Replace gettimeofday() by clock_gettime().
[paraslash.git] / configure.ac
index 32381c6..6f0fbc0 100644 (file)
@@ -1,12 +1,16 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-AC_PREREQ(2.60)
+AC_PREREQ([2.61])
 
 
-AC_INIT(paraslash, [git], maan@systemlinux.org)
+AC_INIT([paraslash],[git],[maan@systemlinux.org])
 AC_CONFIG_HEADER([config.h])
 
+AC_CONFIG_FILES([Makefile])
+AC_DEFUN([add_dot_o],[$(for i in $@; do printf "$i.o "; done)])
+AC_DEFUN([add_para],[$(for i in $@; do printf "para_$i "; 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 $i | tr 'a-z' 'A-Z')), "; done) }])
 AC_PATH_PROG(UNAMEPATH, uname, no)
 if test "$UNAMEPATH" = "no"; then
        AC_MSG_ERROR(unable to determine system type)
@@ -23,9 +27,18 @@ fi
 
 AC_C_BIGENDIAN()
 
+AC_PATH_PROG([gengetopt], [gengetopt])
+test -z "$gengetopt" && AC_MSG_ERROR(
+       [gengetopt is required to build this package])
+
+AC_PATH_PROG([help2man], [help2man])
+test -z "$help2man" && AC_MSG_ERROR(
+       [help2man 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
@@ -66,7 +79,6 @@ AC_FUNC_MKTIME
 AC_FUNC_MMAP
 AC_FUNC_REALLOC
 AC_FUNC_SELECT_ARGTYPES
-AC_TYPE_SIGNAL
 AC_FUNC_STAT
 AC_FUNC_STRFTIME
 AC_FUNC_VPRINTF
@@ -79,28 +91,29 @@ 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])])
 
-cmdline_dir="cmdline"
-AC_SUBST(cmdline_dir)
 AC_DEFUN([add_cmdline],[$(for i in $@; do printf "${i}.cmdline "; done)])
 
 
-all_errlist_objs="server mp3_afh afh_common vss command net string signal time
-daemon stat crypt http_send close_on_fork ipc acl afh fade amp_filter
-dccp_send fd user_list chunk_queue afs aft mood score attribute blob ringbuffer
-playlist 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 udp_send color fec fecdec_filter prebuffer_filter mm
-server_command_list afs_command_list audiod_command_list bitstream imdct wma_afh
-wma_common wmadec_filter buffer_tree
-"
+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"
 
-executables="recv filter audioc write client afh audiod"
+executables="recv filter audioc write client afh audiod play"
 
-recv_cmdline_objs="add_cmdline(recv http_recv dccp_recv udp_recv)"
+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
+"
 
-recv_errlist_objs="http_recv recv_common recv time string net dccp_recv
-       fd sched stdout ggo udp_recv fec buffer_tree"
 recv_ldflags=""
 
 filter_cmdline_objs="add_cmdline(filter compress_filter amp_filter prebuffer_filter)"
@@ -115,10 +128,10 @@ audioc_errlist_objs="audioc string net fd"
 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
+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 crypt fecdec_filter
-       client_common ggo udp_recv color fec prebuffer_filter audiod_command_list
+       recv_common fd sched write_common file_write audiod_command fecdec_filter
+       client_common ggo udp_recv color fec prebuffer_filter
        bitstream imdct wma_common wmadec_filter buffer_tree"
 audiod_ldflags="-lm"
 audiod_audio_formats="wma"
@@ -127,36 +140,32 @@ afh_cmdline_objs="add_cmdline(afh)"
 afh_errlist_objs="afh string fd mp3_afh afh_common time wma_afh wma_common"
 afh_ldflags=""
 
-server_cmdline_objs="add_cmdline(server)"
-server_errlist_objs="server afh_common mp3_afh vss command net string signal
-       time daemon crypt http_send close_on_fork mm
-       ipc dccp_send fd user_list chunk_queue afs aft mood score attribute
-       blob playlist sched acl send_common udp_send color fec
-       server_command_list afs_command_list wma_afh wma_common"
-server_ldflags=""
-server_audio_formats="mp3 wma"
-
 write_cmdline_objs="add_cmdline(write file_write)"
 write_errlist_objs="write write_common file_write time fd string sched stdin
-       buffer_tree ggo"
+       buffer_tree ggo check_wav"
 write_ldflags=""
 writers=" file"
 default_writer="FILE_WRITE"
 
 client_cmdline_objs="add_cmdline(client)"
-client_errlist_objs="client net string crypt fd sched stdin stdout time
-       client_common buffer_tree"
+client_errlist_objs="client net string fd sched stdin stdout time sideband
+       client_common buffer_tree crypt_common"
 client_ldflags=""
 
 gui_cmdline_objs="add_cmdline(gui)"
-gui_errlist_objs="exec signal string stat ringbuffer fd"
-gui_other_objs="gui gui_theme"
-gui_objs="$gui_cmdline_objs $gui_errlist_objs $gui_other_objs"
-
-fade_cmdline_objs="add_cmdline(fade)"
-fade_errlist_objs="fade exec string fd"
-
-
+gui_errlist_objs="exec signal string stat ringbuffer fd gui gui_theme"
+gui_objs="$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
+"
+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
@@ -186,8 +195,8 @@ 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_TRY_RUN(
-[#include <stdio.h>
+[AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <stdio.h>
 
 int main(void)
 {
@@ -201,12 +210,12 @@ int main(void)
     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_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_TRY_RUN(
-[#include <stdio.h>
+[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
 #include <stdarg.h>
 
 int my_vsnprintf (char *buf, const char *tmpl, ...)
@@ -231,24 +240,37 @@ int main(void)
     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_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$ac_cv_have_working_vsnprintf != "xyesyes"; then
 AC_MSG_ERROR([fatal: buggy snprintf() detected])
 fi])
 AX_FUNC_SNPRINTF()
+################################################################## clock_gettime
+clock_gettime_lib=
+AC_CHECK_LIB([c], [clock_gettime], [clock_gettime_lib=c], [
+       AC_CHECK_LIB([rt], [clock_gettime], [clock_gettime_lib=rt], [], [])
+])
+if test -n "$clock_gettime_lib"; then
+       AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [
+               define to 1 if clock_gettime() is supported])
+fi
+if test "$clock_gettime_lib" = "rt"; then
+       AC_SUBST(clock_gettime_ldflags, -lrt)
+fi
 ########################################################################### osl
 have_osl=yes
 OLD_CPPFLAGS="$CPPFLAGS"
 OLD_LD_FLAGS="$LDFLAGS"
 OLD_LIBS="$LIBS"
-AC_ARG_WITH(osl_headers, [AC_HELP_STRING(--with-osl-headers=dir,
+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 $osl_cppflags"
 fi
-AC_ARG_WITH(osl_libs, [AC_HELP_STRING(--with-osl-libs=dir,
+AC_ARG_WITH(osl_libs, [AS_HELP_STRING(--with-osl-libs=dir,
        [look for libosl also in dir])])
 if test -n "$with_osl_libs"; then
        osl_libs="-L$with_osl_libs"
@@ -267,58 +289,141 @@ or execute
 else
        extras="$extras server"
        executables="$executables server"
+       server_cmdline_objs="add_cmdline(server)"
+       server_errlist_objs="server afh_common mp3_afh vss command net
+               string signal time daemon http_send close_on_fork mm
+               crypt_common ipc dccp_send fd user_list chunk_queue
+               afs aft mood score attribute blob playlist sched acl
+               send_common udp_send color fec wma_afh wma_common sideband"
+       all_errlist_objs="$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="$OLD_LDFLAGS"
 LIBS="$OLD_LIBS"
+########################################################################### 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"
+       are thus "openssl" and "gcrypt". If this option is not given,
+       openssl is tried first. If openssl was not found, gcrypt is
+       tried next.])])
+
+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
-OLD_CPPFLAGS="$CPPFLAGS"
-OLD_LD_FLAGS="$LDFLAGS"
-OLD_LIBS="$LIBS"
-have_openssl="yes"
-AC_ARG_WITH(openssl_headers, [AC_HELP_STRING(--with-openssl-headers=dir,
-       [look for openssl headers also in dir])])
-if test -n "$with_openssl_headers"; then
-       openssl_cppflags="-I$with_openssl_headers"
-       CPPFLAGS="$CPPFLAGS $openssl_cppflags"
-fi
-AC_ARG_WITH(openssl_libs, [AC_HELP_STRING(--with-openssl-libs=dir,
-       [look for openssl libraries also in dir])])
-if test -n "$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 $openssl_libs"
-       # clear cache
-       unset ac_cv_header_openssl_ssl_h 2> /dev/null
-       unset ac_cv_lib_crypto_RAND_bytes 2> /dev/null
-       AC_CHECK_HEADER(openssl/ssl.h, [have_openssl="yes"], [])
+if test "$check_openssl" = "yes"; then
+       OLD_CPPFLAGS="$CPPFLAGS"
+       OLD_LD_FLAGS="$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 "$have_openssl" = "yes"; then
-               AC_CHECK_LIB([crypto], [RAND_bytes], [], [have_openssl="no"])
+               AC_DEFINE(HAVE_OPENSSL, 1, [define to 1 to turn on openssl support])
+               AC_SUBST(openssl_cppflags)
+               openssl_libs="$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="$audiod_errlist_objs crypt"
+
+               check_gcrypt="no"
+       else
+               AC_MSG_WARN([openssl libraries not found])
        fi
+       CPPFLAGS="$OLD_CPPFLAGS"
+       LDFLAGS="$OLD_LDFLAGS"
+       LIBS="$OLD_LIBS"
+else
+       have_openssl="no"
 fi
-if test "$have_openssl" = "yes"; then
-       AC_DEFINE(HAVE_OPENSSL, 1, [define to 1 to turn on openssl support])
-       AC_SUBST(openssl_cppflags)
-       openssl_libs="$openssl_libs -lssl -lcrypto"
-       server_ldflags="$server_ldflags $openssl_libs"
-       client_ldflags="$client_ldflags $openssl_libs"
-       audiod_ldflags="$audiod_ldflags $openssl_libs"
+########################################################################### gcrypt
+if test "$check_gcrypt" = "yes"; then
+       OLD_CPPFLAGS="$CPPFLAGS"
+       OLD_LD_FLAGS="$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_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="$audiod_errlist_objs gcrypt"
+       else
+               AC_MSG_WARN([gcrypt library not found])
+       fi
+       CPPFLAGS="$OLD_CPPFLAGS"
+       LDFLAGS="$OLD_LDFLAGS"
+       LIBS="$OLD_LIBS"
 else
-       AC_MSG_ERROR([openssl libraries not found])
+       have_gcrypt="no"
+fi
+###########################################################################
+if test "$have_openssl" = "no" -a "$have_gcrypt" = "no"; then
+       AC_MSG_ERROR([neither openssl nor gcrypt usable])
 fi
-CPPFLAGS="$OLD_CPPFLAGS"
-LDFLAGS="$OLD_LDFLAGS"
-LIBS="$OLD_LIBS"
 ########################################################################### libsocket
 AC_CHECK_LIB([c], [socket],
        [socket_lib=],
@@ -346,13 +451,13 @@ AC_SEARCH_LIBS([inet_ntoa],[nsl],[],[
 ],[])
 ########################################################################### ucred
 AC_MSG_CHECKING(for struct ucred)
-AC_TRY_LINK([
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[
        #define _GNU_SOURCE
        #include <sys/types.h>
        #include <sys/socket.h>
-],[
+]], [[
        struct ucred sucred; sucred.pid=0;
-],[have_ucred=yes],[have_ucred=no])
+]])],[have_ucred=yes],[have_ucred=no])
 AC_MSG_RESULT($have_ucred)
 if test ${have_ucred} = yes; then
        AC_DEFINE(HAVE_UCRED, 1, define to 1 you have struct ucred)
@@ -363,13 +468,13 @@ have_curses="yes"
 OLD_CPPFLAGS="$CPPFLAGS"
 OLD_LD_FLAGS="$LDFLAGS"
 OLD_LIBS="$LIBS"
-AC_ARG_WITH(curses_headers, [AC_HELP_STRING(--with-curses-headers=dir,
+AC_ARG_WITH(curses_headers, [AS_HELP_STRING(--with-curses-headers=dir,
        [look for curses.h also in dir])])
 if test -n "$with_curses_headers"; then
        curses_cppflags="-I$with_curses_headers"
        CPPFLAGS="$CPPFLAGS $curses_cppflags"
 fi
-AC_ARG_WITH(curses_libs, [AC_HELP_STRING(--with-curses-libs=dir,
+AC_ARG_WITH(curses_libs, [AS_HELP_STRING(--with-curses-libs=dir,
        [look for libcurses also in dir])])
 if test -n "$with_curses_libs"; then
        curses_libs="-L$with_curses_libs"
@@ -387,7 +492,7 @@ if test "$have_curses" = "yes"; then
        extras="$extras gui"
        executables="$executables gui"
 else
-       AC_MSG_WARN([cannot build para_gui])
+       AC_MSG_WARN([no curses lib, cannot build para_gui])
 fi
 CPPFLAGS="$OLD_CPPFLAGS"
 LDFLAGS="$OLD_LDFLAGS"
@@ -395,13 +500,13 @@ LIBS="$OLD_LIBS"
 
 ########################################################################### ip_mreqn
 AC_MSG_CHECKING(for struct ip_mreqn (UDPv4 multicast))
-AC_TRY_LINK([
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[
        #include <netdb.h>
        #include <net/if.h>
-],[
+]], [[
        struct ip_mreqn mn;
        mn.imr_ifindex = 0;
-],[have_ip_mreqn=yes],[have_ip_mreqn=no])
+]])],[have_ip_mreqn=yes],[have_ip_mreqn=no])
 AC_MSG_RESULT($have_ip_mreqn)
 if test ${have_ip_mreqn} = yes; then
        AC_DEFINE(HAVE_IP_MREQN, 1, define to 1 you have struct ip_mreqn)
@@ -409,11 +514,11 @@ fi
 ########################################################################### osx
 
 AC_MSG_CHECKING(for CoreAudio (MacOs))
-AC_TRY_LINK([
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[
        #include <CoreAudio/CoreAudio.h>
-],[
+]], [[
        AudioDeviceID id;
-],[have_core_audio=yes],[have_core_audio=no])
+]])],[have_core_audio=yes],[have_core_audio=no])
 AC_MSG_RESULT($have_core_audio)
 if test ${have_core_audio} = yes; then
        f1="-framework CoreAudio"
@@ -423,11 +528,21 @@ if test ${have_core_audio} = yes; then
        f="$f1 $f2 $f3 $f4"
 
        all_errlist_objs="$all_errlist_objs osx_write"
-       audiod_errlist_objs="$audiod_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"
 
-       write_errlist_objs="$write_errlist_objs osx_write"
+       play_errlist_objs="$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"
@@ -439,17 +554,17 @@ have_ogg="yes"
 OLD_CPPFLAGS="$CPPFLAGS"
 OLD_LD_FLAGS="$LDFLAGS"
 OLD_LIBS="$LIBS"
-AC_ARG_WITH(ogg_headers, [AC_HELP_STRING(--with-ogg-headers=dir,
+AC_ARG_WITH(ogg_headers, [AS_HELP_STRING(--with-ogg-headers=dir,
        [look for ogg headers also in dir])])
-AC_ARG_WITH(ogg_libs, [AC_HELP_STRING(--with-ogg-libs=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, [AC_HELP_STRING(--with-vorbis-headers=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, [AC_HELP_STRING(--with-vorbis-libs=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, [AC_HELP_STRING(--with-speex-headers=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, [AC_HELP_STRING(--with-speex-libs=dir,
+AC_ARG_WITH(speex_libs, [AS_HELP_STRING(--with-speex-libs=dir,
        [look for speex libs also in dir])])
 
 if test -n "$with_ogg_headers"; then
@@ -490,6 +605,7 @@ if test "$have_ogg" = "yes"; then
        AC_CHECK_LIB([speex], [speex_decoder_init], [], [ have_speex="no" ])
        AC_CHECK_HEADERS([speex/speex.h], [], [ have_speex="no" ])
 else
+       AC_MSG_WARN([vorbis/speex depend on libogg, which was not detected])
        have_vorbis="no"
        have_speex="no"
 fi
@@ -504,12 +620,14 @@ if test "$have_vorbis" = "yes" || test "$have_speex" = "yes"; then
        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="$server_errlist_objs ogg_afh_common"
-else
-       AC_MSG_WARN([vorbis/speex require ogg])
+       play_errlist_objs="$play_errlist_objs ogg_afh_common"
 fi
 if test "$have_vorbis" = "yes"; then
        all_errlist_objs="$all_errlist_objs oggdec_filter ogg_afh"
@@ -519,15 +637,19 @@ if test "$have_vorbis" = "yes"; then
        server_ldflags="$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="$audiod_audio_formats ogg"
-       server_audio_formats="$server_audio_formats ogg"
+       audio_format_handlers="$audio_format_handlers ogg"
 else
        AC_MSG_WARN([no ogg/vorbis $msg])
 fi
@@ -539,15 +661,19 @@ if test "$have_speex" = "yes"; then
        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="$audiod_audio_formats spx"
-       server_audio_formats="$server_audio_formats spx"
+       audio_format_handlers="$audio_format_handlers spx"
 else
        AC_MSG_WARN([no ogg/speex $msg])
 fi
@@ -559,13 +685,13 @@ have_faad=yes
 OLD_CPPFLAGS="$CPPFLAGS"
 OLD_LD_FLAGS="$LDFLAGS"
 OLD_LIBS="$LIBS"
-AC_ARG_WITH(faad_headers, [AC_HELP_STRING(--with-faad-headers=dir,
+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 $faad_cppflags"
 fi
-AC_ARG_WITH(faad_libs, [AC_HELP_STRING(--with-faad-libs=dir,
+AC_ARG_WITH(faad_libs, [AS_HELP_STRING(--with-faad-libs=dir,
        [look for libfaad also in dir])])
 if test -n "$with_faad_libs"; then
        faad_libs="-L$with_faad_libs"
@@ -579,13 +705,19 @@ if test "$have_faad" = "yes"; then
        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"
-       server_audio_formats="$server_audio_formats aac"
+       audio_format_handlers="$audio_format_handlers aac"
        filters="$filters aacdec"
        AC_SUBST(faad_cppflags)
 else
@@ -600,13 +732,13 @@ OLD_CPPFLAGS="$CPPFLAGS"
 OLD_LD_FLAGS="$LDFLAGS"
 OLD_LIBS="$LIBS"
 
-AC_ARG_WITH(mad_headers, [AC_HELP_STRING(--with-mad-headers=dir,
+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 $mad_cppflags"
 fi
-AC_ARG_WITH(mad_libs, [AC_HELP_STRING(--with-mad-libs=dir,
+AC_ARG_WITH(mad_libs, [AS_HELP_STRING(--with-mad-libs=dir,
        [look for libmad also in dir])])
 if test -n "$with_mad_libs"; then
        mad_libs="-L$with_mad_libs"
@@ -622,11 +754,14 @@ if test "$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="$filters mp3dec"
        AC_SUBST(mad_cppflags)
@@ -637,43 +772,120 @@ CPPFLAGS="$OLD_CPPFLAGS"
 LDFLAGS="$OLD_LDFLAGS"
 LIBS="$OLD_LIBS"
 ###################################################################### libid3tag
+OLD_CPPFLAGS="$CPPFLAGS"
+OLD_LD_FLAGS="$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 $id3tag_libs"
+fi
+
 AC_MSG_CHECKING(for libid3tag)
-AC_TRY_LINK([
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[
        #include <id3tag.h>
-],[
+]], [[
        struct id3_tag t = {.flags = 0};
-],[have_libid3tag=yes],[have_libid3tag=no])
+]])],[],[have_libid3tag=no])
 AC_MSG_RESULT($have_libid3tag)
+
 if test ${have_libid3tag} = yes; then
        AC_DEFINE(HAVE_LIBID3TAG, 1, define to 1 you have libid3tag)
-       server_ldflags="$server_ldflags -lid3tag"
-       afh_ldflags="$afh_ldflags -lid3tag"
+       server_ldflags="$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 $id3tag_libs -lid3tag"
+       AC_SUBST(id3tag_cppflags)
 else
        AC_MSG_WARN([no support for id3v2 tags])
 fi
+CPPFLAGS="$OLD_CPPFLAGS"
+LDFLAGS="$OLD_LDFLAGS"
+LIBS="$OLD_LIBS"
+########################################################################### flac
+OLD_CPPFLAGS="$CPPFLAGS"
+OLD_LD_FLAGS="$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 $flac_libs"
+fi
+AC_CHECK_HEADER(FLAC/stream_decoder.h, [], have_flac=no)
+AC_CHECK_LIB([FLAC], [FLAC__stream_decoder_init_file], [], have_flac=no, -logg -lm)
+if test "$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 $flac_libs -lFLAC"
+       recv_ldflags="$afh_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)
+else
+       AC_MSG_WARN([no flac support in para_audiod/para_filter/para_afh/para_server])
+fi
+CPPFLAGS="$OLD_CPPFLAGS"
+LDFLAGS="$OLD_LDFLAGS"
+LIBS="$OLD_LIBS"
 ########################################################################### oss
 OLD_CPPFLAGS="$CPPFLAGS"
 OLD_LD_FLAGS="$LDFLAGS"
 OLD_LIBS="$LIBS"
 
 have_oss="yes"
-msg="=> will not build para_fade/oss writer"
+msg="=> will not build oss writer"
 
 AC_CHECK_HEADER(sys/soundcard.h, [
-       extras="$extras fade"
-       executables="$executables fade"
-       all_errlist_objs="$all_errlist_objs oss_write"
        audiod_errlist_objs="$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="$write_ldflags -lossaudio"
-                       fade_ldflags="$write_ldflags -lossaudio"
+                       fade_ldflags="$fade_ldflags -lossaudio"
                ]
        )
        ],
@@ -712,29 +924,242 @@ if test "$have_alsa" = "yes"; then
 fi
 
 if test "$have_alsa" = "yes"; then
-       all_errlist_objs="$all_errlist_objs alsa_write"
        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"
 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"
+       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_LD_FLAGS="$LDFLAGS"
+OLD_LIBS="$LIBS"
 
-AC_SUBST(install_sh, [$INSTALL])
-AC_CONFIG_FILES([Makefile])
+have_ao="yes"
+AC_ARG_WITH(ao_headers, [AS_HELP_STRING(--with-ao-headers=dir,
+       [look for ao/ao.h also in dir])])
+if test -n "$with_ao_headers"; then
+       ao_cppflags="-I$with_ao_headers"
+       CPPFLAGS="$CPPFLAGS $ao_cppflags"
+fi
+AC_ARG_WITH(ao_libs, [AS_HELP_STRING(--with-ao-libs=dir,
+       [look for libao also in dir])])
+if test -n "$with_ao_libs"; then
+       ao_libs="-L$with_ao_libs"
+       LDFLAGS="$LDFLAGS $ao_libs"
+fi
+msg="no libao support for para_audiod/para_write"
+AC_CHECK_HEADERS([ao/ao.h], [
+       ], [
+       have_ao="no"
+       AC_MSG_WARN([ao.h not found, $msg])
+])
+if test "$have_ao" = "yes"; then
+       AC_CHECK_LIB([ao], [ao_initialize], [], [
+               have_ao="no"
+               AC_MSG_WARN([ao lib not found or not working, $msg])
+       ])
+fi
+if test "$have_ao" = "yes"; then
+       AC_CHECK_HEADERS([pthread.h], [
+               ], [
+               have_ao="no"
+               AC_MSG_WARN([pthread.h not found, $msg])
+       ])
+fi
+if test "$have_ao" = "yes"; then
+       AC_CHECK_LIB([pthread], [pthread_create], [], [
+               have_ao="no"
+               AC_MSG_WARN([pthread lib not found or not working, $msg])
+       ])
+fi
+if test "$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)
+fi
 
+CPPFLAGS="$OLD_CPPFLAGS"
+LDFLAGS="$OLD_LDFLAGS"
+LIBS="$OLD_LIBS"
+############################################################# readline
+OLD_CPPFLAGS="$CPPFLAGS"
+OLD_LD_FLAGS="$LDFLAGS"
+OLD_LIBS="$LIBS"
 
-AC_DEFUN([add_dot_o],[$(for i in $@; do printf "$i.o "; done)])
-AC_DEFUN([add_para],[$(for i in $@; do printf "para_$i "; 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 $i | tr 'a-z' 'A-Z')), "; done) }])
+have_readline="yes"
+AC_ARG_WITH(readline_headers, [AS_HELP_STRING(--with-readline-headers=dir,
+       [look for libreadline header files also in dir])])
+if test -n "$with_readline_headers"; then
+       readline_cppflags="-I$with_readline_headers"
+       CPPFLAGS="$CPPFLAGS $readline_cppflags"
+fi
+
+AC_ARG_WITH(readline_libs, [AS_HELP_STRING(--with-readline-libs=dir,
+       [look for readline library also in dir])])
+if test -n "$with_readline_libs"; then
+       readline_libs="-L$with_readline_libs"
+       LDFLAGS="$LDFLAGS $readline_libs"
+fi
+msg="no interactive cli support"
+AC_CHECK_HEADERS([readline/readline.h], [
+       ], [
+       have_readline="no"
+       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="$readline_libs -lreadline"
+       AC_SEARCH_LIBS([rl_free_keymap], [readline], [], [have_readline="no"])
+       if test "$have_readline" = "no"; then # try with -lcurses
+                # clear cache
+               AC_MSG_NOTICE([trying again with -lcurses])
+                unset ac_cv_search_rl_free_keymap 2> /dev/null
+               AC_SEARCH_LIBS([rl_free_keymap], [readline], [
+                       have_readline=yes
+                       readline_libs="$readline_libs -lcurses"
+               ], [], [-lcurses])
+       fi
+       if test "$have_readline" = "no"; then # try with -ltermcap
+                # clear cache
+               AC_MSG_NOTICE([trying again with -ltermcap])
+                unset ac_cv_search_rl_free_keymap 2> /dev/null
+               AC_SEARCH_LIBS([rl_free_keymap], [readline], [
+                       have_readline=yes
+                       readline_libs="$readline_libs -ltermcap"
+               ], [], [-ltermcap])
+       fi
+fi
+
+if test "$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 $readline_libs"
+       AC_SUBST(readline_cppflags)
+       AC_DEFINE(HAVE_READLINE, 1, define to 1 to turn on readline support)
+else
+       AC_MSG_WARN([libreadline not found or unusable])
+fi
+CPPFLAGS="$OLD_CPPFLAGS"
+LDFLAGS="$OLD_LDFLAGS"
+LIBS="$OLD_LIBS"
+############################################################# libsamplerate
+OLD_CPPFLAGS="$CPPFLAGS"
+OLD_LD_FLAGS="$LDFLAGS"
+OLD_LIBS="$LIBS"
+
+have_samplerate="yes"
+AC_ARG_WITH(samplerate_headers, [AS_HELP_STRING(--with-samplerate-headers=dir,
+       [look for samplerate headers also in dir])])
+if test -n "$with_samplerate_headers"; then
+       samplerate_cppflags="-I$with_samplerate_headers"
+       CPPFLAGS="$CPPFLAGS $samplerate_cppflags"
+fi
+AC_ARG_WITH(samplerate_libs, [AS_HELP_STRING(--with-samplerate-libs=dir,
+       [look for samplerate libs also in dir])])
+if test -n "$with_samplerate_libs"; then
+       samplerate_libs="-L$with_samplerate_libs"
+       LDFLAGS="$LDFLAGS $samplerate_libs"
+fi
+
+AC_CHECK_HEADER(samplerate.h, [], have_samplerate=no)
+AC_CHECK_LIB([samplerate], [src_process], [], have_samplerate=no, [])
+
+if test "$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)
+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
@@ -746,7 +1171,7 @@ for obj in $all_errlist_objs; do
 done
 AC_DEFINE_UNQUOTED(DEFINE_ERRLIST_OBJECT_ENUM,
        [enum {$SS NUM_SS}],
-       [list of all objects that use paraslash's error facility]
+       [list of all objects that use the paraslash error facility]
 )
 
 ################################################################## status items
@@ -773,7 +1198,7 @@ done
 AC_DEFINE_UNQUOTED(STATUS_ITEM_ARRAY, [$result],
        [char * array of all status items])
 
-AC_DEFINE_UNQUOTED(SERVER_AUDIO_FORMATS, "$server_audio_formats",
+AC_DEFINE_UNQUOTED(AUDIO_FORMAT_HANDLERS, "$audio_format_handlers",
        [formats supported by para_server and para_afh])
 
 AC_SUBST(executables, add_para($executables))
@@ -786,7 +1211,8 @@ write_objs="$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 $afh_errlist_objs"
-fade_objs="$fade_cmdline_objs $fade_errlist_objs"
+play_objs="$play_cmdline_objs $play_errlist_objs"
+
 
 AC_SUBST(recv_objs, add_dot_o($recv_objs))
 AC_SUBST(recv_ldflags, $recv_ldflags)
@@ -832,11 +1258,12 @@ AC_SUBST(gui_objs, add_dot_o($gui_objs))
 AC_DEFINE_UNQUOTED(INIT_GUI_ERRLISTS,
        objlist_to_errlist($gui_errlist_objs), errors used by para_gui)
 
-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)
+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)
 
+AC_MSG_NOTICE(play objs: $play_objs)
 
 enum="$(for i in $filters; do printf "${i}_FILTER, " | tr '[a-z]' '[A-Z]'; done)"
 AC_DEFINE_UNQUOTED(FILTER_ENUM, $enum NUM_SUPPORTED_FILTERS,
@@ -868,9 +1295,11 @@ AC_MSG_NOTICE([
 paraslash configuration:
 ~~~~~~~~~~~~~~~~~~~~~~~~
 unix socket credentials: $have_ucred
-audio formats supported by para_server/para_afh: $server_audio_formats
+readline (interactive CLIs): $have_readline
+audio formats handlers: $audio_format_handlers
 id3 version2 support: $have_libid3tag
-filters supported by para_audiod/para_filter: $filters
-writers supported by para_audiod/para_write: $writers
+filters: $filters
+writers: $writers
 optional executables: $extras
+$mixer_summary
 ])