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source: downloads/libvorbis-1.2.0/vorbis.m4 @ 29

Last change on this file since 29 was 16, checked in by landauf, 17 years ago

added libvorbis

File size: 4.3 KB
RevLine 
[16]1# Configure paths for libvorbis
2# Jack Moffitt <jack@icecast.org> 10-21-2000
3# Shamelessly stolen from Owen Taylor and Manish Singh
4# thomasvs added check for vorbis_bitrate_addblock which is new in rc3
5
6dnl XIPH_PATH_VORBIS([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
7dnl Test for libvorbis, and define VORBIS_CFLAGS and VORBIS_LIBS
8dnl
9AC_DEFUN([XIPH_PATH_VORBIS],
10[dnl
11dnl Get the cflags and libraries
12dnl
13AC_ARG_WITH(vorbis,[  --with-vorbis=PFX   Prefix where libvorbis is installed (optional)], vorbis_prefix="$withval", vorbis_prefix="")
14AC_ARG_WITH(vorbis-libraries,[  --with-vorbis-libraries=DIR   Directory where libvorbis library is installed (optional)], vorbis_libraries="$withval", vorbis_libraries="")
15AC_ARG_WITH(vorbis-includes,[  --with-vorbis-includes=DIR   Directory where libvorbis header files are installed (optional)], vorbis_includes="$withval", vorbis_includes="")
16AC_ARG_ENABLE(vorbistest, [  --disable-vorbistest       Do not try to compile and run a test Vorbis program],, enable_vorbistest=yes)
17
18  if test "x$vorbis_libraries" != "x" ; then
19    VORBIS_LIBS="-L$vorbis_libraries"
20  elif test "x$vorbis_prefix" != "x" ; then
21    VORBIS_LIBS="-L$vorbis_prefix/lib"
22  elif test "x$prefix" != "xNONE"; then
23    VORBIS_LIBS="-L$prefix/lib"
24  fi
25
26  VORBIS_LIBS="$VORBIS_LIBS -lvorbis -lm"
27  VORBISFILE_LIBS="-lvorbisfile"
28  VORBISENC_LIBS="-lvorbisenc"
29
30  if test "x$vorbis_includes" != "x" ; then
31    VORBIS_CFLAGS="-I$vorbis_includes"
32  elif test "x$vorbis_prefix" != "x" ; then
33    VORBIS_CFLAGS="-I$vorbis_prefix/include"
34  elif test "x$prefix" != "xNONE"; then
35    VORBIS_CFLAGS="-I$prefix/include"
36  fi
37
38
39  AC_MSG_CHECKING(for Vorbis)
40  no_vorbis=""
41
42
43  if test "x$enable_vorbistest" = "xyes" ; then
44    ac_save_CFLAGS="$CFLAGS"
45    ac_save_LIBS="$LIBS"
46    CFLAGS="$CFLAGS $VORBIS_CFLAGS $OGG_CFLAGS"
47    LIBS="$LIBS $VORBIS_LIBS $VORBISENC_LIBS $OGG_LIBS"
48dnl
49dnl Now check if the installed Vorbis is sufficiently new.
50dnl
51      rm -f conf.vorbistest
52      AC_TRY_RUN([
53#include <stdio.h>
54#include <stdlib.h>
55#include <string.h>
56#include <vorbis/codec.h>
57#include <vorbis/vorbisenc.h>
58
59int main ()
60{
61    vorbis_block        vb;
62    vorbis_dsp_state    vd;
63    vorbis_info         vi;
64
65    vorbis_info_init (&vi);
66    vorbis_encode_init (&vi, 2, 44100, -1, 128000, -1);
67    vorbis_analysis_init (&vd, &vi);
68    vorbis_block_init (&vd, &vb);
69    /* this function was added in 1.0rc3, so this is what we're testing for */
70    vorbis_bitrate_addblock (&vb);
71
72    system("touch conf.vorbistest");
73    return 0;
74}
75
76],, no_vorbis=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
77       CFLAGS="$ac_save_CFLAGS"
78       LIBS="$ac_save_LIBS"
79  fi
80
81  if test "x$no_vorbis" = "x" ; then
82     AC_MSG_RESULT(yes)
83     ifelse([$1], , :, [$1])     
84  else
85     AC_MSG_RESULT(no)
86     if test -f conf.vorbistest ; then
87       :
88     else
89       echo "*** Could not run Vorbis test program, checking why..."
90       CFLAGS="$CFLAGS $VORBIS_CFLAGS"
91       LIBS="$LIBS $VORBIS_LIBS $OGG_LIBS"
92       AC_TRY_LINK([
93#include <stdio.h>
94#include <vorbis/codec.h>
95],     [ return 0; ],
96       [ echo "*** The test program compiled, but did not run. This usually means"
97       echo "*** that the run-time linker is not finding Vorbis or finding the wrong"
98       echo "*** version of Vorbis. If it is not finding Vorbis, you'll need to set your"
99       echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
100       echo "*** to the installed location  Also, make sure you have run ldconfig if that"
101       echo "*** is required on your system"
102       echo "***"
103       echo "*** If you have an old version installed, it is best to remove it, although"
104       echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
105       [ echo "*** The test program failed to compile or link. See the file config.log for the"
106       echo "*** exact error that occured. This usually means Vorbis was incorrectly installed"
107       echo "*** or that you have moved Vorbis since it was installed." ])
108       CFLAGS="$ac_save_CFLAGS"
109       LIBS="$ac_save_LIBS"
110     fi
111     VORBIS_CFLAGS=""
112     VORBIS_LIBS=""
113     VORBISFILE_LIBS=""
114     VORBISENC_LIBS=""
115     ifelse([$2], , :, [$2])
116  fi
117  AC_SUBST(VORBIS_CFLAGS)
118  AC_SUBST(VORBIS_LIBS)
119  AC_SUBST(VORBISFILE_LIBS)
120  AC_SUBST(VORBISENC_LIBS)
121  rm -f conf.vorbistest
122])
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