SDL_SoftStretch: disable asm path if mprotect isn't available (see bug #3816)
diff --git a/src/video/SDL_stretch.c b/src/video/SDL_stretch.c
index 1c99766..1d3610d 100644
--- a/src/video/SDL_stretch.c
+++ b/src/video/SDL_stretch.c
@@ -46,6 +46,10 @@
# undef USE_ASM_STRETCH
# endif
# endif
+/* But it doesn't work if mprotect isn't available */
+# if !defined(HAVE_MPROTECT) && defined(USE_ASM_STRETCH)
+# undef USE_ASM_STRETCH
+# endif
#endif
#ifdef USE_ASM_STRETCH