libvpx: Pull from upstream

source/libvpx/build/make/rtcd.sh

 #!/bin/sh
 self=$0
 
 usage() {
   cat <<EOF >&2
 Usage: $self [options] FILE
 
 Reads the Run Time CPU Detections definitions from FILE and generates a
 C header file on stdout.
 
@@ skipping 315 matching lines @@
 $(set_function_pointers c)
 }
 #endif
 $(common_bottom)
 EOF
 
 }
 #
 # Main Driver
 #
+ALL_FUNCS=$(export LC_ALL=C; echo $ALL_FUNCS | tr ' ' '\n' | sort |tr '\n' ' ')
 require c
 case $arch in
   x86)
     ALL_ARCHS=$(filter mmx sse sse2 sse3 ssse3 sse4_1 avx avx2)
     x86
     ;;
   x86_64)
     ALL_ARCHS=$(filter mmx sse sse2 sse3 ssse3 sse4_1 avx avx2)
     REQUIRES=${REQUIRES:-mmx sse sse2}
     require $(filter $REQUIRES)
@@ skipping 17 matching lines @@
     arm
     ;;
   armv7)
     ALL_ARCHS=$(filter edsp media neon)
     arm
     ;;
   *)
     unoptimized
     ;;
 esac