libwine: Export __wine_get_main_environment on Mac OS to make sure it's reevaluated when used.

dlls/kernel32/process.c

@@ -56,6 +56,13 @@ WINE_DEFAULT_DEBUG_CHANNEL(process);
 WINE_DECLARE_DEBUG_CHANNEL(file);
 WINE_DECLARE_DEBUG_CHANNEL(relay);
 
+#ifdef __APPLE__
+extern char **__wine_get_main_environment(void);
+#define environ __wine_get_main_environment()
+#else
+extern char **environ;
+#endif
+
 typedef struct
 {
     LPSTR lpEnvAddress;
@@ -267,7 +274,7 @@ static BOOL find_exe_file( const WCHAR *name, WCHAR *buffer, int buflen, HANDLE
  *
  * Build the Win32 environment from the Unix environment
  */
-static BOOL build_initial_environment( char **environ )
+static BOOL build_initial_environment(void)
 {
     SIZE_T size = 1;
     char **e;
@@ -989,7 +996,7 @@ void CDECL __wine_kernel_init(void)
     if (!params->Environment)
     {
         /* Copy the parent environment */
-        if (!build_initial_environment( __wine_main_environ )) exit(1);
+        if (!build_initial_environment()) exit(1);
 
         /* convert old configuration to new format */
         convert_old_config();

include/wine/library.h

@@ -65,7 +65,6 @@ extern int wine_dll_get_owner( const char *name, char *buffer, int size, int *fi
 extern int __wine_main_argc;
 extern char **__wine_main_argv;
 extern WCHAR **__wine_main_wargv;
-extern char **__wine_main_environ;
 extern void __wine_dll_register( const IMAGE_NT_HEADERS *header, const char *filename );
 extern void wine_init( int argc, char *argv[], char *error, int error_size );
 

libs/wine/loader.c

@@ -441,6 +441,18 @@ static void *map_dll( const IMAGE_NT_HEADERS *nt_descr )
 
 
 /***********************************************************************
+ *           __wine_get_main_environment
+ *
+ * Return an environment pointer to work around lack of environ variable.
+ * Only exported on Mac OS.
+ */
+char **__wine_get_main_environment(void)
+{
+    return environ;
+}
+
+
+/***********************************************************************
  *           __wine_dll_register
  *
  * Register a built-in DLL descriptor.
@@ -638,7 +650,7 @@ void wine_init( int argc, char *argv[], char *error, int error_size )
     build_dll_path();
     __wine_main_argc = argc;
     __wine_main_argv = argv;
-    __wine_main_environ = environ;
+    __wine_main_environ = __wine_get_main_environment();
     mmap_init();
 
     for (path = first_dll_path( "ntdll.dll", 0, &context ); path; path = next_dll_path( &context ))