EVOLUTION-MANAGER

Edit File: alsa.m4

dnl Configure Paths for Alsa dnl Some modifications by Richard Boulton <richard-alsa@tartarus.org> dnl Christopher Lansdown <lansdoct@cs.alfred.edu> dnl Jaroslav Kysela <perex@perex.cz> dnl Last modification: $Id: alsa.m4,v 1.24 2004/09/15 18:48:07 tiwai Exp $ dnl AM_PATH_ALSA([MINIMUM-VERSION [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) dnl Test for libasound, and define ALSA_CFLAGS and ALSA_LIBS as appropriate. dnl enables arguments --with-alsa-prefix= dnl --with-alsa-enc-prefix= dnl --disable-alsatest dnl dnl For backwards compatibility, if ACTION_IF_NOT_FOUND is not specified, dnl and the alsa libraries are not found, a fatal AC_MSG_ERROR() will result. dnl AC_DEFUN([AM_PATH_ALSA], [dnl Save the original CFLAGS, LDFLAGS, and LIBS alsa_save_CFLAGS="$CFLAGS" alsa_save_LDFLAGS="$LDFLAGS" alsa_save_LIBS="$LIBS" alsa_found=yes dnl dnl Get the cflags and libraries for alsa dnl AC_ARG_WITH(alsa-prefix, [ --with-alsa-prefix=PFX Prefix where Alsa library is installed(optional)], [alsa_prefix="$withval"], [alsa_prefix=""]) AC_ARG_WITH(alsa-inc-prefix, [ --with-alsa-inc-prefix=PFX Prefix where include libraries are (optional)], [alsa_inc_prefix="$withval"], [alsa_inc_prefix=""]) dnl FIXME: this is not yet implemented AC_ARG_ENABLE(alsatest, [ --disable-alsatest Do not try to compile and run a test Alsa program], [enable_alsatest="$enableval"], [enable_alsatest=yes]) dnl Add any special include directories AC_MSG_CHECKING(for ALSA CFLAGS) if test "$alsa_inc_prefix" != "" ; then ALSA_CFLAGS="$ALSA_CFLAGS -I$alsa_inc_prefix" CFLAGS="$CFLAGS -I$alsa_inc_prefix" fi AC_MSG_RESULT($ALSA_CFLAGS) AC_CHECK_LIB(c, dlopen, LIBDL="", [AC_CHECK_LIB(dl, dlopen, LIBDL="-ldl")]) dnl add any special lib dirs AC_MSG_CHECKING(for ALSA LDFLAGS) if test "$alsa_prefix" != "" ; then ALSA_LIBS="$ALSA_LIBS -L$alsa_prefix" LDFLAGS="$LDFLAGS $ALSA_LIBS" fi dnl add the alsa library ALSA_LIBS="$ALSA_LIBS -lasound -lm $LIBDL -lpthread" LIBS="$ALSA_LIBS $LIBS" AC_MSG_RESULT($ALSA_LIBS) dnl Check for a working version of libasound that is of the right version. if test "x$enable_alsatest" = "xyes"; then min_alsa_version=ifelse([$1], ,0.1.1,$1) AC_MSG_CHECKING(for libasound headers version >= $min_alsa_version) no_alsa="" alsa_min_major_version=`echo $min_alsa_version | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` alsa_min_minor_version=`echo $min_alsa_version | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` alsa_min_micro_version=`echo $min_alsa_version | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` AC_LANG_SAVE AC_LANG_C AC_TRY_COMPILE([ #include <alsa/asoundlib.h> ], [ /* ensure backward compatibility */ #if !defined(SND_LIB_MAJOR) && defined(SOUNDLIB_VERSION_MAJOR) #define SND_LIB_MAJOR SOUNDLIB_VERSION_MAJOR #endif #if !defined(SND_LIB_MINOR) && defined(SOUNDLIB_VERSION_MINOR) #define SND_LIB_MINOR SOUNDLIB_VERSION_MINOR #endif #if !defined(SND_LIB_SUBMINOR) && defined(SOUNDLIB_VERSION_SUBMINOR) #define SND_LIB_SUBMINOR SOUNDLIB_VERSION_SUBMINOR #endif # if(SND_LIB_MAJOR > $alsa_min_major_version) exit(0); # else # if(SND_LIB_MAJOR < $alsa_min_major_version) # error not present # endif # if(SND_LIB_MINOR > $alsa_min_minor_version) exit(0); # else # if(SND_LIB_MINOR < $alsa_min_minor_version) # error not present # endif # if(SND_LIB_SUBMINOR < $alsa_min_micro_version) # error not present # endif # endif # endif exit(0); ], [AC_MSG_RESULT(found.)], [AC_MSG_RESULT(not present.) ifelse([$3], , [AC_MSG_ERROR(Sufficiently new version of libasound not found.)]) alsa_found=no] ) AC_LANG_RESTORE fi dnl Now that we know that we have the right version, let's see if we have the library and not just the headers. if test "x$enable_alsatest" = "xyes"; then AC_CHECK_LIB([asound], [snd_ctl_open],, [ifelse([$3], , [AC_MSG_ERROR(No linkable libasound was found.)]) alsa_found=no] ) fi if test "x$alsa_found" = "xyes" ; then ifelse([$2], , :, [$2]) LIBS=`echo $LIBS | sed 's/-lasound//g'` LIBS=`echo $LIBS | sed 's/ //'` LIBS="-lasound $LIBS" fi if test "x$alsa_found" = "xno" ; then ifelse([$3], , :, [$3]) CFLAGS="$alsa_save_CFLAGS" LDFLAGS="$alsa_save_LDFLAGS" LIBS="$alsa_save_LIBS" ALSA_CFLAGS="" ALSA_LIBS="" fi dnl That should be it. Now just export out symbols: AC_SUBST(ALSA_CFLAGS) AC_SUBST(ALSA_LIBS) ])