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			118 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			118 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| # Configure paths for libopus
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| # Gregory Maxwell <greg@xiph.org> 08-30-2012
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| # Shamelessly stolen from Jack Moffitt (libogg) who
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| # Shamelessly stole from Owen Taylor and Manish Singh
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| 
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| dnl XIPH_PATH_OPUS([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
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| dnl Test for libopus, and define OPUS_CFLAGS and OPUS_LIBS
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| dnl
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| AC_DEFUN([XIPH_PATH_OPUS],
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| [dnl
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| dnl Get the cflags and libraries
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| dnl
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| AC_ARG_WITH(opus,AC_HELP_STRING([--with-opus=PFX],[Prefix where opus is installed (optional)]), opus_prefix="$withval", opus_prefix="")
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| AC_ARG_WITH(opus-libraries,AC_HELP_STRING([--with-opus-libraries=DIR],[Directory where the opus library is installed (optional)]), opus_libraries="$withval", opus_libraries="")
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| AC_ARG_WITH(opus-includes,AC_HELP_STRING([--with-opus-includes=DIR],[Directory where the opus header files are installed (optional)]), opus_includes="$withval", opus_includes="")
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| AC_ARG_ENABLE(opustest,AC_HELP_STRING([--disable-opustest],[Do not try to compile and run a test opus program]),, enable_opustest=yes)
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| 
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|   if test "x$opus_libraries" != "x" ; then
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|     OPUS_LIBS="-L$opus_libraries"
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|   elif test "x$opus_prefix" = "xno" || test "x$opus_prefix" = "xyes" ; then
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|     OPUS_LIBS=""
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|   elif test "x$opus_prefix" != "x" ; then
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|     OPUS_LIBS="-L$opus_prefix/lib"
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|   elif test "x$prefix" != "xNONE" ; then
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|     OPUS_LIBS="-L$prefix/lib"
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|   fi
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| 
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|   if test "x$opus_prefix" != "xno" ; then
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|     OPUS_LIBS="$OPUS_LIBS -lopus"
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|   fi
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| 
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|   if test "x$opus_includes" != "x" ; then
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|     OPUS_CFLAGS="-I$opus_includes"
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|   elif test "x$opus_prefix" = "xno" || test "x$opus_prefix" = "xyes" ; then
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|     OPUS_CFLAGS=""
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|   elif test "x$opus_prefix" != "x" ; then
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|     OPUS_CFLAGS="-I$opus_prefix/include"
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|   elif test "x$prefix" != "xNONE"; then
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|     OPUS_CFLAGS="-I$prefix/include"
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|   fi
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| 
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|   AC_MSG_CHECKING(for Opus)
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|   if test "x$opus_prefix" = "xno" ; then
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|     no_opus="disabled"
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|     enable_opustest="no"
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|   else
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|     no_opus=""
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|   fi
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| 
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| 
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|   if test "x$enable_opustest" = "xyes" ; then
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|     ac_save_CFLAGS="$CFLAGS"
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|     ac_save_LIBS="$LIBS"
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|     CFLAGS="$CFLAGS $OPUS_CFLAGS"
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|     LIBS="$LIBS $OPUS_LIBS"
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| dnl
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| dnl Now check if the installed Opus is sufficiently new.
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| dnl
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|       rm -f conf.opustest
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|       AC_TRY_RUN([
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| #include <stdio.h>
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| #include <stdlib.h>
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| #include <string.h>
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| #include <opus.h>
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| 
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| int main (void)
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| {
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|   system("touch conf.opustest");
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|   return 0;
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| }
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| 
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| ],, no_opus=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
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|        CFLAGS="$ac_save_CFLAGS"
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|        LIBS="$ac_save_LIBS"
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|   fi
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| 
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|   if test "x$no_opus" = "xdisabled" ; then
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|      AC_MSG_RESULT(no)
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|      ifelse([$2], , :, [$2])
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|   elif test "x$no_opus" = "x" ; then
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|      AC_MSG_RESULT(yes)
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|      ifelse([$1], , :, [$1])
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|   else
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|      AC_MSG_RESULT(no)
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|      if test -f conf.opustest ; then
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|        :
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|      else
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|        echo "*** Could not run Opus test program, checking why..."
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|        CFLAGS="$CFLAGS $OPUS_CFLAGS"
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|        LIBS="$LIBS $OPUS_LIBS"
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|        AC_TRY_LINK([
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| #include <stdio.h>
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| #include <opus.h>
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| ],     [ return 0; ],
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|        [ echo "*** The test program compiled, but did not run. This usually means"
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|        echo "*** that the run-time linker is not finding Opus or finding the wrong"
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|        echo "*** version of Opus. If it is not finding Opus, you'll need to set your"
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|        echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
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|        echo "*** to the installed location  Also, make sure you have run ldconfig if that"
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|        echo "*** is required on your system"
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|        echo "***"
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|        echo "*** If you have an old version installed, it is best to remove it, although"
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|        echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
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|        [ echo "*** The test program failed to compile or link. See the file config.log for the"
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|        echo "*** exact error that occurred. This usually means Opus was incorrectly installed"
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|        echo "*** or that you have moved Opus since it was installed." ])
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|        CFLAGS="$ac_save_CFLAGS"
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|        LIBS="$ac_save_LIBS"
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|      fi
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|      OPUS_CFLAGS=""
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|      OPUS_LIBS=""
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|      ifelse([$2], , :, [$2])
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|   fi
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|   AC_SUBST(OPUS_CFLAGS)
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|   AC_SUBST(OPUS_LIBS)
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|   rm -f conf.opustest
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| ])
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