diff --git a/crypto/sha/asm/sha1-586.pl b/crypto/sha/asm/sha1-586.pl
index ac1c9e9ded7c15b9ee3bf2cec431793005a03e6e..1084d227fe0608b7e2ac61aa92334ff195f42e3f 100644
--- a/crypto/sha/asm/sha1-586.pl
+++ b/crypto/sha/asm/sha1-586.pl
@@ -108,7 +108,7 @@ $xmm=$ymm=0;
 for (@ARGV) { $xmm=1 if (/-DOPENSSL_IA32_SSE2/); }
 
 $ymm=1 if ($xmm &&
-		`$ENV{CC} -Wa,-V -c -o /dev/null -x assembler /dev/null 2>&1`
+		`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
 			=~ /GNU assembler version ([2-9]\.[0-9]+)/ &&
 		$1>=2.19);	# first version supporting AVX
 
diff --git a/crypto/sha/asm/sha1-x86_64.pl b/crypto/sha/asm/sha1-x86_64.pl
index 5414489d692daf361a045c29450887bf0faa499d..61ec16911bcc02adad4f9eacad9c5d9630ec1bd9 100755
--- a/crypto/sha/asm/sha1-x86_64.pl
+++ b/crypto/sha/asm/sha1-x86_64.pl
@@ -72,7 +72,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-$avx=1 if (`$ENV{CC} -Wa,-V -c -o /dev/null -x assembler /dev/null 2>&1`
+$avx=1 if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
 		=~ /GNU assembler version ([2-9]\.[0-9]+)/ &&
 	   $1>=2.19);
 $avx=1 if (!$avx && $flavour =~ /nasm/ &&