load stdio.h with _GNU_SOURCE defined ASAP before some random other system header...

[simgrid.git] / src / portable.h

diff --git a/src/portable.h b/src/portable.h
index 03bbd85..a4d4f34 100644 (file)
--- a/src/portable.h
+++ b/src/portable.h
@@ -16,11 +16,17 @@
 */ 
 #ifdef _WIN32
 # include "win32/config.h"
-#  include <windows.h>
+# include <windows.h>
 #else
 #  include "gras_config.h"
 #endif
 
+/* Load this asap to make sure that GNU_SOURCE is defined on need when stdio gets loaded by some random system header */
+#ifdef HAVE_GETLINE
+#  define _GNU_SOURCE
+#  include <stdio.h>
+#endif
+
 #include <stdarg.h>
 
 #ifdef HAVE_ERRNO_H
@@ -88,19 +94,6 @@
 # endif
 #endif
 
-
-/****
- **** Contexts
- ****/
-
-#ifdef USE_UCONTEXT
-# include <ucontext.h>
-#endif
-
-#ifdef _WIN32
-#  include "xbt/context_win32.h" /* Manual reimplementation for prehistoric platforms */
-#endif
-
 /****
  **** Signals
  ****/
@@ -116,10 +109,19 @@
 #ifdef HAVE_SNPRINTF
 #include <stdio.h>
 #else
+#  if (defined(_MSC_VER) && defined(DLL_EXPORT))
+    __declspec(dllexport) int snprintf(char *, size_t, const char *, /*args*/ ...);
+    __declspec(dllexport)  int vsnprintf(char *, size_t, const char *, va_list);
+#  elif (defined(_MSC_VER) && !defined(DLL_EXPORT) && !defined(DLL_STATIC) )
+    __declspec(dllimport) int snprintf(char *, size_t, const char *, /*args*/ ...);
+    __declspec(dllimport)  int vsnprintf(char *, size_t, const char *, va_list);
+#else
 extern int snprintf(char *, size_t, const char *, /*args*/ ...);
 extern int vsnprintf(char *, size_t, const char *, va_list);
 #endif
 
+#endif
+
 /* use internal functions when OS provided ones are borken */
 #if defined(HAVE_SNPRINTF) && defined(PREFER_PORTABLE_SNPRINTF)
 extern int portable_snprintf(char *str, size_t str_m, const char *fmt, /*args*/ ...);