1 # Configure paths for libopus 2 # Gregory Maxwell <greg (a] xiph.org> 08-30-2012 3 # Shamelessly stolen from Jack Moffitt (libogg) who 4 # Shamelessly stole from Owen Taylor and Manish Singh 5 6 dnl XIPH_PATH_OPUS([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) 7 dnl Test for libopus, and define OPUS_CFLAGS and OPUS_LIBS 8 dnl 9 AC_DEFUN([XIPH_PATH_OPUS], 10 [dnl 11 dnl Get the cflags and libraries 12 dnl 13 AC_ARG_WITH(opus,AC_HELP_STRING([--with-opus=PFX],[Prefix where opus is installed (optional)]), opus_prefix="$withval", opus_prefix="") 14 AC_ARG_WITH(opus-libraries,AC_HELP_STRING([--with-opus-libraries=DIR],[Directory where the opus library is installed (optional)]), opus_libraries="$withval", opus_libraries="") 15 AC_ARG_WITH(opus-includes,AC_HELP_STRING([--with-opus-includes=DIR],[Directory where the opus header files are installed (optional)]), opus_includes="$withval", opus_includes="") 16 AC_ARG_ENABLE(opustest,AC_HELP_STRING([--disable-opustest],[Do not try to compile and run a test opus program]),, enable_opustest=yes) 17 18 if test "x$opus_libraries" != "x" ; then 19 OPUS_LIBS="-L$opus_libraries" 20 elif test "x$opus_prefix" = "xno" || test "x$opus_prefix" = "xyes" ; then 21 OPUS_LIBS="" 22 elif test "x$opus_prefix" != "x" ; then 23 OPUS_LIBS="-L$opus_prefix/lib" 24 elif test "x$prefix" != "xNONE" ; then 25 OPUS_LIBS="-L$prefix/lib" 26 fi 27 28 if test "x$opus_prefix" != "xno" ; then 29 OPUS_LIBS="$OPUS_LIBS -lopus" 30 fi 31 32 if test "x$opus_includes" != "x" ; then 33 OPUS_CFLAGS="-I$opus_includes" 34 elif test "x$opus_prefix" = "xno" || test "x$opus_prefix" = "xyes" ; then 35 OPUS_CFLAGS="" 36 elif test "x$opus_prefix" != "x" ; then 37 OPUS_CFLAGS="-I$opus_prefix/include" 38 elif test "x$prefix" != "xNONE"; then 39 OPUS_CFLAGS="-I$prefix/include" 40 fi 41 42 AC_MSG_CHECKING(for Opus) 43 if test "x$opus_prefix" = "xno" ; then 44 no_opus="disabled" 45 enable_opustest="no" 46 else 47 no_opus="" 48 fi 49 50 51 if test "x$enable_opustest" = "xyes" ; then 52 ac_save_CFLAGS="$CFLAGS" 53 ac_save_LIBS="$LIBS" 54 CFLAGS="$CFLAGS $OPUS_CFLAGS" 55 LIBS="$LIBS $OPUS_LIBS" 56 dnl 57 dnl Now check if the installed Opus is sufficiently new. 58 dnl 59 rm -f conf.opustest 60 AC_TRY_RUN([ 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <opus.h> 65 66 int main () 67 { 68 system("touch conf.opustest"); 69 return 0; 70 } 71 72 ],, no_opus=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) 73 CFLAGS="$ac_save_CFLAGS" 74 LIBS="$ac_save_LIBS" 75 fi 76 77 if test "x$no_opus" = "xdisabled" ; then 78 AC_MSG_RESULT(no) 79 ifelse([$2], , :, [$2]) 80 elif test "x$no_opus" = "x" ; then 81 AC_MSG_RESULT(yes) 82 ifelse([$1], , :, [$1]) 83 else 84 AC_MSG_RESULT(no) 85 if test -f conf.opustest ; then 86 : 87 else 88 echo "*** Could not run Opus test program, checking why..." 89 CFLAGS="$CFLAGS $OPUS_CFLAGS" 90 LIBS="$LIBS $OPUS_LIBS" 91 AC_TRY_LINK([ 92 #include <stdio.h> 93 #include <opus.h> 94 ], [ return 0; ], 95 [ echo "*** The test program compiled, but did not run. This usually means" 96 echo "*** that the run-time linker is not finding Opus or finding the wrong" 97 echo "*** version of Opus. If it is not finding Opus, you'll need to set your" 98 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" 99 echo "*** to the installed location Also, make sure you have run ldconfig if that" 100 echo "*** is required on your system" 101 echo "***" 102 echo "*** If you have an old version installed, it is best to remove it, although" 103 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], 104 [ echo "*** The test program failed to compile or link. See the file config.log for the" 105 echo "*** exact error that occurred. This usually means Opus was incorrectly installed" 106 echo "*** or that you have moved Opus since it was installed." ]) 107 CFLAGS="$ac_save_CFLAGS" 108 LIBS="$ac_save_LIBS" 109 fi 110 OPUS_CFLAGS="" 111 OPUS_LIBS="" 112 ifelse([$2], , :, [$2]) 113 fi 114 AC_SUBST(OPUS_CFLAGS) 115 AC_SUBST(OPUS_LIBS) 116 rm -f conf.opustest 117 ]) 118
