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dynapi: use DosScanEnv() for os/2. 

(cherry picked from commit ee49025f80)
This commit is contained in:
Ozkan Sezer 2025-02-20 11:50:04 +03:00
parent 8b0c9e1dce
commit 63bb1a8583
1 changed files with 8 additions and 3 deletions
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11
src/dynapi/SDL_dynapi.c
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@ -440,19 +440,24 @@ extern SDL_NORETURN void SDL_ExitProcess(int exitcode);
static void SDL_InitDynamicAPILocked(void)
{
SDL_DYNAPI_ENTRYFN entry = NULL; /* funcs from here by default. */
SDL_bool use_internal = SDL_TRUE;
/* this can't use SDL_getenv_REAL, because it might allocate memory before the app can set their allocator */
#if defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__)
/* We've always used LoadLibraryA for this, so this has never worked with Unicode paths on Windows. Sorry. */
char envbuf[512]; /* overflows will just report as environment variable being unset, but LoadLibraryA has a MAX_PATH of 260 anyhow, apparently. */
const DWORD rc = GetEnvironmentVariableA(SDL_DYNAMIC_API_ENVVAR, envbuf, (DWORD) sizeof (envbuf));
char *libname = ((rc != 0) && (rc < sizeof (envbuf))) ? envbuf : NULL;
#elif defined(__OS2__)
char * libname;
if (DosScanEnv(SDL_DYNAMIC_API_ENVVAR, &libname) != NO_ERROR) {
libname = NULL;
}
#else
char *libname = getenv(SDL_DYNAMIC_API_ENVVAR);
#endif
SDL_DYNAPI_ENTRYFN entry = NULL; /* funcs from here by default. */
SDL_bool use_internal = SDL_TRUE;
if (libname) {
while (*libname && !entry) {
char *ptr = libname;