Alex Henrie : include: Allow multiple definitions on GCC with DECLSPEC_SELECTANY.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 44e1e9438c867b6adfecaad6e87967f6fe26c7e1
URL:    https://gitlab.winehq.org/wine/wine/-/commit/44e1e9438c867b6adfecaad6e87967f...

Author: Alex Henrie 
Date:   Wed Feb  8 22:04:59 2023 -0700

include: Allow multiple definitions on GCC with DECLSPEC_SELECTANY.

Needed to compile Tera Term.

As far as I can tell, GCC has always supported __attribute__((weak)).

---

include/winnt.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/winnt.h b/include/winnt.h
index 66f6b7ad809..e15ac364ef2 100644
--- a/include/winnt.h
+++ b/include/winnt.h
@@ -118,6 +118,8 @@ extern "C" {
 #define DECLSPEC_SELECTANY __declspec(selectany)
 #elif defined(__MINGW32__)
 #define DECLSPEC_SELECTANY __attribute__((selectany))
+#elif defined(__GNUC__)
+#define DECLSPEC_SELECTANY __attribute__((weak))
 #else
 #define DECLSPEC_SELECTANY
 #endif