ref: 6e2dd16f0a59e6daca0a8de43a1def3dbf1322a3
parent: 865124f79ca0bbd34e8ad462fdd915e2a706c1c6
author: Gregory Maxwell <[email protected]>
date: Thu Aug 30 08:26:34 EDT 2012
Add an m4 macro set for pkgconfig less usage with autotools.
--- a/Makefile.am
+++ b/Makefile.am
@@ -85,6 +85,7 @@
EXTRA_DIST = version.mk \
opus.pc.in \
opus-uninstalled.pc.in \
+ opus.m4 \
tests/run_vectors.sh \
opus.sln \
celt/celt.vcxproj \
@@ -111,6 +112,8 @@
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = opus.pc
+m4datadir = $(datadir)/aclocal
+m4data_DATA = opus.m4
# Targets to build and install just the library without the docs
opus check-opus install-opus: export NO_DOXYGEN = 1
--- /dev/null
+++ b/opus.m4
@@ -1,0 +1,117 @@
+# Configure paths for libopus
+# Gregory Maxwell <[email protected]> 08-30-2012
+# Shamelessly stolen from Jack Moffitt (libogg) who
+# Shamelessly stole from Owen Taylor and Manish Singh
+
+dnl XIPH_PATH_OPUS([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+dnl Test for libopus, and define OPUS_CFLAGS and OPUS_LIBS
+dnl
+AC_DEFUN([XIPH_PATH_OPUS],
+[dnl
+dnl Get the cflags and libraries
+dnl
+AC_ARG_WITH(opus,AC_HELP_STRING([--with-opus=PFX],[Prefix where opus is installed (optional)]), opus_prefix="$withval", opus_prefix="")
+AC_ARG_WITH(opus-libraries,AC_HELP_STRING([--with-opus-libraries=DIR],[Directory where the opus library is installed (optional)]), opus_libraries="$withval", opus_libraries="")
+AC_ARG_WITH(opus-includes,AC_HELP_STRING([--with-opus-includes=DIR],[Directory where the opus header files are installed (optional)]), opus_includes="$withval", opus_includes="")
+AC_ARG_ENABLE(opustest,AC_HELP_STRING([--disable-opustest],[Do not try to compile and run a test opus program]),, enable_opustest=yes)
+
+ if test "x$opus_libraries" != "x" ; then
+ OPUS_LIBS="-L$opus_libraries"
+ elif test "x$opus_prefix" = "xno" || test "x$opus_prefix" = "xyes" ; then
+ OPUS_LIBS=""
+ elif test "x$opus_prefix" != "x" ; then
+ OPUS_LIBS="-L$opus_prefix/lib"
+ elif test "x$prefix" != "xNONE" ; then
+ OPUS_LIBS="-L$prefix/lib"
+ fi
+
+ if test "x$opus_prefix" != "xno" ; then
+ OPUS_LIBS="$OPUS_LIBS -lopus"
+ fi
+
+ if test "x$opus_includes" != "x" ; then
+ OPUS_CFLAGS="-I$opus_includes"
+ elif test "x$opus_prefix" = "xno" || test "x$opus_prefix" = "xyes" ; then
+ OPUS_CFLAGS=""
+ elif test "x$opus_prefix" != "x" ; then
+ OPUS_CFLAGS="-I$opus_prefix/include"
+ elif test "x$prefix" != "xNONE"; then
+ OPUS_CFLAGS="-I$prefix/include"
+ fi
+
+ AC_MSG_CHECKING(for Opus)
+ if test "x$opus_prefix" = "xno" ; then
+ no_opus="disabled"
+ enable_opustest="no"
+ else
+ no_opus=""
+ fi
+
+
+ if test "x$enable_opustest" = "xyes" ; then
+ ac_save_CFLAGS="$CFLAGS"
+ ac_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $OPUS_CFLAGS"
+ LIBS="$LIBS $OPUS_LIBS"
+dnl
+dnl Now check if the installed Opus is sufficiently new.
+dnl
+ rm -f conf.opustest
+ AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <opus.h>
+
+int main ()
+{+ system("touch conf.opustest");+ return 0;
+}
+
+],, no_opus=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+
+ if test "x$no_opus" = "xdisabled" ; then
+ AC_MSG_RESULT(no)
+ ifelse([$2], , :, [$2])
+ elif test "x$no_opus" = "x" ; then
+ AC_MSG_RESULT(yes)
+ ifelse([$1], , :, [$1])
+ else
+ AC_MSG_RESULT(no)
+ if test -f conf.opustest ; then
+ :
+ else
+ echo "*** Could not run Opus test program, checking why..."
+ CFLAGS="$CFLAGS $OPUS_CFLAGS"
+ LIBS="$LIBS $OPUS_LIBS"
+ AC_TRY_LINK([
+#include <stdio.h>
+#include <opus.h>
+], [ return 0; ],
+ [ echo "*** The test program compiled, but did not run. This usually means"
+ echo "*** that the run-time linker is not finding Opus or finding the wrong"
+ echo "*** version of Opus. If it is not finding Opus, you'll need to set your"
+ echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+ echo "*** to the installed location Also, make sure you have run ldconfig if that"
+ echo "*** is required on your system"
+ echo "***"
+ echo "*** If you have an old version installed, it is best to remove it, although"
+ echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
+ [ echo "*** The test program failed to compile or link. See the file config.log for the"
+ echo "*** exact error that occured. This usually means Opus was incorrectly installed"
+ echo "*** or that you have moved Opus since it was installed." ])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ OPUS_CFLAGS=""
+ OPUS_LIBS=""
+ ifelse([$2], , :, [$2])
+ fi
+ AC_SUBST(OPUS_CFLAGS)
+ AC_SUBST(OPUS_LIBS)
+ rm -f conf.opustest
+])