1# Configure paths for libFLAC++
2# "Inspired" by ogg.m4
3# Caller must first run AM_PATH_LIBFLAC
4
5dnl AM_PATH_LIBFLACPP([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
6dnl Test for libFLAC++, and define LIBFLACPP_CFLAGS, LIBFLACPP_LIBS, LIBFLACPP_LIBDIR
7dnl
8AC_DEFUN([AM_PATH_LIBFLACPP],
9[dnl
10dnl Get the cflags and libraries
11dnl
12AC_ARG_WITH(libFLACPP,[  --with-libFLACPP=PFX   Prefix where libFLAC++ is installed (optional)], libFLACPP_prefix="$withval", libFLACPP_prefix="")
13AC_ARG_WITH(libFLACPP-libraries,[  --with-libFLACPP-libraries=DIR   Directory where libFLAC++ library is installed (optional)], libFLACPP_libraries="$withval", libFLACPP_libraries="")
14AC_ARG_WITH(libFLACPP-includes,[  --with-libFLACPP-includes=DIR   Directory where libFLAC++ header files are installed (optional)], libFLACPP_includes="$withval", libFLACPP_includes="")
15AC_ARG_ENABLE(libFLACPPtest, [  --disable-libFLACPPtest       Do not try to compile and run a test libFLAC++ program],, enable_libFLACPPtest=yes)
16
17  if test "x$libFLACPP_libraries" != "x" ; then
18    LIBFLACPP_LIBDIR="$libFLACPP_libraries"
19  elif test "x$libFLACPP_prefix" != "x" ; then
20    LIBFLACPP_LIBDIR="$libFLACPP_prefix/lib"
21  elif test "x$prefix" != "xNONE" ; then
22    LIBFLACPP_LIBDIR="$libdir"
23  fi
24
25  LIBFLACPP_LIBS="-L$LIBFLACPP_LIBDIR -lFLAC++ $LIBFLAC_LIBS"
26
27  if test "x$libFLACPP_includes" != "x" ; then
28    LIBFLACPP_CFLAGS="-I$libFLACPP_includes"
29  elif test "x$libFLACPP_prefix" != "x" ; then
30    LIBFLACPP_CFLAGS="-I$libFLACPP_prefix/include"
31  elif test "$prefix" != "xNONE"; then
32    LIBFLACPP_CFLAGS=""
33  fi
34
35  LIBFLACPP_CFLAGS="$LIBFLACPP_CFLAGS $LIBFLAC_CFLAGS"
36
37  AC_MSG_CHECKING(for libFLAC++)
38  no_libFLACPP=""
39
40
41  if test "x$enable_libFLACPPtest" = "xyes" ; then
42    ac_save_CFLAGS="$CFLAGS"
43    ac_save_CXXFLAGS="$CXXFLAGS"
44    ac_save_LIBS="$LIBS"
45    ac_save_LD_LIBRARY_PATH="$LD_LIBRARY_PATH"
46    CFLAGS="$CFLAGS $LIBFLACPP_CFLAGS"
47    CXXFLAGS="$CXXFLAGS $LIBFLACPP_CFLAGS"
48    LIBS="$LIBS $LIBFLACPP_LIBS"
49    LD_LIBRARY_PATH="$LIBFLACPP_LIBDIR:$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
50dnl
51dnl Now check if the installed libFLAC++ is sufficiently new.
52dnl
53      rm -f conf.libFLAC++test
54      AC_TRY_RUN([
55#include <stdio.h>
56#include <stdlib.h>
57#include <string.h>
58#include <FLAC++/decoder.h>
59
60int main ()
61{
62  system("touch conf.libFLAC++test");
63  return 0;
64}
65
66],, no_libFLACPP=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
67       CFLAGS="$ac_save_CFLAGS"
68       CXXFLAGS="$ac_save_CXXFLAGS"
69       LIBS="$ac_save_LIBS"
70       LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
71  fi
72
73  if test "x$no_libFLACPP" = "x" ; then
74     AC_MSG_RESULT(yes)
75     ifelse([$1], , :, [$1])
76  else
77     AC_MSG_RESULT(no)
78     if test -f conf.libFLAC++test ; then
79       :
80     else
81       echo "*** Could not run libFLAC++ test program, checking why..."
82       CFLAGS="$CFLAGS $LIBFLACPP_CFLAGS"
83       CXXFLAGS="$CXXFLAGS $LIBFLACPP_CFLAGS"
84       LIBS="$LIBS $LIBFLACPP_LIBS"
85       LD_LIBRARY_PATH="$LIBFLACPP_LIBDIR:$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
86       AC_TRY_LINK([
87#include <stdio.h>
88#include <FLAC++/decoder.h>
89],     [ return 0; ],
90       [ echo "*** The test program compiled, but did not run. This usually means"
91       echo "*** that the run-time linker is not finding libFLAC++ or finding the wrong"
92       echo "*** version of libFLAC++. If it is not finding libFLAC++, you'll need to set your"
93       echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
94       echo "*** to the installed location  Also, make sure you have run ldconfig if that"
95       echo "*** is required on your system"
96       echo "***"
97       echo "*** If you have an old version installed, it is best to remove it, although"
98       echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
99       [ echo "*** The test program failed to compile or link. See the file config.log for the"
100       echo "*** exact error that occurred. This usually means libFLAC++ was incorrectly installed"
101       echo "*** or that you have moved libFLAC++ since it was installed. In the latter case, you"
102       echo "*** may want to edit the libFLAC++-config script: $LIBFLACPP_CONFIG" ])
103       CFLAGS="$ac_save_CFLAGS"
104       CXXFLAGS="$ac_save_CXXFLAGS"
105       LIBS="$ac_save_LIBS"
106       LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
107     fi
108     LIBFLACPP_CFLAGS=""
109     LIBFLACPP_LIBDIR=""
110     LIBFLACPP_LIBS=""
111     ifelse([$2], , :, [$2])
112  fi
113  AC_SUBST(LIBFLACPP_CFLAGS)
114  AC_SUBST(LIBFLACPP_LIBDIR)
115  AC_SUBST(LIBFLACPP_LIBS)
116  rm -f conf.libFLAC++test
117])
118