ref: 06d6a95d2dc59f83ce8c63a058fa789456203d41
dir: /m4/sndfile.m4/
dnl SOX_PATH_SNDFILE
dnl Based off of shout.m4 from xiph package.
dnl cbagwell@users.sourceforge.net 1-3-2007
dnl
dnl Original Authors:
dnl Jack Moffitt <jack@icecast.org> 08-06-2001
dnl Rewritten for libshout 2
dnl Brendan Cully <brendan@xiph.org> 20030612
dnl
# SOX_PATH_SNDFILE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
# Test for libsndfile, and define SNDFILE_CFLAGS and SNDFILE_LIBS
AC_DEFUN([SOX_PATH_SNDFILE],
[dnl
have_sndfile="no"
SNDFILE_CFLAGS=""
SNDFILE_LIBS=""
# Step 1: Use pkg-config if available
m4_ifdef([PKG_CHECK_MODULES],
[# PKG_CHECK_MODULES available
PKG_CHECK_MODULES([SNDFILE], [sndfile], [$1], [$2])
have_sndfile="maybe"],
[# PKG_CHECK_MODULES is unavailable, search for pkg-config program
AC_PATH_PROG([PKGCONFIG], [pkg-config], [none])
if test "$PKGCONFIG" != "none" && `$PKGCONFIG --exists sndfile`
then
SNDFILE_CFLAGS=`$PKGCONFIG --cflags sndfile`
SNDFILE_LIBS=`$PKGCONFIG --libs sndfile`
have_sndfile="maybe"
else
if test "$PKGCONFIG" != "none"
then
AC_MSG_NOTICE([$PKGCONFIG couldn't find libsndfile. Try adjusting PKG_CONFIG_PATH.])
fi
# libsndfile doesn't have sndfile-config but other
# packages do and so keep around as an example.
# Step 2: try sndfile-config
#AC_PATH_PROG([SNDFILECONFIG], [sndfile-config], [none])
#if test "$SNDFILECONFIG" != "none" && test `$SNDFILECONFIG --package` = "libsndfile"
#then
# SNDFILE_CFLAGS=`$SNDFILECONFIG --cflags`
# SNDFILE_LIBS=`$SNDFILECONFIG --libs`
# have_sndfile="maybe"
#fi
fi
])
# Now try actually using libsndfile
if test "$have_sndfile" != "no"
then
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $SNDFILE_CFLAGS"
LIBS="$LIBS $SNDFILE_LIBS"
AC_CHECK_HEADER([sndfile.h], [
AC_DEFINE([HAVE_SNDFILE_H], 1, [Define if you have <sndfile.h>])
AC_CHECK_FUNC([sf_open], [
ifelse([$1], , :, [$1])
have_sndfile="yes"
])
])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
if test "$have_sndfile" != "yes"
then
ifelse([$2], , :, [$2])
fi
])dnl SOX_PATH_SNDFILE