[PATCH v2 0/1] MR7652: ntdll: Treat XDG_DATA_DIRS as special env variable.

[Louis Lenders (＠xe)]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49987

GTK apps seem to use this to find path to schemas, like
Meld: https://download.gnome.org/binaries/win32/meld/3.22/Meld-3.22.2-mingw.msi
which doesn't start at all without this patch.
More info in https://bugs.winehq.org/show_bug.cgi?id=49987.

--
  v2: ntdll: Treat XDG_DATA_DIRS as special env variable.

https://gitlab.winehq.org/wine/wine/-/merge_requests/7652

[PATCH v2 1/1] ntdll: Treat XDG_DATA_DIRS as special env variable.

[Louis Lenders]

From: Louis Lenders

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49987

GTK apps seem to use this to find path to schemas, like
Meld: https://download.gnome.org/binaries/win32/meld/3.22/Meld-3.22.0-mingw.msi
which doesn't start at all without this patch.
More info in https://bugs.winehq.org/show_bug.cgi?id=49987.
---
 dlls/ntdll/unix/env.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/ntdll/unix/env.c b/dlls/ntdll/unix/env.c
index 7193cceb87e..24a10ed4c42 100644
--- a/dlls/ntdll/unix/env.c
+++ b/dlls/ntdll/unix/env.c
@@ -346,6 +346,7 @@ static BOOL is_special_env_var( const char *var )
             STARTS_WITH( var, "TMP=" ) ||
             STARTS_WITH( var, "QT_" ) ||
             STARTS_WITH( var, "VK_" ) ||
+            STARTS_WITH( var, "XDG_DATA_DIRS=" ) ||
             STARTS_WITH( var, "XDG_SESSION_TYPE=" ));
 }

[Louis Lenders (＠xe)]

I changed the description with the version of Meld I had installed here, which was 3.22.0.

It seems Meld-3.22.2 also needs unsetting XDG_DATA_HOME; I'll open a new bugreport for that.

[PATCH v2 0/1] MR7652: Draft: ntdll: Treat XDG_DATA_DIRS as special env variable.

[Louis Lenders (＠xe)]

I opened https://bugs.winehq.org/show_bug.cgi?id=58023 for the XDG_DATA_HOME issue.

[PATCH v2 0/1] MR7652: Draft: ntdll: Treat XDG_DATA_DIRS as special env variable.

[Maotong Zhang (＠xiaotong)]

XDG_DATA_DIRS

linux : /usr/local/share:/usr/share:/usr/share/plasma:/var/lib/snapd/desktop: ...

windwos : %PROGRAMDATA%

Under normal circumstances, the XDG_DATA_DIRS variable exists in Linux, and Wine should not read the XDG_DATA_DIRS variable when running applications. The Windows variable  '%PROGRAMDATA%' should be read.

Filter out the XDG_DATA_DIRS variable.The libraries in the 'appname.exe' directory that will be loaded later. The program executed successfully.

Can add a 'appname.exe' directory to search for and load libraries to achieve this?