--- ffmpeg-4.3.1.old/libswscale/x86/yuv2rgb.c
+++ ffmpeg-4.3.1/libswscale/x86/yuv2rgb.c
@@ -83,6 +83,7 @@
 #if HAVE_X86ASM
     int cpu_flags = av_get_cpu_flags();
 
+#if HAVE_SSSE3
     if (EXTERNAL_SSSE3(cpu_flags)) {
         switch (c->dstFormat) {
         case AV_PIX_FMT_RGB32:
@@ -111,6 +112,7 @@
             return yuv420_rgb15_ssse3;
         }
     }
+#endif
 
     if (EXTERNAL_MMXEXT(cpu_flags)) {
         switch (c->dstFormat) {