Use config.h rather than passing all defs in CFLAGS

src/libFLAC/Makefile.am

@@ -20,7 +20,7 @@ lib_LTLIBRARIES = libFLAC.la
 if DEBUG
 DEBUGCFLAGS = -DFLAC__OVERFLOW_DETECT
 endif
-CFLAGS = @CFLAGS@ $(DEBUGCFLAGS)
+CFLAGS = @ CFLAGS@  $(DEBUGCFLAGS)
 
 if FLaC__NO_ASM
 else

src/libFLAC/format.c

@@ -23,6 +23,10 @@
 #include "FLAC/format.h"
 #include "private/format.h"
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #ifdef min
 #undef min
 #endif