Disable win32 snprintf workaround

This is not needed with gcc 4.x.

m4/np-compat.m4

@@ -4,12 +4,6 @@ AC_DEFUN([AC_FLDIGI_NP_COMPAT], [
 
   AM_CONDITIONAL([COMPAT_REGEX], [test "x$ac_cv_header_regex_h" != "xyes"])
 
-  if test "x$target_mingw32" = "xyes"; then
-      AC_DEFINE([SNPRINTF_RETURNS_BOGUS], 1, [Defined if snprintf returns -1 when out of buffer space])
-  else
-      AC_DEFINE([SNPRINTF_RETURNS_BOGUS], 0, [Defined if snprintf returns -1 when out of buffer space])
-  fi
-
   if test "x$target_mingw32" = "xyes"; then
       sem_libs="pthreadGC2"
   else

src/compat/mingw.c

@@ -36,6 +36,7 @@ unsigned int _CRT_fmode = _O_BINARY;
 
 /******************************************************************************/
 
+#if SNPRINTF_RETURNS_BOGUS
 /*
  * The size parameter specifies the available space, i.e. includes
  * the trailing NUL byte; but Windows's vsnprintf expects the
@@ -88,6 +89,7 @@ int git_snprintf(char *str, size_t maxsize, const char *format, ...)
 
 	return ret;
 }
+#endif /* SNPRINTF_RETURNS_BOGUS */
 
 unsigned sleep(unsigned seconds)
 {

src/include/compat.h

@@ -37,6 +37,12 @@
 extern "C" {
 #endif
 
+#if defined(__WOE32__) && (!defined(__GNUC__) || __GNUC__ < 4)
+#  define SNPRINTF_RETURNS_BOGUS 1
+#else
+#  define SNPRINTF_RETURNS_BOGUS 0
+#endif
+
 #if SNPRINTF_RETURNS_BOGUS
 #define snprintf git_snprintf
 extern int git_snprintf(char *str, size_t maxsize,