ref: 957fff9a40655b51d692220336af53c68607a7b0
dir: /m4/samplerate.m4/
dnl SOX_PATH_SAMPLERATE 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_SAMPLERATE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) # Test for libsamplerate, and define SAMPLERATE_CFLAGS and SAMPLERATE_LIBS AC_DEFUN([SOX_PATH_SAMPLERATE], [dnl # Step 1: Use pkg-config if available m4_ifdef([PKG_CHECK_MODULES], [# PKG_CHECK_MODULES available PKG_CHECK_MODULES(SAMPLERATE, samplerate, have_samplerate="maybe", have_samplerate="no")], [# PKG_CHECK_MODULES is unavailable, search for pkg-config program AC_PATH_PROG([PKGCONFIG], [pkg-config], [none]) if test "$PKGCONFIG" != "none" && `$PKGCONFIG --exists samplerate` then SAMPLERATE_CFLAGS=`$PKGCONFIG --cflags samplerate` SAMPLERATE_LIBS=`$PKGCONFIG --libs samplerate` have_samplerate="maybe" else if test "$PKGCONFIG" != "none" then AC_MSG_NOTICE([$PKGCONFIG couldn't find libsamplerate. Try adjusting PKG_CONFIG_PATH.]) fi # libsamplerate doesn't have samplerate-config but other # packages do and so keep around as an example. # Step 2: try samplerate-config #AC_PATH_PROG([SAMPLERATECONFIG], [samplerate-config], [none]) #if test "$SAMPLERATECONFIG" != "none" && test `$SAMPLERATECONFIG --package` = "libsamplerate" #then # SAMPLERATE_CFLAGS=`$SAMPLERATECONFIG --cflags` # SAMPLERATE_LIBS=`$SAMPLERATECONFIG --libs` # have_samplerate="maybe" #fi fi ]) # Now try actually using libsamplerate if test "$have_samplerate" != "no" then ac_save_CFLAGS="$CFLAGS" ac_save_LIBS="$LIBS" CFLAGS="$CFLAGS $SAMPLERATE_CFLAGS" LIBS="$LIBS $SAMPLERATE_LIBS" AC_CHECK_HEADER([samplerate.h], [ AC_DEFINE([HAVE_SAMPLERATE_H], 1, [Define if you have <samplerate.h>]) AC_CHECK_FUNC([src_new], [ ifelse([$1], , :, [$1]) have_samplerate="yes" ]) ]) CFLAGS="$ac_save_CFLAGS" LIBS="$ac_save_LIBS" fi if test "$have_samplerate" != "yes" then ifelse([$2], , :, [$2]) fi ])dnl SOX_PATH_SAMPLERATE