Index: head/kerberos5/usr.bin/krb5-config/Makefile
===================================================================
--- head/kerberos5/usr.bin/krb5-config/Makefile	(revision 349575)
+++ head/kerberos5/usr.bin/krb5-config/Makefile	(revision 349576)
@@ -1,28 +1,32 @@
 # $FreeBSD$
 
 SCRIPTS=krb5-config
 MAN=	krb5-config.1
 
 CLEANFILES= krb5-config
 
+# In order for this to work on MacOS we need to set LC_ALL=C since the
+# krb5-config.in file contains characters that will be rejected by MacOS with
+# a UTF-8 locale (see https://stackoverflow.com/a/23584470/894271)
+# TODO: Should we just require LC_ALL=C during the build?
 krb5-config: krb5-config.in
-	sed -e "s,@PACKAGE@,FreeBSD heimdal,g" \
+	env LC_ALL=C sed -e "s,@PACKAGE@,FreeBSD heimdal,g" \
 	    -e "s,@VERSION@,1.1.0,g" \
 	    -e "s,@prefix@,/usr,g" \
 	    -e "s,@exec_prefix@,/usr,g" \
 	    -e "s,@libdir@,${LIBDIR},g" \
 	    -e "s,@includedir@,${INCLUDEDIR},g" \
 	    -e "s,@LIB_crypt@,-lcrypt,g" \
 	    -e "s,@LIB_dbopen@,,g" \
 	    -e "s,@LIB_hcrypto_appl@,-lcrypto,g" \
 	    -e "s,@LIB_pkinit@,-lhx509,g" \
 	    -e "s,@LIB_dlopen@,,g" \
 	    -e "s,@LIB_door_create@,,g" \
 	    -e "s,@PTHREAD_LIBADD@,-pthread,g" \
 	    -e "s,@LIBS@,,g" \
 	    -e "s,@INCLUDE_hcrypto@,,g" \
 	    ${.ALLSRC} > ${.TARGET}
 
 .include <bsd.prog.mk>
 
 .PATH: ${KRB5DIR}/tools