shithub: libvpx

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rtcd: fix --required flag

Always parse --required options. Previously they were only parsed for
x86_64.

Make entries passed in additive if there are existing required flags.

Mark 'neon' as required for armv8/aarch64.

BUG=chromium:876548

Change-Id: I55c6aad4536a9d8423e223e5616f3aa26d6b2941

--- a/build/make/rtcd.pl

+++ b/build/make/rtcd.pl

@@ -400,12 +400,13 @@

 #

 &require("c");

+&require(keys %required);

 if ($opts{arch} eq 'x86') {

   @ALL_ARCHS = filter(qw/mmx sse sse2 sse3 ssse3 sse4_1 avx avx2 avx512/);

   x86;

 } elsif ($opts{arch} eq 'x86_64') {

   @ALL_ARCHS = filter(qw/mmx sse sse2 sse3 ssse3 sse4_1 avx avx2 avx512/);

-  @REQUIRES = filter(keys %required ? keys %required : qw/mmx sse sse2/);

+  @REQUIRES = filter(qw/mmx sse sse2/);

   &require(@REQUIRES);

   x86;

 } elsif ($opts{arch} eq 'mips32' || $opts{arch} eq 'mips64') {

@@ -433,6 +434,7 @@

   arm;

 } elsif ($opts{arch} eq 'armv8' || $opts{arch} eq 'arm64' ) {

   @ALL_ARCHS = filter(qw/neon/);

+  &require("neon");

   arm;

 } elsif ($opts{arch} =~ /^ppc/ ) {

   @ALL_ARCHS = filter(qw/vsx/);