From 904bd7ce42e2a8b7c440fcebc2a04c7b15232def Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Sat, 26 Sep 2009 09:16:01 +0000
Subject: [PATCH]  O.Sezer      2008-03-12 10:00:55 PDT

FLAC support, as implemented in SDL_mixer requires flac version >= 1.1.3 :
I have 1.1.2 installed and it surely fails compiling.  Can you add a check for

defined(FLAC_API_VERSION_CURRENT) && (FLAC_API_VERSION_CURRENT >= 8)

in the configure scripts (or document this requirement) please?
---
 configure.in | 76 ++++++++++++++++++++++++++++++++++------------------
 1 file changed, 50 insertions(+), 26 deletions(-)

diff --git a/configure.in b/configure.in
index 39db5e30..f559e011 100644
--- a/configure.in
+++ b/configure.in
@@ -318,6 +318,7 @@ if test x$enable_music_ogg = xyes; then
         fi
     fi
 fi
+libflac_ver=8
 AC_ARG_ENABLE([music-flac],
 AC_HELP_STRING([--enable-music-flac], [enable FLAC music [[default=yes]]]),
               [], [enable_music_flac=yes])
@@ -326,32 +327,55 @@ AC_HELP_STRING([--enable-music-flac-shared],
               [dynamically load FLAC support [[default=yes]]]),
               [], [enable_music_flac_shared=yes])
 if test x$enable_music_flac = xyes; then
-    AC_CHECK_HEADER([FLAC/stream_decoder.h], [have_flac_hdr=yes])
-    AC_CHECK_LIB([FLAC], [FLAC__stream_decoder_new], [have_flac_lib=yes])
-    if test x$have_flac_hdr = xyes -a x$have_flac_lib = xyes; then
-        case "$host" in
-            *-*-darwin*)
-                flac_lib=[`find_lib FLAC*.dylib`]
-                ;;
-            *-*-cygwin* | *-*-mingw32*)
-                flac_lib=[`find_lib "libFLAC*.dll"`]
-                ;;
-            *)
-                flac_lib=[`find_lib "libFLAC.so.[0-9]"`]
-                if test x$flac_lib = x; then
-                    flac_lib=[`find_lib "libFLAC.so.[0-9]*"`]
-                fi
-                ;;
-        esac
-        SOURCES="$SOURCES $srcdir/*_flac.c"
-        EXTRA_CFLAGS="$EXTRA_CFLAGS -DFLAC_MUSIC"
-        if test x$enable_music_flac_shared = xyes && test x$flac_lib != x; then
-            echo "-- dynamic libFLAC -> $flac_lib"
-            EXTRA_CFLAGS="$EXTRA_CFLAGS -DFLAC_DYNAMIC=\\\"$flac_lib\\\""
-        else
-            EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lFLAC"
-        fi
-    fi
+	AC_CHECK_HEADER([FLAC/export.h], [have_flac_export=yes])
+	if test x$have_flac_export = xyes; then
+		LIBS_SAVED="$LIBS"
+		LIBS="-lFLAC"
+	    AC_MSG_CHECKING([for libflac so-name version >= $libflac_ver])
+	    AC_TRY_RUN([
+#include "FLAC/export.h"
+#include "stdio.h"
+int main( int argc, char *argv[] ) {
+#if defined(FLAC_API_VERSION_CURRENT) && (FLAC_API_VERSION_CURRENT >= $libflac_ver)
+	return 0;
+#else
+	return 1;
+#endif
+}
+], have_flac_ver=yes, have_flac_ver=no)
+		LIBS="$LIBS_SAVED"
+		AC_MSG_RESULT($have_flac_ver)
+		if test x$have_flac_ver = xno; then
+			echo "*** FLAC support has been disabled."
+		else
+			AC_CHECK_HEADER([FLAC/stream_decoder.h], [have_flac_hdr=yes])
+			AC_CHECK_LIB([FLAC], [FLAC__stream_decoder_new], [have_flac_lib=yes])
+			if test x$have_flac_hdr = xyes -a x$have_flac_lib = xyes; then	
+			    case "$host" in
+			        *-*-darwin*)
+			            flac_lib=[`find_lib FLAC*.dylib`]
+			            ;;
+			        *-*-cygwin* | *-*-mingw32*)
+			            flac_lib=[`find_lib "libFLAC*.dll"`]
+			            ;;
+			        *)
+			            flac_lib=[`find_lib "libFLAC.so.[0-9]"`]
+			            if test x$flac_lib = x; then
+			                flac_lib=[`find_lib "libFLAC.so.[0-9]*"`]
+			            fi
+			            ;;
+			    esac
+			    SOURCES="$SOURCES $srcdir/*_flac.c"
+			    EXTRA_CFLAGS="$EXTRA_CFLAGS -DFLAC_MUSIC"
+			    if test x$enable_music_flac_shared = xyes && test x$flac_lib != x; then
+			        echo "-- dynamic libFLAC -> $flac_lib"
+			        EXTRA_CFLAGS="$EXTRA_CFLAGS -DFLAC_DYNAMIC=\\\"$flac_lib\\\""
+			    else
+			        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lFLAC"
+			    fi
+			fi
+		fi
+	fi
 fi
 AC_ARG_ENABLE(music-mp3,
 [  --enable-music-mp3      enable MP3 music via smpeg [[default=yes]]],