Commit 9fae8f7088efab699fcec3e8086db5f40c899314

Lee Salzman 2021-08-29T15:33:58

Treat empty SDL_VIDEODRIVER var to check all video drivers.

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diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
index 160190d..07c7aa5 100644
--- a/src/video/SDL_video.c
+++ b/src/video/SDL_video.c
@@ -489,7 +489,7 @@ SDL_VideoInit(const char *driver_name)
     if (driver_name == NULL) {
         driver_name = SDL_getenv("SDL_VIDEODRIVER");
     }
-    if (driver_name != NULL) {
+    if (driver_name != NULL && *driver_name != 0) {
         const char *driver_attempt = driver_name;
         while(driver_attempt != NULL && *driver_attempt != 0 && video == NULL) {
             const char* driver_attempt_end = SDL_strchr(driver_attempt, ',');