Alexandre Julliard : ntdll: Add a more explicit failure for 32-bit prefix in wow64 mode.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 443e49084ed2a85cba0b559eaf7921d503638911
URL:    https://gitlab.winehq.org/wine/wine/-/commit/443e49084ed2a85cba0b559eaf7921d...

Author: Alexandre Julliard <julliard(a)winehq.org>
Date:   Tue Dec 19 13:58:23 2023 +0100

ntdll: Add a more explicit failure for 32-bit prefix in wow64 mode.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56039

---

 dlls/ntdll/unix/server.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dlls/ntdll/unix/server.c b/dlls/ntdll/unix/server.c
index 7211457387c..53fcc61ccf3 100644
--- a/dlls/ntdll/unix/server.c
+++ b/dlls/ntdll/unix/server.c
@@ -1565,6 +1565,8 @@ size_t server_init_process(void)
     {
         const char *arch = getenv( "WINEARCH" );
 
+        if (is_win64 && arch && !strcmp( arch, "win32" ))
+            fatal_error( "WINEARCH is set to 'win32' but this is not supported in wow64 mode.\n" );
         if (arch && strcmp( arch, "win32" ) && strcmp( arch, "win64" ))
             fatal_error( "WINEARCH set to invalid value '%s', it must be either win32 or win64.\n", arch );