Added winmain entry for wlua target

Author: drahosp

CMakeLists.txt

@@ -147,7 +147,7 @@ target_link_libraries ( lua liblua )
 
 # On windows a variant of the lua interpreter without console output needs to be built
 if ( LUA_BUILD_WLUA )
-  add_executable ( wlua WIN32 ${SRC_LUA} ${LUA_RC} )
+  add_executable ( wlua WIN32 src/wmain.c ${SRC_LUA} ${LUA_RC} )
   target_link_libraries ( wlua liblua )
   install_executable ( wlua )
 endif ( )

src/wmain.c

@@ -0,0 +1,16 @@
+#include <windows.h>
+#include <stdlib.h> /* declaration of __argc and __argv */
+
+extern int main(int, char **);
+
+int PASCAL WinMain(HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int ncmdshow)
+{
+  int rc;
+  
+  extern int __argc;     /* this seems to work for all the compilers we tested, except Watcom compilers */
+  extern char** __argv;
+  
+  rc = main(__argc, __argv);
+  
+  return rc;
+}