
-		LDFLAGS="$LDFLAGS $openssl_libs"
-	fi
-	AC_CHECK_HEADER(openssl/ssl.h, [], [have_openssl="no"])
-	AC_CHECK_LIB([crypto], [RAND_bytes], [], [have_openssl="no"])
-	if test "$have_openssl" = "no" -a -z "$with_openssl_headers$with_openssl_libs"; then
-		# try harder: openssl is sometimes installed in /usr/local/ssl
-		openssl_cppflags="-I/usr/local/ssl/include"
-		CPPFLAGS="$CPPFLAGS $openssl_cppflags"
-		openssl_libs="-L/usr/local/ssl/lib"
-		LDFLAGS="$LDFLAGS $openssl_libs"
-		# clear cache
-		unset ac_cv_header_openssl_ssl_h 2> /dev/null
-		unset ac_cv_lib_crypto_RAND_bytes 2> /dev/null
-		AC_CHECK_HEADER(openssl/ssl.h, [have_openssl="yes"], [])
-		if test "$have_openssl" = "yes"; then
-			AC_CHECK_LIB([crypto], [RAND_bytes], [], [have_openssl="no"])
-		fi
-	fi
-	if test "$have_openssl" = "yes"; then
-		AC_DEFINE(HAVE_OPENSSL, 1, [define to 1 to turn on openssl support])
-		AC_SUBST(openssl_cppflags)
-		openssl_ldflags="$openssl_libs -lssl -lcrypto"
-		AC_SUBST(openssl_ldflags)
-
-		check_gcrypt="no"
-	else
-		AC_MSG_WARN([openssl libraries not found])
+"openssl")
+	test $HAVE_OPENSSL = no && AC_MSG_ERROR(openssl not found)
+	crypto_ldflags="$openssl_ldflags"
+	;;
+"gcrypt")
+	test $HAVE_GCRYPT = no && AC_MSG_ERROR(gcrypt not found)
+	crypto_ldflags="$gcrypt_ldflags"
+	;;
+"")
+	crypto_ldflags=
+	if test $HAVE_GCRYPT = yes; then
+		CRYPTOLIB=gcrypt
+		crypto_ldflags="$gcrypt_ldflags"
 	fi
-	CPPFLAGS="$OLD_CPPFLAGS"
-	LDFLAGS="$OLD_LDFLAGS"
-	LIBS="$OLD_LIBS"
-else
-	have_openssl="no"
-fi
-########################################################################### gcrypt
-if test "$check_gcrypt" = "yes"; then
-	OLD_CPPFLAGS="$CPPFLAGS"
-	OLD_LDFLAGS="$LDFLAGS"
-	OLD_LIBS="$LIBS"
-	have_gcrypt="yes"
-	AC_ARG_WITH(gcrypt_headers, [AS_HELP_STRING(--with-gcrypt-headers=dir,
-		[look for gcrypt headers also in dir])])
-	if test -n "$with_gcrypt_headers"; then
-		gcrypt_cppflags="-I$with_gcrypt_headers"
-		CPPFLAGS="$CPPFLAGS $gcrypt_cppflags"
-	fi
-	AC_ARG_WITH(gcrypt_libs, [AS_HELP_STRING(--with-gcrypt-libs=dir,
-		[look for libgcrypt also in dir])])
-	if test -n "$with_gcrypt_libs"; then
-		gcrypt_libs="-L$with_gcrypt_libs"
-		LDFLAGS="$LDFLAGS $gcrypt_libs"
-	fi
-	AC_CHECK_HEADER(gcrypt.h, [], [have_gcrypt="no"])
-	AC_CHECK_LIB([gcrypt], [gcry_randomize], [], [have_gcrypt="no"])
-	if test "$have_gcrypt" = "yes"; then
-		AC_DEFINE(HAVE_GCRYPT, 1, [define to 1 to turn on gcrypt support])
-		AC_SUBST(gcrypt_cppflags)
-		gcrypt_ldflags="$gcrypt_libs -lgcrypt"
-		AC_SUBST(gcrypt_ldflags)
-	else
-		AC_MSG_WARN([gcrypt library not found])
+	if test $HAVE_OPENSSL = yes; then
+		CRYPTOLIB=openssl
+		crypto_ldflags="$openssl_ldflags"
 	fi
-	CPPFLAGS="$OLD_CPPFLAGS"
-	LDFLAGS="$OLD_LDFLAGS"
-	LIBS="$OLD_LIBS"
-else
-	have_gcrypt="no"
-fi
+	;;
+*)
+	AC_MSG_ERROR([invalid value "$enable_cryptolib" for --enable-cryptolib])
+	;;
+esac
+AC_SUBST(crypto_ldflags)
 ########################################################################### libsocket
 AC_CHECK_LIB([c], [socket],
 	[socket_ldlflags=],
@@ -348,273 +267,92 @@ if test ${have_core_audio} = yes; then
 	AC_SUBST(core_audio_ldflags)
 	AC_DEFINE(HAVE_CORE_AUDIO, 1, define to 1 on Mac Os X)
 fi
-####################################################### ogg/vorbis/speex/opus
-have_ogg="yes"
-OLD_CPPFLAGS="$CPPFLAGS"
-OLD_LDFLAGS="$LDFLAGS"
-OLD_LIBS="$LIBS"
-AC_ARG_WITH(ogg_headers, [AS_HELP_STRING(--with-ogg-headers=dir,
-	[look for ogg headers also in dir])])
-AC_ARG_WITH(ogg_libs, [AS_HELP_STRING(--with-ogg-libs=dir,
-	[look for ogg libs also in dir])])
-AC_ARG_WITH(vorbis_headers, [AS_HELP_STRING(--with-vorbis-headers=dir,
-	[look for vorbis headers also in dir])])
-AC_ARG_WITH(vorbis_libs, [AS_HELP_STRING(--with-vorbis-libs=dir,
-	[look for vorbis libs also in dir])])
-AC_ARG_WITH(speex_headers, [AS_HELP_STRING(--with-speex-headers=dir,
-	[look for speex headers also in dir])])
-AC_ARG_WITH(speex_libs, [AS_HELP_STRING(--with-speex-libs=dir,
-	[look for speex libs also in dir])])
-AC_ARG_WITH(opus_headers, [AS_HELP_STRING(--with-opus-headers=dir,
-	[look for opus headers also in dir])])
-AC_ARG_WITH(opus_libs, [AS_HELP_STRING(--with-opus-libs=dir,
-	[look for opus libs also in dir])])
-
-if test -n "$with_ogg_headers"; then
-	ogg_cppflags="-I$with_ogg_headers"
-	CPPFLAGS="$CPPFLAGS $ogg_cppflags"
-fi
-if test -n "$with_ogg_libs"; then
-	ogg_libs="-L$with_ogg_libs"
-	LDFLAGS="$LDFLAGS $ogg_libs"
-fi
-AC_CHECK_HEADERS([ogg/ogg.h], [], [ have_ogg="no"; ])
-AC_CHECK_LIB([ogg], [ogg_stream_init], [], [ have_ogg="no" ])
-CPPFLAGS="$OLD_CPPFLAGS"
-LDFLAGS="$OLD_LDFLAGS"
-LIBS="$OLD_LIBS"
-
-have_vorbis="yes"
-have_speex="yes"
-have_opus="yes"
-if test "$have_ogg" = "yes"; then
-	OLD_CPPFLAGS="$CPPFLAGS"
-	OLD_LDFLAGS="$LDFLAGS"
-	OLD_LIBS="$LIBS"
-	# vorbis
-	if test -n "$with_vorbis_headers"; then
-		vorbis_cppflags="-I$with_vorbis_headers"
-		CPPFLAGS="$CPPFLAGS $vorbis_cppflags"
-	fi
-	if test -n "$with_vorbis_libs"; then
-		vorbis_libs="-L$with_vorbis_libs"
-		LDFLAGS="$LDFLAGS $vorbis_libs"
-	fi
-	AC_CHECK_HEADERS([vorbis/codec.h], [], [ have_vorbis="no" ])
-	AC_CHECK_LIB([vorbis], [vorbis_info_init], [], [ have_vorbis="no" ])
-	CPPFLAGS="$OLD_CPPFLAGS"
-	LDFLAGS="$OLD_LDFLAGS"
-	LIBS="$OLD_LIBS"
-
-	# speex
-	OLD_CPPFLAGS="$CPPFLAGS"
-	OLD_LDFLAGS="$LDFLAGS"
-	OLD_LIBS="$LIBS"
-	if test -n "$with_speex_headers"; then
-		speex_cppflags="-I$with_speex_headers"
-		CPPFLAGS="$CPPFLAGS $speex_cppflags"
-	fi
-	if test -n "$with_speex_libs"; then
-		speex_libs="-L$with_speex_libs"
-		LDFLAGS="$LDFLAGS $speex_libs"
-	fi
-	AC_CHECK_LIB([speex], [speex_decoder_init], [], [ have_speex="no" ])
-	AC_CHECK_HEADERS([speex/speex.h], [], [ have_speex="no" ])
-	CPPFLAGS="$OLD_CPPFLAGS"
-	LDFLAGS="$OLD_LDFLAGS"
-	LIBS="$OLD_LIBS"
-
-	# opus
-	OLD_CPPFLAGS="$CPPFLAGS"
-	OLD_LDFLAGS="$LDFLAGS"
-	OLD_LIBS="$LIBS"
-	if test -n "$with_opus_headers"; then
-		opus_cppflags="-I$with_opus_headers"
-		CPPFLAGS="$CPPFLAGS $opus_cppflags"
-	fi
-	if test -n "$with_opus_libs"; then
-		opus_libs="-L$with_opus_libs"
-		LDFLAGS="$LDFLAGS $opus_libs"
-	fi
-	AC_CHECK_LIB([opus], [opus_multistream_decode], [], [ have_opus="no" ])
-	AC_CHECK_HEADERS([opus/opus.h], [], [ have_opus="no" ])
-	CPPFLAGS="$OLD_CPPFLAGS"
-	LDFLAGS="$OLD_LDFLAGS"
-	LIBS="$OLD_LIBS"
-else
-	AC_MSG_WARN([vorbis/speex/opus depend on libogg, which was not detected])
-	have_vorbis="no"
-	have_speex="no"
-	have_opus="no"
-fi
-
-msg="support in para_server/para_filter/para_afh"
-if test "$have_vorbis" = "yes" || \
-		test "$have_speex" = "yes" || \
-		test "$have_opus" = "yes"; then
-	AC_SUBST(ogg_cppflags)
-	ogg_ldflags="$ogg_libs -logg"
-	if test "$OSTYPE" = "Darwin"; then
-		ogg_ldflags="-Wl,-bind_at_load $ogg_ldflags"
-	fi
-	AC_SUBST(ogg_ldflags)
-fi
-if test "$have_vorbis" = "yes"; then
-	AC_DEFINE(HAVE_OGGVORBIS, 1, define to 1 to turn on ogg/vorbis support)
-	AC_SUBST(vorbis_cppflags)
-	vorbis_ldflags="$vorbis_libs -lvorbis -lvorbisfile"
-	AC_SUBST(vorbis_ldflags)
-fi
-if test "$have_speex" = "yes"; then
-	AC_DEFINE(HAVE_SPEEX, 1, define to 1 to turn on ogg/speex support)
-	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
-	AC_DEFINE(HAVE_OPUS, 1, define to 1 to turn on ogg/opus support)
-	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 $msg])
-fi
+########################################################################### ogg
+STASH_FLAGS
+LIB_ARG_WITH([ogg], [-logg])
+HAVE_OGG=yes
+AC_CHECK_HEADERS([ogg/ogg.h], [], [HAVE_OGG=no])
+AC_CHECK_LIB([ogg], [ogg_stream_init], [], [HAVE_OGG=no])
+LIB_SUBST_FLAGS(ogg)
+UNSTASH_FLAGS
+######################################################################### vorbis
+STASH_FLAGS
+LIB_ARG_WITH([vorbis], [-lvorbis -lvorbisfile])
+HAVE_VORBIS=yes
+AC_CHECK_HEADERS([vorbis/codec.h], [], [HAVE_VORBIS=no])
+AC_CHECK_LIB([vorbis], [vorbis_info_init], [], [HAVE_VORBIS=no])
+LIB_SUBST_FLAGS(vorbis)
+UNSTASH_FLAGS
+######################################################################### speex
+STASH_FLAGS
+LIB_ARG_WITH([speex], [-lspeex])
+HAVE_SPEEX=yes
+AC_CHECK_HEADERS([speex/speex.h], [], [HAVE_SPEEX=no])
+AC_CHECK_LIB([speex], [speex_decoder_init], [], [HAVE_SPEEX=no])
+LIB_SUBST_FLAGS(speex)
+UNSTASH_FLAGS
+######################################################################### opus
+STASH_FLAGS
+LIB_ARG_WITH([opus], [-lopus])
+HAVE_OPUS=yes
+AC_CHECK_HEADERS([opus/opus.h], [], [HAVE_OPUS=no])
+AC_CHECK_LIB([opus], [opus_multistream_decode], [], [HAVE_OPUS=no])
+LIB_SUBST_FLAGS(opus)
+UNSTASH_FLAGS
+########################################################################### flac
+STASH_FLAGS
+LIB_ARG_WITH([flac], [-lFLAC -lm])
+HAVE_FLAC=yes
+AC_CHECK_HEADER(FLAC/stream_decoder.h, [], HAVE_FLAC=no)
+AC_CHECK_LIB([FLAC], [FLAC__stream_decoder_init_file], [], HAVE_FLAC=no)
+LIB_SUBST_FLAGS(flac)
+UNSTASH_FLAGS
+
+# some helper functions for codecs which use the ogg container format
+AC_DEFUN([NEED_OGG_OBJECTS], [{
+	test "$HAVE_OGG" = 'yes' -a \( \
+		 "$HAVE_VORBIS" = 'yes' \
+		-o "$HAVE_SPEEX" = 'yes' \
+		-o "$HAVE_OPUS" = 'yes' \
+		-o "$HAVE_FLAC" = 'yes' \
+	\)
+}])
+AC_DEFUN([NEED_VORBIS_OBJECTS], [{
+	test "$HAVE_OGG" = 'yes' -a "$HAVE_VORBIS" = 'yes'
+}])
+AC_DEFUN([NEED_SPEEX_OBJECTS], [{
+	test "$HAVE_OGG" = 'yes' -a "$HAVE_SPEEX" = 'yes'
+}])
+AC_DEFUN([NEED_OPUS_OBJECTS], [{
+	test "$HAVE_OGG" = 'yes' -a "$HAVE_OPUS" = 'yes'
+}])
+AC_DEFUN([NEED_FLAC_OBJECTS], [{
+	test "$HAVE_OGG" = 'yes' -a "$HAVE_FLAC" = 'yes'
+}])
 ########################################################################### faad
-have_faad=yes
-OLD_CPPFLAGS="$CPPFLAGS"
-OLD_LDFLAGS="$LDFLAGS"
-OLD_LIBS="$LIBS"
-AC_ARG_WITH(faad_headers, [AS_HELP_STRING(--with-faad-headers=dir,
-	[look for neaacdec.h also in dir])])
-if test -n "$with_faad_headers"; then
-	faad_cppflags="-I$with_faad_headers"
-	CPPFLAGS="$CPPFLAGS $faad_cppflags"
-fi
-AC_ARG_WITH(faad_libs, [AS_HELP_STRING(--with-faad-libs=dir,
-	[look for libfaad also in dir])])
-if test -n "$with_faad_libs"; then
-	faad_libs="-L$with_faad_libs"
-	LDFLAGS="$LDFLAGS $faad_libs"
-fi
-AC_CHECK_HEADER(neaacdec.h, [], have_faad=no)
-AC_CHECK_LIB([faad], [NeAACDecOpen], [], have_faad=no)
-if test "$have_faad" = "yes"; then
-	AC_DEFINE(HAVE_FAAD, 1, define to 1 if you want to build the aacdec filter)
-	AC_SUBST(faad_cppflags)
-	faad_ldflags="$faad_libs -lfaad"
-	AC_SUBST(faad_ldflags)
-fi
-CPPFLAGS="$OLD_CPPFLAGS"
-LDFLAGS="$OLD_LDFLAGS"
-LIBS="$OLD_LIBS"
+STASH_FLAGS
+LIB_ARG_WITH([faad], [-lfaad])
+HAVE_FAAD=yes
+AC_CHECK_HEADER(neaacdec.h, [], HAVE_FAAD=no)
+AC_CHECK_LIB([faad], [NeAACDecOpen], [], HAVE_FAAD=no)
+LIB_SUBST_FLAGS(faad)
+UNSTASH_FLAGS
 ########################################################################### mad
-have_mad="yes"
-OLD_CPPFLAGS="$CPPFLAGS"
-OLD_LDFLAGS="$LDFLAGS"
-OLD_LIBS="$LIBS"
-
-AC_ARG_WITH(mad_headers, [AS_HELP_STRING(--with-mad-headers=dir,
-	[look for mad.h also in dir])])
-if test -n "$with_mad_headers"; then
-	mad_cppflags="-I$with_mad_headers"
-	CPPFLAGS="$CPPFLAGS $mad_cppflags"
-fi
-AC_ARG_WITH(mad_libs, [AS_HELP_STRING(--with-mad-libs=dir,
-	[look for libmad also in dir])])
-if test -n "$with_mad_libs"; then
-	mad_libs="-L$with_mad_libs"
-	LDFLAGS="$LDFLAGS $mad_libs"
-fi
-AC_CHECK_HEADERS([mad.h], [], [
-	have_mad="no"
-])
-AC_CHECK_LIB([mad], [mad_stream_init], [], [
-	have_mad="no"
-])
-if test "$have_mad" = "yes"; then
-	AC_DEFINE(HAVE_MAD, 1, define to 1 if you want to build the mp3dec filter)
-	AC_SUBST(mad_cppflags)
-	mad_ldflags="$mad_libs -lmad"
-	AC_SUBST(mad_ldflags)
-else
-	AC_MSG_WARN([no mp3dec support in para_audiod/para_filter])
-fi
-CPPFLAGS="$OLD_CPPFLAGS"
-LDFLAGS="$OLD_LDFLAGS"
-LIBS="$OLD_LIBS"
+STASH_FLAGS
+LIB_ARG_WITH([mad], [-lmad])
+HAVE_MAD=yes
+AC_CHECK_HEADER(mad.h, [], HAVE_MAD=no)
+AC_CHECK_LIB([mad], [mad_stream_init], [], HAVE_MAD=no)
+LIB_SUBST_FLAGS(mad)
+UNSTASH_FLAGS
 ###################################################################### libid3tag
-OLD_CPPFLAGS="$CPPFLAGS"
-OLD_LDFLAGS="$LDFLAGS"
-OLD_LIBS="$LIBS"
-
-have_libid3tag="yes"
-AC_ARG_WITH(id3tag_headers, [AS_HELP_STRING(--with-id3tag-headers=dir,
-	[look for id3tag header files also in dir])])
-if test -n "$with_id3tag_headers"; then
-	id3tag_cppflags="-I$with_id3tag_headers"
-	CPPFLAGS="$CPPFLAGS $id3tag_cppflags"
-fi
-AC_ARG_WITH(id3tag_libs, [AS_HELP_STRING(--with-id3tag-libs=dir,
-	[look for id3tag libs also in dir])])
-if test -n "$with_id3tag_libs"; then
-	id3tag_libs="-L$with_id3tag_libs"
-	LDFLAGS="$LDFLAGS $id3tag_libs"
-fi
-
-AC_MSG_CHECKING(for libid3tag)
-AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-	#include <id3tag.h>
-]], [[
-	struct id3_tag t = {.flags = 0};
-]])],[],[have_libid3tag=no])
-AC_MSG_RESULT($have_libid3tag)
-
-if test ${have_libid3tag} = yes; then
-	AC_DEFINE(HAVE_LIBID3TAG, 1, define to 1 you have libid3tag)
-	AC_SUBST(id3tag_cppflags)
-	AC_SUBST(id3tag_ldflags, "$id3tag_libs -lid3tag -lz")
-fi
-CPPFLAGS="$OLD_CPPFLAGS"
-LDFLAGS="$OLD_LDFLAGS"
-LIBS="$OLD_LIBS"
-########################################################################### flac
-OLD_CPPFLAGS="$CPPFLAGS"
-OLD_LDFLAGS="$LDFLAGS"
-OLD_LIBS="$LIBS"
-
-have_flac="yes"
-AC_ARG_WITH(flac_headers, [AS_HELP_STRING(--with-flac-headers=dir,
-	[look for flac headers also in dir])])
-if test -n "$with_flac_headers"; then
-	flac_cppflags="-I$with_flac_headers"
-	CPPFLAGS="$CPPFLAGS $flac_cppflags"
-fi
-AC_ARG_WITH(flac_libs, [AS_HELP_STRING(--with-flac-libs=dir,
-	[look for flac libs also in dir])])
-if test -n "$with_flac_libs"; then
-	flac_libs="-L$with_flac_libs"
-	LDFLAGS="$LDFLAGS $flac_libs"
-fi
-AC_CHECK_HEADER(FLAC/stream_decoder.h, [], have_flac=no)
-AC_CHECK_LIB([FLAC], [FLAC__stream_decoder_init_file], [], [
-	# nope, try again with -logg
-	AC_CHECK_LIB([FLAC], [FLAC__stream_decoder_init_file], [],
-		have_flac=no, -lm -logg)
-	], -lm)
-if test "$have_flac" = "yes"; then
-	AC_DEFINE(HAVE_FLAC, 1, define to 1 if you want to build the flacdec filter)
-	AC_SUBST(flac_cppflags)
-	flac_ldflags="$flac_libs -lFLAC"
-	AC_SUBST(flac_ldflags)
-else
-	AC_MSG_WARN([no flac support in para_audiod/para_filter/para_afh/para_server])
-fi
-CPPFLAGS="$OLD_CPPFLAGS"
-LDFLAGS="$OLD_LDFLAGS"
-LIBS="$OLD_LIBS"
+STASH_FLAGS
+LIB_ARG_WITH([id3tag], [-lid3tag -lz])
+HAVE_ID3TAG=yes
+AC_CHECK_HEADER(id3tag.h, [], HAVE_ID3TAG=no)
+AC_CHECK_LIB([id3tag], [id3_file_fdopen], [], HAVE_ID3TAG=no)
+LIB_SUBST_FLAGS(id3tag)
+UNSTASH_FLAGS
 ########################################################################### oss
 OLD_CPPFLAGS="$CPPFLAGS"
 OLD_LDFLAGS="$LDFLAGS"
@@ -640,38 +378,13 @@ LDFLAGS="$OLD_LDFLAGS"
 LIBS="$OLD_LIBS"
 
 ########################################################################### alsa
-OLD_CPPFLAGS="$CPPFLAGS"
-OLD_LDFLAGS="$LDFLAGS"
-OLD_LIBS="$LIBS"
-
-msg="=> no alsa support for para_audiod/para_write"
-if test "$OSTYPE" != "Linux"; then
-	have_alsa="no"
-else
-	have_alsa="yes"
-fi
-if test "$have_alsa" = "yes"; then
-	AC_CHECK_HEADERS([alsa/asoundlib.h], [], [
-		have_alsa="no"
-		AC_MSG_WARN([no alsa/asoundlib $msg])
-	])
-fi
-
-if test "$have_alsa" = "yes"; then
-	AC_CHECK_LIB([asound], [snd_pcm_open], [], [
-		have_alsa="no"
-		AC_MSG_WARN([no libasound $msg])
-	])
-fi
-
-if test "$have_alsa" = "yes"; then
-	alsa_ldflags="-lasound"
-	AC_SUBST(alsa_ldflags)
-fi
-
-CPPFLAGS="$OLD_CPPFLAGS"
-LDFLAGS="$OLD_LDFLAGS"
-LIBS="$OLD_LIBS"
+STASH_FLAGS
+LIB_ARG_WITH([alsa], [-lasound])
+HAVE_ALSA=yes
+AC_CHECK_HEADER(alsa/asoundlib.h, [], HAVE_ALSA=no)
+AC_CHECK_LIB([asound], [snd_pcm_open], [], HAVE_ALSA=no)
+LIB_SUBST_FLAGS(alsa)
+UNSTASH_FLAGS
 ########################################################################### libao
 OLD_CPPFLAGS="$CPPFLAGS"
 OLD_LDFLAGS="$LDFLAGS"
@@ -827,9 +540,7 @@ CPPFLAGS="$OLD_CPPFLAGS"
 LDFLAGS="$OLD_LDFLAGS"
 LIBS="$OLD_LIBS"
 ######################################################################### server
-if test \( "$have_openssl" = "yes" -o "$have_gcrypt" = "yes" \) \
-	-a "$have_osl" = "yes" ; then
-
+if test -n "$CRYPTOLIB" && test $HAVE_OSL = yes; then
 	build_server="yes"
 	executables="$executables server"
 	server_cmdline_objs="server"
@@ -872,32 +583,17 @@ if test \( "$have_openssl" = "yes" -o "$have_gcrypt" = "yes" \) \
 		version
 		ggo
 	"
-	if test "$have_openssl" = "yes"; then
+	if test "$CRYPTOLIB" = openssl; then
 		server_errlist_objs="$server_errlist_objs crypt"
-	fi
-	if test "$have_gcrypt" = "yes"; then
+	else
 		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="$server_errlist_objs flac_afh"
-	fi
+	NEED_OGG_OBJECTS() && server_errlist_objs="$server_errlist_objs ogg_afh_common"
+	NEED_VORBIS_OBJECTS() && server_errlist_objs="$server_errlist_objs ogg_afh"
+	NEED_SPEEX_OBJECTS() && server_errlist_objs="$server_errlist_objs spx_afh spx_common"
+	NEED_OPUS_OBJECTS() && server_errlist_objs="$server_errlist_objs opus_afh opus_common"
+	NEED_FLAC_OBJECTS && server_errlist_objs="$server_errlist_objs flac_afh"
+	test $HAVE_FAAD = yes && server_errlist_objs="$server_errlist_objs aac_afh aac_common"
 	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,
@@ -906,7 +602,7 @@ else
 	build_server="no"
 fi
 ############################################################# client
-if test "$have_openssl" = "yes" -o "$have_gcrypt" = "yes"; then
+if test -n "$CRYPTOLIB"; then
 	build_client="yes"
 	executables="$executables client"
 	client_cmdline_objs="client"
@@ -926,10 +622,9 @@ if test "$have_openssl" = "yes" -o "$have_gcrypt" = "yes"; then
 		version
 		ggo
 	"
-	if test "$have_openssl" = "yes"; then
+	if test "$CRYPTOLIB" = openssl; then
 		client_errlist_objs="$client_errlist_objs crypt"
-	fi
-	if test "$have_gcrypt" = "yes"; then
+	else
 		client_errlist_objs="$client_errlist_objs gcrypt"
 	fi
 	if test "$have_readline" = "yes"; then
@@ -943,7 +638,7 @@ else
 	build_client="no"
 fi
 ############################################################# audiod
-if test "$have_openssl" = "yes" -o "$have_gcrypt" = "yes"; then
+if test -n "$CRYPTOLIB"; then
 	build_audiod="yes"
 	executables="$executables audiod"
 	audiod_audio_formats="wma"
@@ -997,46 +692,45 @@ if test "$have_openssl" = "yes" -o "$have_gcrypt" = "yes"; then
 		buffer_tree
 		sync_filter
 	"
-	if test "$have_openssl" = "yes"; then
+	if test "$CRYPTOLIB" = openssl; then
 		audiod_errlist_objs="$audiod_errlist_objs crypt"
-	fi
-	if test "$have_gcrypt" = "yes"; then
+	else
 		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"
 	fi
-	if test "$have_vorbis" = "yes"; then
+	NEED_VORBIS_OBJECTS && {
 		audiod_errlist_objs="$audiod_errlist_objs oggdec_filter"
 		audiod_audio_formats="$audiod_audio_formats ogg"
-	fi
-	if test "$have_speex" = "yes"; then
+	}
+	NEED_SPEEX_OBJECTS && {
 		audiod_errlist_objs="$audiod_errlist_objs spxdec_filter spx_common"
 		audiod_audio_formats="$audiod_audio_formats spx"
-	fi
-	if test "$have_opus" = "yes"; then
+	}
+	NEED_OPUS_OBJECTS && {
 		audiod_errlist_objs="$audiod_errlist_objs opusdec_filter opus_common"
 		audiod_audio_formats="$audiod_audio_formats opus"
-	fi
-	if test "$have_faad" = "yes"; then
+	}
+	NEED_FLAC_OBJECTS && {
+		audiod_errlist_objs="$audiod_errlist_objs flacdec_filter"
+		audiod_audio_formats="$audiod_audio_formats flac"
+	}
+	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
+	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
+	if test $HAVE_ALSA = yes; then
 		audiod_errlist_objs="$audiod_errlist_objs alsa_write"
 		audiod_cmdline_objs="$audiod_cmdline_objs alsa_write"
 	fi
@@ -1062,7 +756,7 @@ else
 	build_audiod="no"
 fi
 ########################################################################### fade
-if test "$have_oss" = "yes" -o "$have_alsa" = "yes"; then
+if test "$have_oss" = "yes" -o $HAVE_ALSA = yes; then
 	build_fade="yes"
 	executables="$executables fade"
 	fade_cmdline_objs="fade"
@@ -1072,7 +766,7 @@ if test "$have_oss" = "yes" -o "$have_alsa" = "yes"; then
 		mixers="${mixers}oss "
 		default_mixer="OSS_MIX"
 	fi
-	if test "$have_alsa" = "yes"; then
+	if test $HAVE_ALSA = yes; then
 		fade_errlist_objs="$fade_errlist_objs alsa_mix"
 		mixers="${mixers}alsa "
 		default_mixer="ALSA_MIX"
@@ -1175,32 +869,31 @@ filter_cmdline_objs="
 	prebuffer_filter
 	sync_filter
 "
-
-if test "$have_vorbis" = "yes"; then
+NEED_VORBIS_OBJECTS && {
 	filters="$filters oggdec"
 	filter_errlist_objs="$filter_errlist_objs oggdec_filter"
-fi
-if test "$have_speex" = "yes"; then
+}
+NEED_SPEEX_OBJECTS && {
 	filters="$filters spxdec"
 	filter_errlist_objs="$filter_errlist_objs spxdec_filter spx_common"
-fi
-if test "$have_opus" = "yes"; then
+}
+NEED_OPUS_OBJECTS && {
 	filters="$filters opusdec"
 	filter_errlist_objs="$filter_errlist_objs opusdec_filter opus_common"
-fi
-if test "$have_faad" = "yes"; then
+}
+NEED_FLAC_OBJECTS && {
+	filter_errlist_objs="$filter_errlist_objs flacdec_filter"
+	filters="$filters flacdec"
+}
+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
+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"
@@ -1251,26 +944,15 @@ recv_errlist_objs="
 	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 "$have_faad" = "yes"; then
+NEED_OGG_OBJECTS && recv_errlist_objs="$recv_errlist_objs ogg_afh_common"
+NEED_VORBIS_OBJECTS && recv_errlist_objs="$recv_errlist_objs ogg_afh"
+NEED_SPEEX_OBJECTS && recv_errlist_objs="$recv_errlist_objs spx_afh spx_common"
+NEED_OPUS_OBJECTS && recv_errlist_objs="$recv_errlist_objs opus_afh opus_common"
+NEED_FLAC_OBJECTS && recv_errlist_objs="$recv_errlist_objs flac_afh"
+
+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) $recv_errlist_objs"
 AC_SUBST(receivers, "http dccp udp afh")
 AC_SUBST(recv_objs, add_dot_o($recv_objs))
@@ -1291,30 +973,26 @@ afh_errlist_objs="
 	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 "$have_vorbis" = "yes"; then
+NEED_OGG_OBJECTS && afh_errlist_objs="$afh_errlist_objs ogg_afh_common"
+NEED_VORBIS_OBJECTS && {
 	afh_errlist_objs="$afh_errlist_objs ogg_afh"
 	audio_format_handlers="$audio_format_handlers ogg"
-fi
-if test "$have_speex" = "yes"; then
+}
+NEED_SPEEX_OBJECTS && {
 	afh_errlist_objs="$afh_errlist_objs spx_afh spx_common"
 	audio_format_handlers="$audio_format_handlers spx"
-fi
-if test "$have_opus" = "yes"; then
+}
+NEED_OPUS_OBJECTS && {
 	afh_errlist_objs="$afh_errlist_objs opus_afh opus_common"
 	audio_format_handlers="$audio_format_handlers opus"
-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
+}
+NEED_FLAC_OBJECTS && {
 	afh_errlist_objs="$afh_errlist_objs flac_afh"
 	audio_format_handlers="$audio_format_handlers flac"
+}
+if test $HAVE_FAAD = yes; then
+	afh_errlist_objs="$afh_errlist_objs aac_common aac_afh"
+	audio_format_handlers="$audio_format_handlers aac"
 fi
 
 afh_objs="add_cmdline($afh_cmdline_objs) $afh_errlist_objs"
@@ -1372,35 +1050,34 @@ if test "$have_core_audio" = "yes"; then
 	play_errlist_objs="$play_errlist_objs osx_write ipc"
 	play_cmdline_objs="$play_cmdline_objs osx_write"
 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 "$have_vorbis" = "yes"; then
+NEED_OGG_OBJECTS && play_errlist_objs="$play_errlist_objs ogg_afh_common"
+NEED_VORBIS_OBJECTS && {
 	play_errlist_objs="$play_errlist_objs oggdec_filter ogg_afh"
-fi
-if test "$have_speex" = "yes"; then
+}
+NEED_SPEEX_OBJECTS && {
 	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
+}
+NEED_OPUS_OBJECTS &&
+	play_errlist_objs="$play_errlist_objs
+		opusdec_filter
+		opus_afh
+		opus_common
+	"
+NEED_FLAC_OBJECTS && {
+	play_errlist_objs="$play_errlist_objs flacdec_filter flac_afh"
+}
+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
+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
+if test $HAVE_ALSA = yes; then
 	play_errlist_objs="$play_errlist_objs alsa_write"
 	play_cmdline_objs="$play_cmdline_objs alsa_write"
 fi
@@ -1460,7 +1137,7 @@ if test "$have_oss" = "yes"; then
 	writers="$writers oss"
 	default_writer="OSS_WRITE"
 fi
-if test "$have_alsa" = "yes"; then
+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"
@@ -1580,10 +1257,11 @@ AC_OUTPUT
 AC_MSG_NOTICE([
 paraslash configuration:
 ~~~~~~~~~~~~~~~~~~~~~~~~
+crypto lib: ${CRYPTOLIB:-[none]}
 unix socket credentials: $have_ucred
 readline (interactive CLIs): $have_readline
 audio formats handlers: $audio_format_handlers
-id3 version2 support: $have_libid3tag
+id3 version 2 support: $HAVE_ID3TAG
 filters: $filters
 writers: $writers