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91 lines
2.9 KiB
Text
91 lines
2.9 KiB
Text
dnl Configure Paths for Alsa
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dnl Christopher Lansdown (lansdoct@cs.alfred.edu)
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dnl 29/10/1998
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dnl AM_PATH_ALSA(MINIMUM-VERSION)
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dnl Test for libasound, and define ALSA_CFLAGS and ALSA_LIBS as appropriate.
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dnl enables arguments --with-alsa-prefix= --with-alsa-enc-prefix= --disable-alsatest
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dnl
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AC_DEFUN(AM_PATH_ALSA,
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[dnl
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dnl Get the clfags and libraries for alsa
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dnl
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AC_ARG_WITH(alsa-prefix,[ --with-alsa-prefix=PFX Prefix where Alsa library is installed(optional)],
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[alsa_prefix="$withval"], [alsa_prefix=""])
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AC_ARG_WITH(alsa-inc-prefix, [ --with-alsa-inc-prefix=PFX Prefix where include libraries are (optional)],
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[alsa_in_prefix="$withval"], [alsa_inc_prefix=""])
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AC_ARG_ENABLE(alsatest, [ --disable-alsatest Do not try to compile and run a test Alsa program], [enable_alsatest=no], [enable_alsatest=yes])
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dnl Add any special include directories
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AC_MSG_CHECKING(for ALSA CFLAGS)
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if test "$alsa_inc_prefix" != "" ; then
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ALSA_CFLAGS="$ALSA_CFLAGS -I$alsa_inc_prefix"
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CFLAGS="-I$alsa_inc_prefix"
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fi
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AC_MSG_RESULT($ALSA_CFLAGS)
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dnl add any special lib dirs
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AC_MSG_CHECKING(for ALSA LDFLAGS)
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if test "$alsa_prefix" != "" ; then
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ALSA_LIBS="$ALSA_LIBS -L$alsa_prefix"
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LIBS="-L$alsa_prefix"
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fi
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dnl add the alsa library
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ALSA_LIBS="$ALSA_LIBS -lasound"
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LIBS="$ALSA_LIBS -lasound"
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AC_MSG_RESULT($ALSA_LIBS)
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dnl Check for the presence of the library
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dnl if test $enable_alsatest = yes; then
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dnl AC_MSG_CHECKING(for working libasound)
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dnl AC_TRY_RUN([
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dnl #include <sys/asoundlib.h>
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dnl void main(void)
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dnl {
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dnl snd_cards();
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dnl exit(0);
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dnl }
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dnl ],
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dnl [AC_MSG_RESULT("present")],
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dnl [AC_MSG_RESULT("not found. ")
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dnl AC_MSG_ERROR(Fatal error: Install alsa-lib package or use --with-alsa-prefix option...)],
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dnl [AC_MSG_RESULT(unsopported)
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dnl AC_MSG_ERROR(Cross-compiling isn't supported...)]
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dnl )
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dnl fi
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dnl Check for a working version of libasound that is of the right version.
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min_alsa_version=ifelse([$1], ,0.1.1,$1)
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AC_MSG_CHECKING(for libasound version >= $min_alsa_version)
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no_alsa=""
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alsa_min_major_version=`echo $min_alsa_version | \
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
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alsa_min_minor_version=`echo $min_alsa_version | \
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
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alsa_min_micro_version=`echo $min_alsa_version | \
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
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AC_TRY_RUN([
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#include <sys/asoundlib.h>
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void main(void)
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{
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if(SOUNDLIB_VERSION_MAJOR >= $alsa_min_major_version)
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if(SOUNDLIB_VERSION_MINOR >= $alsa_min_minor_version)
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if(SOUNDLIB_VERSION_SUBMINOR >= $alsa_min_micro_version)
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exit(0);
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exit(1);
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}
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],
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[AC_MSG_RESULT("found.")],
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[AC_MSG_RESULT("not present.")
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AC_MSG_ERROR(Fatal error: Installed version of alsa-lib is too old.)],
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[AC_MSG_RESULT("not supported")
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AC_MSG_ERROR(Fatal error: Cross-compiling is not supported...)]
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)
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dnl That should be it. Now just export out symbols:
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AC_SUBST(ALSA_CFLAGS)
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AC_SUBST(ALSA_LIBS)
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])
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