X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ccd96bfe8e90099e6e6e76464aa969c4ad61c1f0..7e721c7a4bb6b253d64ae580e73853ed76d0ad03:/include/wx/wxcrtvararg.h

diff --git a/include/wx/wxcrtvararg.h b/include/wx/wxcrtvararg.h
index 2e52bb23df..77ffc5f0d7 100644
--- a/include/wx/wxcrtvararg.h
+++ b/include/wx/wxcrtvararg.h
@@ -31,9 +31,12 @@
 /* printf() family saga */
 
 /*
-   For some systems [v]snprintf() exists in the system libraries but not in the
-   headers, so we need to declare it ourselves to be able to use it.
+   For many old Unix systems [v]snprintf()/vsscanf() exists in the system
+   libraries but not in the headers, so we need to declare it ourselves to be
+   able to use it.
  */
+#ifdef __UNIX__
+
 #if defined(HAVE_VSNPRINTF) && !defined(HAVE_VSNPRINTF_DECL)
 #ifdef __cplusplus
     extern "C"
@@ -52,6 +55,15 @@
     int snprintf(char *str, size_t size, const char *format, ...);
 #endif /* !HAVE_SNPRINTF_DECL */
 
+#if defined(HAVE_VSSCANF) && !defined(HAVE_VSSCANF_DECL)
+#ifdef __cplusplus
+    extern "C"
+#else
+    extern
+#endif
+    int vsscanf(const char *str, const char *format, va_list ap);
+#endif /* !HAVE_VSSCANF_DECL */
+
 /* Wrapper for vsnprintf if it's 3rd parameter is non-const. Note: the
  * same isn't done for snprintf below, the builtin wxSnprintf_ is used
  * instead since it's already a simple wrapper */
@@ -62,6 +74,8 @@
     }
 #endif
 
+#endif /* __UNIX__ */
+
 /*
    mingw32 normally uses MSVCRT which has non-standard vswprintf() and so
    normally _vsnwprintf() is used instead, the only exception is when mingw32