_ISOC99_SOURCE is a libc macro, we now use WZ_C99 instead (which gets defined via __STDC_VERSION__)

git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@1749 4a71c877-e1ca-e34f-864e-861f7616d084

lib/framework/types.h

@@ -72,7 +72,7 @@ typedef struct
 #endif /* !WZ_OS_WIN */
 
 // If we are C99 compatible, the "bool" macro will be defined in <stdbool.h> (as _Bool)
-#if defined(_ISOC99_SOURCE)
+#if defined(WZ_C99)
 # include <stdbool.h>
 #else
 // Pretend we are C99 compatible (well, for the bool type then)
@@ -88,7 +88,7 @@ typedef struct
 # ifndef __bool_true_false_are_defined
 #  define __bool_true_false_are_defined (1)
 # endif
-#endif
+#endif /* WZ_C99 */
 
 /* Numeric size defines */
 #define UBYTE_MAX	0xff

lib/framework/wzglobal.h

@@ -122,6 +122,17 @@
 #endif /* WZ_CC_x */
 
 
+/*
+   The supported C standard, must be one of: (WZ_Cxx)
+
+     99       - ISO/IEC 9899:1999 / C99
+
+*/
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+# define WZ_C99
+#endif /* WZ_Cxx */
+
+
 /**
  * \def WZ_DECL_DEPRECATED
  *

lib/sound/oggvorbis.c

@@ -213,9 +213,9 @@ soundDataBuffer* sound_DecodeOggVorbis(struct OggVorbisDecoderState* decoder, si
 		return NULL;
 	}
 
-#if !defined(_ISOC99_SOURCE)
+#if !defined(WZ_C99)
 	buffer->data = (char*)(buffer + 1);
-#endif
+#endif /* WZ_C99 */
 	buffer->bufferSize = bufferSize;
 	buffer->bitsPerSample = 16;
 	buffer->channelCount = decoder->VorbisInfo->channels;

lib/sound/oggvorbis.h

@@ -37,11 +37,11 @@ typedef struct
 	unsigned int frequency;
 
 	// the raw PCM data
-#if defined(_ISOC99_SOURCE)
+#if defined(WZ_C99)
 	char data[];
 #else
 	char* data;
-#endif
+#endif /* WZ_C99 */
 } soundDataBuffer;
 
 // Forward declaration so we can take pointers to this type