* Check wether we're compiling as C99

* if not #error about requiring a C99-compliant snprintf & vsnprintf implementation

NOTE: This doesn't affect MSVC as I've already provided a C99-compliant implementation for it


git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@3449 4a71c877-e1ca-e34f-864e-861f7616d084

lib/framework/printf_ext.h

@@ -54,6 +54,8 @@ extern int wz_snprintf(char* str, size_t size, const char* format, ...);
 // Necessary to prevent conflicting symbols with MSVC's own (incorrect!) implementations of these functions
 # define vsnprintf wz_vsnprintf
 # define snprintf  wz_snprintf
+#elif !defined(WZ_C99)
+# error "This code depends on a C99-compliant implementation of snprintf and vsnprintf; please compile as C99 or provide a compliant implementation!"
 #endif
 
 // A stack-allocating variant of sprintf