Add FORCEWARNINGS Makefile flag to prevent disabling compiler warnings within the source.

git-svn-id: https://svn.eduke32.com/eduke32@3237 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/eduke32/Makefile.common

@@ -112,6 +112,7 @@ endif
 #  RELEASE - 1 = no debugging
 #  DEBUGANYWAY - 1 = include debug symbols even when generating release code
 #  DISABLEINLINING - 1 = compile inline functions as extern instead of static inline
+#  FORCEWARNINGS - 1 = do not disable any compiler warnings within the source
 #  KRANDDEBUG - 1 = include logging of krand() calls for debugging the demo system
 #  EFENCE  - 1 = compile with Electric Fence for malloc() debugging
 #  OPTLEVEL	- 0..3 = GCC optimization strategy
@@ -122,6 +123,7 @@ RELEASE?=1
 DEBUGANYWAY?=0
 KRANDDEBUG?=0
 DISABLEINLINING?=0
+FORCEWARNINGS?=0
 EFENCE?=0
 DMALLOC?=0
 OPTLEVEL?=2
@@ -340,6 +342,9 @@ endif
 ifneq (0,$(DISABLEINLINING))
     BASECOMMONFLAGS+= -DDISABLE_INLINING
 endif
+ifneq (0,$(FORCEWARNINGS))
+    BASECOMMONFLAGS+= -DFORCE_WARNINGS
+endif
 
 BASELDFLAGS+= $(OPTOPT)
 

polymer/eduke32/build/include/compat.h

@@ -678,6 +678,7 @@ static inline char *Bstrncpyz(char *dst, const char *src, bsize_t n)
 } while (0)
 
 #ifdef __cplusplus
+#ifndef FORCE_WARNINGS
 #ifdef _MSC_VER
 // TODO: add MSVC pragmas to disable equivalent warning, if necessary later
 #else
@@ -697,6 +698,7 @@ static inline char *Bstrncpyz(char *dst, const char *src, bsize_t n)
     _Pragma("GCC diagnostic warning \"-Wformat\"") } while (0)
 #endif // _WIN32
 #endif // _MSC_VER
+#endif // FORCE_WARNINGS
 #endif // __cplusplus
 
 #define OSD_Printf_nowarn(fmt, ...) NOWARN(OSD_Printf, fmt, ## __VA_ARGS__)