diff --git a/gnu/usr.bin/binutils/gasp/Makefile b/gnu/usr.bin/binutils/gasp/Makefile
index aad93556e374..6369d19fbc73 100644
--- a/gnu/usr.bin/binutils/gasp/Makefile
+++ b/gnu/usr.bin/binutils/gasp/Makefile
@@ -5,12 +5,16 @@
 .PATH: ${SRCDIR}/gas
 
 PROG=	gasp
-SRCS+=	gasp.c macro.c sb.c hash.c
+SRCS+=	gasp+%FIXED.c macro.c sb.c hash.c
 WARNS=	2
 CFLAGS+= -DBFD_ASSEMBLER
-CFLAGS+= -I${SRCDIR} -I${SRCDIR}/gas -I${SRCDIR}/gas/config
 CFLAGS+= -I${.CURDIR}/../as/${TARGET_ARCH}-freebsd -I${.CURDIR}/../as
+CFLAGS+= -I${.CURDIR}
+CFLAGS+= -I${SRCDIR} -I${SRCDIR}/gas -I${SRCDIR}/gas/config
 DPADD=	${RELTOP}/libiberty/libiberty.a
 LDADD=	${DPADD}
 
+gasp+%FIXED.c: gasp.c
+	sed -e 's|xregex\.h|gnuregex.h|g' ${.ALLSRC} >${.TARGET}
+
 .include <bsd.prog.mk>