Fix build with clang assembler

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11219)

diff --git a/crypto/perlasm/x86_64-xlate.pl b/crypto/perlasm/x86_64-xlate.pl
index 197bc48873cabe628e54e208b3421dfbb4434d3d..ff2df7902b3262387b7db535a8d16f166f5471a8 100755 (executable)
--- a/crypto/perlasm/x86_64-xlate.pl
+++ b/crypto/perlasm/x86_64-xlate.pl
@@ -110,6 +110,11 @@ elsif (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
 {
     $gnuas=1;
 }
+elsif (`$ENV{CC} --version 2>/dev/null`
+               =~ /clang .*/)
+{
+    $gnuas=1;
+}
 
 my $cet_property;
 if ($flavour =~ /elf/) {