Enable building string functions as part of libstand on mips; the Mak…

…efile

is a bit obfuscated here, as ia64 adds string source files elsewhere, so
simply exclude it here.

Reviewed by:	imp
MFC after:	3 days
Sponsored by:	DARPA, AFRL

lib/libstand/Makefile

@@ -54,9 +54,7 @@ SRCS+= ntoh.c
 
 # string functions from libc
 .PATH: ${.CURDIR}/../libc/string
-.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "powerpc" || \
-	${MACHINE_CPUARCH} == "sparc64" || ${MACHINE_CPUARCH} == "amd64" || \
-	${MACHINE_CPUARCH} == "arm"
+.if ${MACHINE_CPUARCH} != "ia64"
 SRCS+=	bcmp.c bcopy.c bzero.c ffs.c memccpy.c memchr.c memcmp.c memcpy.c \
 	memmove.c memset.c qdivrem.c strcat.c strchr.c strcmp.c strcpy.c \
 	strcspn.c strlen.c strncat.c strncmp.c strncpy.c strpbrk.c \