diff --git a/crypto/aes/asm/aes-x86_64.pl b/crypto/aes/asm/aes-x86_64.pl
index 48fa857d5..91459287d 100755
--- a/crypto/aes/asm/aes-x86_64.pl
+++ b/crypto/aes/asm/aes-x86_64.pl
@@ -36,7 +36,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 $verticalspin=1;	# unlike 32-bit version $verticalspin performs
 			# ~15% better on both AMD and Intel cores
diff --git a/crypto/aes/asm/aesni-sha1-x86_64.pl b/crypto/aes/asm/aesni-sha1-x86_64.pl
index c6f6b3334..e91a13caf 100644
--- a/crypto/aes/asm/aesni-sha1-x86_64.pl
+++ b/crypto/aes/asm/aesni-sha1-x86_64.pl
@@ -69,7 +69,7 @@ $avx=1 if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
 	   `ml64 2>&1` =~ /Version ([0-9]+)\./ &&
 	   $1>=10);
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 # void aesni_cbc_sha1_enc(const void *inp,
 #			void *out,
diff --git a/crypto/aes/asm/aesni-x86_64.pl b/crypto/aes/asm/aesni-x86_64.pl
index 499f3b3f4..f0f770ac5 100644
--- a/crypto/aes/asm/aesni-x86_64.pl
+++ b/crypto/aes/asm/aesni-x86_64.pl
@@ -172,7 +172,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 $movkey = $PREFIX eq "aesni" ? "movups" : "movups";
 @_4args=$win64?	("%rcx","%rdx","%r8", "%r9") :	# Win64 order
diff --git a/crypto/aes/asm/bsaes-x86_64.pl b/crypto/aes/asm/bsaes-x86_64.pl
index c9c6312fa..f5f05c0e7 100644
--- a/crypto/aes/asm/bsaes-x86_64.pl
+++ b/crypto/aes/asm/bsaes-x86_64.pl
@@ -105,7 +105,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 my ($inp,$out,$len,$key,$ivp)=("%rdi","%rsi","%rdx","%rcx");
 my @XMM=map("%xmm$_",(15,0..14));	# best on Atom, +10% over (0..15)
diff --git a/crypto/aes/asm/vpaes-x86_64.pl b/crypto/aes/asm/vpaes-x86_64.pl
index 37998db5e..8455c9083 100644
--- a/crypto/aes/asm/vpaes-x86_64.pl
+++ b/crypto/aes/asm/vpaes-x86_64.pl
@@ -56,7 +56,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 $PREFIX="vpaes";
 
diff --git a/crypto/bn/asm/modexp512-x86_64.pl b/crypto/bn/asm/modexp512-x86_64.pl
index 54aeb0192..28b6dab2f 100644
--- a/crypto/bn/asm/modexp512-x86_64.pl
+++ b/crypto/bn/asm/modexp512-x86_64.pl
@@ -68,7 +68,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 use strict;
 my $code=".text\n\n";
diff --git a/crypto/bn/asm/x86_64-gf2m.pl b/crypto/bn/asm/x86_64-gf2m.pl
index 1658acbbd..a30d4ef02 100644
--- a/crypto/bn/asm/x86_64-gf2m.pl
+++ b/crypto/bn/asm/x86_64-gf2m.pl
@@ -31,7 +31,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 ($lo,$hi)=("%rax","%rdx");	$a=$lo;
 ($i0,$i1)=("%rsi","%rdi");
diff --git a/crypto/bn/asm/x86_64-mont.pl b/crypto/bn/asm/x86_64-mont.pl
index 5d79b35e1..22fe51b5e 100755
--- a/crypto/bn/asm/x86_64-mont.pl
+++ b/crypto/bn/asm/x86_64-mont.pl
@@ -40,7 +40,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 # int bn_mul_mont(
 $rp="%rdi";	# BN_ULONG *rp,
diff --git a/crypto/bn/asm/x86_64-mont5.pl b/crypto/bn/asm/x86_64-mont5.pl
index 057cda28a..f63760306 100755
--- a/crypto/bn/asm/x86_64-mont5.pl
+++ b/crypto/bn/asm/x86_64-mont5.pl
@@ -28,7 +28,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 # int bn_mul_mont_gather5(
 $rp="%rdi";	# BN_ULONG *rp,
diff --git a/crypto/camellia/asm/cmll-x86_64.pl b/crypto/camellia/asm/cmll-x86_64.pl
index 76955e472..10e229828 100644
--- a/crypto/camellia/asm/cmll-x86_64.pl
+++ b/crypto/camellia/asm/cmll-x86_64.pl
@@ -40,7 +40,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 sub hi() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1h/;    $r; }
 sub lo() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1l/;
diff --git a/crypto/md5/asm/md5-x86_64.pl b/crypto/md5/asm/md5-x86_64.pl
index 867885435..721f0490f 100755
--- a/crypto/md5/asm/md5-x86_64.pl
+++ b/crypto/md5/asm/md5-x86_64.pl
@@ -120,7 +120,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; my $dir=$1; my $xlate;
 die "can't locate x86_64-xlate.pl";
 
 no warnings qw(uninitialized);
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 $code .= <<EOF;
 .text
diff --git a/crypto/modes/asm/ghash-x86_64.pl b/crypto/modes/asm/ghash-x86_64.pl
index a5ae18088..b9f5f5cde 100644
--- a/crypto/modes/asm/ghash-x86_64.pl
+++ b/crypto/modes/asm/ghash-x86_64.pl
@@ -50,7 +50,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 # common register layout
 $nlo="%rax";
diff --git a/crypto/rc4/asm/rc4-md5-x86_64.pl b/crypto/rc4/asm/rc4-md5-x86_64.pl
index 7f684092d..87e737c54 100644
--- a/crypto/rc4/asm/rc4-md5-x86_64.pl
+++ b/crypto/rc4/asm/rc4-md5-x86_64.pl
@@ -51,7 +51,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; my $dir=$1; my $xlate;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 my ($dat,$in0,$out,$ctx,$inp,$len, $func,$nargs);
 
diff --git a/crypto/rc4/asm/rc4-x86_64.pl b/crypto/rc4/asm/rc4-x86_64.pl
index d6eac205e..28bb3624a 100755
--- a/crypto/rc4/asm/rc4-x86_64.pl
+++ b/crypto/rc4/asm/rc4-x86_64.pl
@@ -112,7 +112,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 $dat="%rdi";	    # arg1
 $len="%rsi";	    # arg2
diff --git a/crypto/sha/asm/sha1-x86_64.pl b/crypto/sha/asm/sha1-x86_64.pl
index f27c1e3fb..a9aab3a78 100755
--- a/crypto/sha/asm/sha1-x86_64.pl
+++ b/crypto/sha/asm/sha1-x86_64.pl
@@ -82,7 +82,7 @@ $avx=1 if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
 	   `ml64 2>&1` =~ /Version ([0-9]+)\./ &&
 	   $1>=10);
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 $ctx="%rdi";	# 1st arg
 $inp="%rsi";	# 2nd arg
diff --git a/crypto/sha/asm/sha512-x86_64.pl b/crypto/sha/asm/sha512-x86_64.pl
index f611a2d89..d2b194eb8 100755
--- a/crypto/sha/asm/sha512-x86_64.pl
+++ b/crypto/sha/asm/sha512-x86_64.pl
@@ -51,7 +51,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 if ($output =~ /512/) {
 	$func="sha512_block_data_order";
diff --git a/crypto/whrlpool/asm/wp-x86_64.pl b/crypto/whrlpool/asm/wp-x86_64.pl
index 87c0843dc..9be1cc223 100644
--- a/crypto/whrlpool/asm/wp-x86_64.pl
+++ b/crypto/whrlpool/asm/wp-x86_64.pl
@@ -41,7 +41,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; my $dir=$1; my $xlate;
 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 sub L() { $code.=".byte	".join(',',@_)."\n"; }
 sub LL(){ $code.=".byte	".join(',',@_).",".join(',',@_)."\n"; }
diff --git a/crypto/x86_64cpuid.pl b/crypto/x86_64cpuid.pl
index 7b7b93b22..d7723a474 100644
--- a/crypto/x86_64cpuid.pl
+++ b/crypto/x86_64cpuid.pl
@@ -11,7 +11,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 ( $xlate="${dir}perlasm/x86_64-xlate.pl" and -f $xlate) or
 die "can't locate x86_64-xlate.pl";
 
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
 
 ($arg1,$arg2,$arg3,$arg4)=$win64?("%rcx","%rdx","%r8", "%r9") :	# Win64 order
 				 ("%rdi","%rsi","%rdx","%rcx");	# Unix order
diff --git a/ms/uplink-x86_64.pl b/ms/uplink-x86_64.pl
index 9acbf6be6..2758c86d1 100755
--- a/ms/uplink-x86_64.pl
+++ b/ms/uplink-x86_64.pl
@@ -2,7 +2,7 @@
 
 $output=shift;
 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
-open STDOUT,"| $^X ${dir}../crypto/perlasm/x86_64-xlate.pl $output";
+open STDOUT,"| \"$^X\" ${dir}../crypto/perlasm/x86_64-xlate.pl $output";
 push(@INC,"${dir}.");
 
 require "uplink-common.pl";