x11vulkan: Use the correct SONAME of libX11-xcb.so.1 on Linux, etc.

On most Unix platforms supported by SDL, the canonical name used to load a library at runtime includes its ABI major version, and the name without a version is not guaranteed to exist on non-developer systems. libX11-xcb.so.1 is correct on Linux, and probably on other Unix platforms like FreeBSD. A notable exception is OpenBSD, which apparently does not use ABI-suffixed names, so continue to use libX11-xcb.so there. Signed-off-by: Simon McVittie <[email protected]> (cherry picked from commit 7713a7e) (cherry picked from commit 54757c2)
libsdl-org · Sep 9, 2024 · 38d3b1b · 38d3b1b
1 parent 1df907b
commit 38d3b1b
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/video/x11/SDL_x11vulkan.c b/src/video/x11/SDL_x11vulkan.c
@@ -32,8 +32,10 @@
 
 #if defined(__OpenBSD__)
 #define DEFAULT_VULKAN "libvulkan.so"
+#define DEFAULT_X11_XCB "libX11-xcb.so"
 #else
 #define DEFAULT_VULKAN "libvulkan.so.1"
+#define DEFAULT_X11_XCB "libX11-xcb.so.1"
 #endif
 
 /*
@@ -108,7 +110,7 @@ int X11_Vulkan_LoadLibrary(_THIS, const char *path)
     } else {
         const char *libX11XCBLibraryName = SDL_getenv("SDL_X11_XCB_LIBRARY");
         if (!libX11XCBLibraryName) {
-            libX11XCBLibraryName = "libX11-xcb.so";
+            libX11XCBLibraryName = DEFAULT_X11_XCB;
         }
         videoData->vulkan_xlib_xcb_library = SDL_LoadObject(libX11XCBLibraryName);
         if (!videoData->vulkan_xlib_xcb_library) {