Fix generator glue to only expose extern struct units %s_units[] is

struct units defintition it known. The above construct is treated
as an incorrect C by GCC 4.2 otherwise.

kerberos5/tools/asn1_compile/Makefile

@@ -8,7 +8,7 @@ SRCS=	gen.c \
 	gen_decode.c \
 	gen_encode.c \
 	gen_free.c \
-	gen_glue.c \
+	gen_glue-fixed.c \
 	gen_length.c \
 	hash.c \
 	emalloc.c \
@@ -40,6 +40,11 @@ roken.h: ../make-roken/make-roken
 ../make-roken/make-roken: .PHONY
 	cd ${.CURDIR}/../make-roken && ${MAKE}
 
+gen_glue-fixed.c: gen_glue.c
+	 sed -e '106s/"/"#ifdef __PARSE_UNITS_H__\\n/;'\
+	     -e '106s/",/\\n#endif\\n",/' ${.ALLSRC} > ${.TARGET}
+CLEANFILES+= gen_glue-fixed.c
+
 .include <bsd.prog.mk>
 
 # There are two print_version.c's, the one we need is in ${KRB5DIR}/lib/vers,