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