diff --git a/secure/lib/libcrypto/Makefile.asm b/secure/lib/libcrypto/Makefile.asm
--- a/secure/lib/libcrypto/Makefile.asm
+++ b/secure/lib/libcrypto/Makefile.asm
@@ -45,20 +45,17 @@
 ASM=	${SRCS:R:S/$/.S/} sha256-armv8.S
 
 all:	${ASM}
-	rm -f ${ASM:R:S/$/.s/}
 
 CLEANFILES=	${ASM}
 .SUFFIXES:	.pl
 
 sha256-armv8.S:	sha512-armv8.pl
-	env CC=cc perl ${.ALLSRC} linux64 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.ALLSRC} linux64 /dev/stdout) > ${.TARGET}
 
 .pl.S:
-	env CC=cc perl ${.IMPSRC} linux64 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.IMPSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.IMPSRC} linux64 /dev/stdout) > ${.TARGET}
 
 .elif defined(ASM_amd64)
 
@@ -184,15 +181,13 @@
 ASM=	${SRCS:R:S/$/.S/}
 
 all:	${ASM}
-	rm -f ${ASM:R:S/$/.s/}	
 
 CLEANFILES=	${ASM}
 .SUFFIXES:	.pl
 
 .pl.S:
-	env CC=cc perl ${.IMPSRC} linux32 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.IMPSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.IMPSRC} linux32 /dev/stdout) > ${.TARGET}
 
 .elif defined(ASM_i386)
 
@@ -323,30 +318,25 @@
 ASM=	${SRCS:R:S/$/.S/} bn-ppc.S sha256-ppc.S sha256p8-ppc.S
 
 all:	${ASM}
-	rm -f ${ASM:R:S/$/.s/}
 
 CLEANFILES=	${ASM}
 .SUFFIXES:	.pl
 
 bn-ppc.S:	ppc.pl
-	env CC=cc perl ${.ALLSRC} linux32 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.ALLSRC} linux32 /dev/stdout) > ${.TARGET}
 
 sha256-ppc.S:	sha512-ppc.pl
-	env CC=cc perl ${.ALLSRC} linux32 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.ALLSRC} linux32 /dev/stdout) > ${.TARGET}
 
 sha256p8-ppc.S:	sha512p8-ppc.pl
-	env CC=cc perl ${.ALLSRC} linux32 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.ALLSRC} linux32 /dev/stdout) > ${.TARGET}
 
 .pl.S:
-	env CC=cc perl ${.IMPSRC} linux32 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.IMPSRC} linux32 /dev/stdout) > ${.TARGET}
 
 .elif defined(ASM_powerpc64)
 
@@ -391,30 +381,25 @@
 ASM=	${SRCS:R:S/$/.S/} bn-ppc.S sha256-ppc.S sha256p8-ppc.S
 
 all:	${ASM}
-	rm -f ${ASM:R:S/$/.s/}
 
 CLEANFILES=	${ASM}
 .SUFFIXES:	.pl
 
 bn-ppc.S:	ppc.pl
-	env CC=cc perl ${.ALLSRC} linux64v2 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.ALLSRC} linux64v2 /dev/stdout) > ${.TARGET}
 
 sha256-ppc.S:	sha512-ppc.pl
-	env CC=cc perl ${.ALLSRC} linux64v2 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.ALLSRC} linux64v2 /dev/stdout) > ${.TARGET}
 
 sha256p8-ppc.S:	sha512p8-ppc.pl
-	env CC=cc perl ${.ALLSRC} linux64v2 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.ALLSRC} linux64v2 /dev/stdout) > ${.TARGET}
 
 .pl.S:
-	env CC=cc perl ${.IMPSRC} linux64v2 ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.IMPSRC} linux64v2 /dev/stdout) > ${.TARGET}
 
 .elif defined(ASM_powerpc64le)
 
@@ -459,30 +444,25 @@
 ASM=	${SRCS:R:S/$/.S/} bn-ppc.S sha256-ppc.S sha256p8-ppc.S
 
 all:	${ASM}
-	rm -f ${ASM:R:S/$/.s/}
 
 CLEANFILES=	${ASM}
 .SUFFIXES:	.pl
 
 bn-ppc.S:	ppc.pl
-	env CC=cc perl ${.ALLSRC} linux64le ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.ALLSRC} linux64le /dev/stdout) > ${.TARGET}
 
 sha256-ppc.S:	sha512-ppc.pl
-	env CC=cc perl ${.ALLSRC} linux64le ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.ALLSRC} linux64le /dev/stdout) > ${.TARGET}
 
 sha256p8-ppc.S:	sha512p8-ppc.pl
-	env CC=cc perl ${.ALLSRC} linux64le ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.ALLSRC} linux64le /dev/stdout) > ${.TARGET}
 
 .pl.S:
-	env CC=cc perl ${.IMPSRC} linux64le ${.TARGET:R:S/$/.s/}
 	( echo '/* Do not modify. This file is auto-generated from ${.ALLSRC:T}. */' ;\
-	cat ${.TARGET:R:S/$/.s/}) > ${.TARGET}
+	env CC=cc perl ${.IMPSRC} linux64le /dev/stdout) > ${.TARGET}
 
 .endif