A few fixes to get this building on Linux again

src/stdlib/SDL_getenv.c

@@ -23,6 +23,7 @@
 #include "SDL_stdlib.h"
 #include "SDL_string.h"
 
+#ifndef HAVE_GETENV
 
 #if defined(WIN32) && !defined(_WIN32_WCE)
 
@@ -173,6 +174,8 @@ char *SDL_getenv(const char *name)
 
 #endif /* WIN32 */
 
+#endif /* !HAVE_GETENV */
+
 #ifdef TEST_MAIN
 #include <stdio.h>
 

src/stdlib/SDL_qsort.c

@@ -415,4 +415,4 @@ void SDL_qsort(void *base, size_t nmemb, size_t size,
     qsort_words(base,nmemb,compare);
 }
 
-#endif /* !HAVE_QSORT */
+#endif /* !HAVE_QSORT */

src/stdlib/SDL_stdlib.c

@@ -67,4 +67,4 @@ void _aullshr()
 
 #endif /* MSC_VER */
 
-#endif /* !HAVE_LIBC */
+#endif /* !HAVE_LIBC */