Make all winecrt0 functions and variables hidden.

dlls/winecrt0/crt0_private.h

@@ -25,8 +25,8 @@
 static inline void _init(int argc, char **argv, char **envp ) { /* nothing */ }
 static inline void _fini(void) { /* nothing */ }
 #else
-extern  void _init(int argc, char **argv, char **envp );
-extern void _fini(void);
+extern void _init(int argc, char **argv, char **envp ) DECLSPEC_HIDDEN;
+extern void _fini(void) DECLSPEC_HIDDEN;
 #endif
 
 enum init_state
@@ -36,6 +36,6 @@ enum init_state
     CONSTRUCTORS_DONE  /* the constructors have been run (implies dll registered too) */
 };
 
-extern enum init_state __wine_spec_init_state;
+extern enum init_state __wine_spec_init_state DECLSPEC_HIDDEN;
 
 #endif /* __WINE_CRT0_PRIVATE_H__ */

dlls/winecrt0/delay_load.c

@@ -38,7 +38,7 @@ extern struct ImgDelayDescr __wine_spec_delay_imports[];
 
 extern FARPROC WINAPI DelayLoadFailureHook( LPCSTR name, LPCSTR function );
 
-FARPROC WINAPI __wine_spec_delay_load( unsigned int id )
+FARPROC WINAPI DECLSPEC_HIDDEN __wine_spec_delay_load( unsigned int id )
 {
     struct ImgDelayDescr *descr = __wine_spec_delay_imports + HIWORD(id);
     WORD func = LOWORD(id);

dlls/winecrt0/dll_entry.c

@@ -24,9 +24,9 @@
 #include "wine/library.h"
 #include "crt0_private.h"
 
-extern BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved );
+extern BOOL WINAPI DECLSPEC_HIDDEN DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved );
 
-BOOL WINAPI __wine_spec_dll_entry( HINSTANCE inst, DWORD reason, LPVOID reserved )
+BOOL WINAPI DECLSPEC_HIDDEN __wine_spec_dll_entry( HINSTANCE inst, DWORD reason, LPVOID reserved )
 {
     static BOOL call_fini;
     BOOL ret;

dlls/winecrt0/dll_main.c

@@ -22,7 +22,7 @@
 #include "windef.h"
 #include "winbase.h"
 
-BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
+BOOL WINAPI DECLSPEC_HIDDEN DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
 {
     if (reason == DLL_PROCESS_ATTACH) DisableThreadLibraryCalls( inst );
     return TRUE;

dlls/winecrt0/drv_entry.c

@@ -27,7 +27,7 @@
 struct _DRIVER_OBJECT;
 extern NTSTATUS DriverEntry( struct _DRIVER_OBJECT *obj, UNICODE_STRING *path );
 
-NTSTATUS __wine_spec_drv_entry( struct _DRIVER_OBJECT *obj, UNICODE_STRING *path )
+NTSTATUS DECLSPEC_HIDDEN __wine_spec_drv_entry( struct _DRIVER_OBJECT *obj, UNICODE_STRING *path )
 {
     BOOL needs_init = (__wine_spec_init_state != CONSTRUCTORS_DONE);
 

dlls/winecrt0/exe_entry.c

@@ -27,7 +27,7 @@
 
 extern int main( int argc, char *argv[] );
 
-DWORD WINAPI __wine_spec_exe_entry( PEB *peb )
+DWORD WINAPI DECLSPEC_HIDDEN __wine_spec_exe_entry( PEB *peb )
 {
     BOOL needs_init = (__wine_spec_init_state != CONSTRUCTORS_DONE);
     DWORD ret;

dlls/winecrt0/exe_wentry.c

@@ -27,7 +27,7 @@
 
 extern int wmain( int argc, WCHAR *argv[] );
 
-DWORD WINAPI __wine_spec_exe_wentry( PEB *peb )
+DWORD WINAPI DECLSPEC_HIDDEN __wine_spec_exe_wentry( PEB *peb )
 {
     BOOL needs_init = (__wine_spec_init_state != CONSTRUCTORS_DONE);
     DWORD ret;

dlls/winecrt0/init.c

@@ -29,13 +29,13 @@ enum init_state __wine_spec_init_state = NO_INIT_DONE;
 extern const IMAGE_NT_HEADERS __wine_spec_nt_header;
 extern const char __wine_spec_file_name[];
 
-void __wine_spec_init(void)
+void DECLSPEC_HIDDEN __wine_spec_init(void)
 {
     __wine_spec_init_state = DLL_REGISTERED;
     __wine_dll_register( &__wine_spec_nt_header, __wine_spec_file_name );
 }
 
-void __wine_spec_init_ctor(void)
+void DECLSPEC_HIDDEN __wine_spec_init_ctor(void)
 {
     if (__wine_spec_init_state == NO_INIT_DONE) __wine_spec_init();
     __wine_spec_init_state = CONSTRUCTORS_DONE;

dlls/winecrt0/stub.c

@@ -23,7 +23,7 @@
 #include "winbase.h"
 #include "wine/exception.h"
 
-void __wine_spec_unimplemented_stub( const char *module, const char *function )
+void DECLSPEC_HIDDEN __wine_spec_unimplemented_stub( const char *module, const char *function )
 {
     ULONG_PTR args[2];
 

include/winnt.h

@@ -130,6 +130,24 @@
 # endif
 #endif
 
+/* a couple of useful Wine extensions */
+
+#ifdef _MSC_VER
+# define DECLSPEC_EXPORT __declspec(dllexport)
+#elif defined(__MINGW32__)
+# define DECLSPEC_EXPORT __attribute__((dllexport))
+#elif defined(__GNUC__) && (__GNUC__ > 2)
+# define DECLSPEC_EXPORT __attribute__((visibility ("default")))
+#else
+# define DECLSPEC_EXPORT
+#endif
+
+#if defined(__GNUC__) && (__GNUC__ > 2)
+# define DECLSPEC_HIDDEN __attribute__((visibility ("hidden")))
+#else
+# define DECLSPEC_HIDDEN
+#endif
+
 /* Anonymous union/struct handling */
 
 #ifndef NONAMELESSSTRUCT