diff --git a/gnu/lib/libgmp/Makefile b/gnu/lib/libgmp/Makefile
index 12b9b8cdaf4..e63e1e123a2 100644
--- a/gnu/lib/libgmp/Makefile
+++ b/gnu/lib/libgmp/Makefile
@@ -37,6 +37,10 @@ CFLAGS+=	-I${GMPDIR}/mpn/m68k
 
 MPN_SRC_ASM=	add_n.S lshift.S rshift.S sub_n.S
 
+.elif ${MACHINE_ARCH} == "sparc" || ${MACHINE_ARCH} == "sparc64"
+.PATH:		${GMPDIR}/mpn/generic
+
+MPN_SRC_ASM=
 .endif
 
 CFLAGS+=	-I${GMPDIR} -I${GMPDIR}/mpn/generic
diff --git a/gnu/lib/libmp/Makefile b/gnu/lib/libmp/Makefile
index 8a37ed83490..127384a57b8 100644
--- a/gnu/lib/libmp/Makefile
+++ b/gnu/lib/libmp/Makefile
@@ -37,6 +37,13 @@ CFLAGS+=	-I${GMPDIR}/mpn/m68k -I${GMPDIR}/mpz -DBERKELEY_MP
 
 MPN_SRC_ASM=	add_n.S lshift.S rshift.S sub_n.S
 
+.elif ${MACHINE_ARCH} == "sparc" || ${MACHINE_ARCH} == "sparc64"
+.PATH:		${GMPDIR} ${GMPDIR}/mpn ${GMPDIR}/mpn/generic \
+		${GMPDIR}/mpbsd
+
+CFLAGS+=	-I${GMPDIR}/mpz -DBERKELEY_MP
+
+MPN_SRC_ASM=
 .endif
 
 CFLAGS+=	-I${GMPDIR} -I${GMPDIR}/mpn/generic