diff --git a/lang/cem/libcc/gen/_c2type.c b/lang/cem/libcc/gen/_c2type.c
index c66616ee..210cfb23 100644
--- a/lang/cem/libcc/gen/_c2type.c
+++ b/lang/cem/libcc/gen/_c2type.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*  File   : _c2type.c
     Author : Richard A. O'Keefe.
     Updated: 23 April 1984
diff --git a/lang/cem/libcc/gen/abs.c b/lang/cem/libcc/gen/abs.c
index bd54e264..5039a064 100644
--- a/lang/cem/libcc/gen/abs.c
+++ b/lang/cem/libcc/gen/abs.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 abs(i){
   return i < 0 ? -i : i;
 }
diff --git a/lang/cem/libcc/gen/asctime.c b/lang/cem/libcc/gen/asctime.c
index fc3034ed..5332b8e7 100644
--- a/lang/cem/libcc/gen/asctime.c
+++ b/lang/cem/libcc/gen/asctime.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <time.h>
 
 #define DATE_STR "??? ??? ?? ??:??:?? ????\n"
diff --git a/lang/cem/libcc/gen/atof.c b/lang/cem/libcc/gen/atof.c
index e98cc449..5f6c6494 100644
--- a/lang/cem/libcc/gen/atof.c
+++ b/lang/cem/libcc/gen/atof.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #ifndef NOFLOAT
 #include <ctype.h>
 
diff --git a/lang/cem/libcc/gen/atoi.c b/lang/cem/libcc/gen/atoi.c
index 8692465e..d3dd5e9d 100644
--- a/lang/cem/libcc/gen/atoi.c
+++ b/lang/cem/libcc/gen/atoi.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 atoi(s)
 register char *s;
 {
diff --git a/lang/cem/libcc/gen/atol.c b/lang/cem/libcc/gen/atol.c
index ef64b61d..aececc16 100644
--- a/lang/cem/libcc/gen/atol.c
+++ b/lang/cem/libcc/gen/atol.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 long atol(s)
 register char *s;
 {
diff --git a/lang/cem/libcc/gen/bcmp.c b/lang/cem/libcc/gen/bcmp.c
index cf8c0cbe..92d54460 100644
--- a/lang/cem/libcc/gen/bcmp.c
+++ b/lang/cem/libcc/gen/bcmp.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 int
 bcmp(b1, b2, n)
 	register char *b1, *b2;
diff --git a/lang/cem/libcc/gen/bcopy.c b/lang/cem/libcc/gen/bcopy.c
index 96b64d69..7b3be222 100644
--- a/lang/cem/libcc/gen/bcopy.c
+++ b/lang/cem/libcc/gen/bcopy.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 bcopy(old, new, n)
 register char *old, *new;
 register int n;
diff --git a/lang/cem/libcc/gen/bfill.c b/lang/cem/libcc/gen/bfill.c
index 9a261720..cc29f84b 100644
--- a/lang/cem/libcc/gen/bfill.c
+++ b/lang/cem/libcc/gen/bfill.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 bfill(dst, len, fill)
 	register char *dst;
 	register int len;
diff --git a/lang/cem/libcc/gen/bmove.c b/lang/cem/libcc/gen/bmove.c
index 665bdd56..37edd8d2 100644
--- a/lang/cem/libcc/gen/bmove.c
+++ b/lang/cem/libcc/gen/bmove.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 bmove(dst, src, len)
 	char *dst, *src;
 	int len;
diff --git a/lang/cem/libcc/gen/bzero.c b/lang/cem/libcc/gen/bzero.c
index d4337a04..f570f09b 100644
--- a/lang/cem/libcc/gen/bzero.c
+++ b/lang/cem/libcc/gen/bzero.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 bzero(b, l)
 	register char *b;
 {
diff --git a/lang/cem/libcc/gen/calloc.c b/lang/cem/libcc/gen/calloc.c
index 24830086..23262d49 100644
--- a/lang/cem/libcc/gen/calloc.c
+++ b/lang/cem/libcc/gen/calloc.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #define ALIGN(sz)	(((sz) + (sizeof(long) - 1) / sizeof(long)) * sizeof(long))
 char *
 calloc(nelem, elsize)
diff --git a/lang/cem/libcc/gen/closedir.c b/lang/cem/libcc/gen/closedir.c
index bea1b1f5..cddafc89 100644
--- a/lang/cem/libcc/gen/closedir.c
+++ b/lang/cem/libcc/gen/closedir.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <sys/types.h>
 #include <sys/dir.h>
 
diff --git a/lang/cem/libcc/gen/crypt.c b/lang/cem/libcc/gen/crypt.c
index b9b09f03..24d3e319 100644
--- a/lang/cem/libcc/gen/crypt.c
+++ b/lang/cem/libcc/gen/crypt.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*	From Andy Tanenbaum's book "Computer Networks",
 	rewritten in C
 */
diff --git a/lang/cem/libcc/gen/ctime.c b/lang/cem/libcc/gen/ctime.c
index 772e3eb8..da201e4c 100644
--- a/lang/cem/libcc/gen/ctime.c
+++ b/lang/cem/libcc/gen/ctime.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <time.h>
 
 extern struct tm *localtime();
diff --git a/lang/cem/libcc/gen/ecvt.c b/lang/cem/libcc/gen/ecvt.c
index 3d514767..f91fcf35 100644
--- a/lang/cem/libcc/gen/ecvt.c
+++ b/lang/cem/libcc/gen/ecvt.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #ifndef NOFLOAT
 extern double modf();
 static char *cvt();
diff --git a/lang/cem/libcc/gen/execvp.c b/lang/cem/libcc/gen/execvp.c
index 165d3311..aa05c3fe 100644
--- a/lang/cem/libcc/gen/execvp.c
+++ b/lang/cem/libcc/gen/execvp.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char    *getenv();
 char	*index();
 
diff --git a/lang/cem/libcc/gen/ffc.c b/lang/cem/libcc/gen/ffc.c
index 3ab2a24e..74aa0094 100644
--- a/lang/cem/libcc/gen/ffc.c
+++ b/lang/cem/libcc/gen/ffc.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 ffc(i)
 	register int i;
 {
diff --git a/lang/cem/libcc/gen/ffs.c b/lang/cem/libcc/gen/ffs.c
index 471fdf00..cd25fc96 100644
--- a/lang/cem/libcc/gen/ffs.c
+++ b/lang/cem/libcc/gen/ffs.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 ffs(i)
 	register int i;
 {
diff --git a/lang/cem/libcc/gen/gcvt.c b/lang/cem/libcc/gen/gcvt.c
index d9b12710..f8c08028 100644
--- a/lang/cem/libcc/gen/gcvt.c
+++ b/lang/cem/libcc/gen/gcvt.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #ifndef NOFLOAT
 extern char	*ecvt();
 
diff --git a/lang/cem/libcc/gen/getenv.c b/lang/cem/libcc/gen/getenv.c
index 2793023a..360be4d5 100644
--- a/lang/cem/libcc/gen/getenv.c
+++ b/lang/cem/libcc/gen/getenv.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *getenv(name)
 register char *name;
 {
diff --git a/lang/cem/libcc/gen/getlogin.c b/lang/cem/libcc/gen/getlogin.c
index 040a9914..0f7485e9 100644
--- a/lang/cem/libcc/gen/getlogin.c
+++ b/lang/cem/libcc/gen/getlogin.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #define UTMPFILE "/etc/utmp"
 
 #ifdef __USG
diff --git a/lang/cem/libcc/gen/getopt.c b/lang/cem/libcc/gen/getopt.c
index c0c973a0..7e4b0d3d 100644
--- a/lang/cem/libcc/gen/getopt.c
+++ b/lang/cem/libcc/gen/getopt.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include	<stdio.h>
 #define ERR(s, c)       if(opterr){\
 	fputs(argv[0], stderr);\
diff --git a/lang/cem/libcc/gen/gmtime.c b/lang/cem/libcc/gen/gmtime.c
index 3ed85968..6615e044 100644
--- a/lang/cem/libcc/gen/gmtime.c
+++ b/lang/cem/libcc/gen/gmtime.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <time.h>
 
 static int monthsize[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
diff --git a/lang/cem/libcc/gen/index.c b/lang/cem/libcc/gen/index.c
index 2ad8b3b0..10167345 100644
--- a/lang/cem/libcc/gen/index.c
+++ b/lang/cem/libcc/gen/index.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *index(s, c)
 register char *s, c;
 {
diff --git a/lang/cem/libcc/gen/isatty.c b/lang/cem/libcc/gen/isatty.c
index b68171fe..0449a880 100644
--- a/lang/cem/libcc/gen/isatty.c
+++ b/lang/cem/libcc/gen/isatty.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 isatty(f)
 {
 	char buf[128];
diff --git a/lang/cem/libcc/gen/l3.c b/lang/cem/libcc/gen/l3.c
index c88d079c..642552df 100644
--- a/lang/cem/libcc/gen/l3.c
+++ b/lang/cem/libcc/gen/l3.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 ltol3(cp, lp, n)
 register char	*cp;
 register long	*lp;
diff --git a/lang/cem/libcc/gen/ldexp.c b/lang/cem/libcc/gen/ldexp.c
index 08f580e9..ea775c98 100644
--- a/lang/cem/libcc/gen/ldexp.c
+++ b/lang/cem/libcc/gen/ldexp.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #ifndef NOFLOAT
 extern double frexp();
 
diff --git a/lang/cem/libcc/gen/localtime.c b/lang/cem/libcc/gen/localtime.c
index 36c5a2a6..fa28aa37 100644
--- a/lang/cem/libcc/gen/localtime.c
+++ b/lang/cem/libcc/gen/localtime.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <time.h>
 
 #define YEARSIZE(year)	((year) % 4 ? 365 : 366)
diff --git a/lang/cem/libcc/gen/malloc.c b/lang/cem/libcc/gen/malloc.c
index 9df169c2..6463abcb 100644
--- a/lang/cem/libcc/gen/malloc.c
+++ b/lang/cem/libcc/gen/malloc.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 
 #define CLICK_SIZE	16
 #if EM_WSIZE == EM_PSIZE
diff --git a/lang/cem/libcc/gen/memccpy.c b/lang/cem/libcc/gen/memccpy.c
index 608f2117..da25ddbf 100644
--- a/lang/cem/libcc/gen/memccpy.c
+++ b/lang/cem/libcc/gen/memccpy.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *
 memccpy(dst, src, c, n)
 	register char *dst, *src;
diff --git a/lang/cem/libcc/gen/memchr.c b/lang/cem/libcc/gen/memchr.c
index 4382bff3..68e9195d 100644
--- a/lang/cem/libcc/gen/memchr.c
+++ b/lang/cem/libcc/gen/memchr.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *
 memchr(s, c, n)
 char *s;
diff --git a/lang/cem/libcc/gen/memcmp.c b/lang/cem/libcc/gen/memcmp.c
index e3711bbb..4e633315 100644
--- a/lang/cem/libcc/gen/memcmp.c
+++ b/lang/cem/libcc/gen/memcmp.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 int
 memcmp(s1, s2, n)
 register char *s1, *s2;
diff --git a/lang/cem/libcc/gen/memcpy.c b/lang/cem/libcc/gen/memcpy.c
index f4b3a40f..9dd01813 100644
--- a/lang/cem/libcc/gen/memcpy.c
+++ b/lang/cem/libcc/gen/memcpy.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *
 memcpy(s1, s2, n)
 register char *s1, *s2;
diff --git a/lang/cem/libcc/gen/memset.c b/lang/cem/libcc/gen/memset.c
index fd9a04fa..cf08e27b 100644
--- a/lang/cem/libcc/gen/memset.c
+++ b/lang/cem/libcc/gen/memset.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *
 memset(s, c, n)
 	char *s;
diff --git a/lang/cem/libcc/gen/mktemp.c b/lang/cem/libcc/gen/mktemp.c
index 6bc86e19..c5af63dd 100644
--- a/lang/cem/libcc/gen/mktemp.c
+++ b/lang/cem/libcc/gen/mktemp.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /* mktemp - make a name for a temporary file */
 
 char *mktemp(template)
diff --git a/lang/cem/libcc/gen/monitor.c b/lang/cem/libcc/gen/monitor.c
index 910ba2e3..98ac6f21 100644
--- a/lang/cem/libcc/gen/monitor.c
+++ b/lang/cem/libcc/gen/monitor.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 static int bs;
 static char *bp;
 static char *bufp;
diff --git a/lang/cem/libcc/gen/opendir.c b/lang/cem/libcc/gen/opendir.c
index caff6a98..6c16e5f9 100644
--- a/lang/cem/libcc/gen/opendir.c
+++ b/lang/cem/libcc/gen/opendir.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/dir.h>
diff --git a/lang/cem/libcc/gen/perror.c b/lang/cem/libcc/gen/perror.c
index 5dbd9de7..dc51b70d 100644
--- a/lang/cem/libcc/gen/perror.c
+++ b/lang/cem/libcc/gen/perror.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /* perror(s) print the current error message. */
 
 extern int errno;
diff --git a/lang/cem/libcc/gen/procentry.c b/lang/cem/libcc/gen/procentry.c
index 43ebe987..94b73888 100644
--- a/lang/cem/libcc/gen/procentry.c
+++ b/lang/cem/libcc/gen/procentry.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
  *
diff --git a/lang/cem/libcc/gen/qsort.c b/lang/cem/libcc/gen/qsort.c
index 37721dfc..0095702b 100644
--- a/lang/cem/libcc/gen/qsort.c
+++ b/lang/cem/libcc/gen/qsort.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 static	qsort1();
 static	int (*qcompar)();
 static	qexchange();
diff --git a/lang/cem/libcc/gen/rand.c b/lang/cem/libcc/gen/rand.c
index 4ff9f975..e0fef459 100644
--- a/lang/cem/libcc/gen/rand.c
+++ b/lang/cem/libcc/gen/rand.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 static long seed = 1L;
 
 int rand()
diff --git a/lang/cem/libcc/gen/readdir.c b/lang/cem/libcc/gen/readdir.c
index 6fc497e5..2a86ce99 100644
--- a/lang/cem/libcc/gen/readdir.c
+++ b/lang/cem/libcc/gen/readdir.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <sys/types.h>
 #include <sys/dir.h>
 
diff --git a/lang/cem/libcc/gen/rindex.c b/lang/cem/libcc/gen/rindex.c
index 9fe982af..52afb59e 100644
--- a/lang/cem/libcc/gen/rindex.c
+++ b/lang/cem/libcc/gen/rindex.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *rindex(s, c)
 register char *s, c;
 {
diff --git a/lang/cem/libcc/gen/seekdir.c b/lang/cem/libcc/gen/seekdir.c
index 3c90756a..78aaa074 100644
--- a/lang/cem/libcc/gen/seekdir.c
+++ b/lang/cem/libcc/gen/seekdir.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <sys/types.h>
 #include <sys/dir.h>
 
diff --git a/lang/cem/libcc/gen/sleep.c b/lang/cem/libcc/gen/sleep.c
index 02ee2b46..ca9a3fa9 100644
--- a/lang/cem/libcc/gen/sleep.c
+++ b/lang/cem/libcc/gen/sleep.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <signal.h>
 #include <setjmp.h>
 
diff --git a/lang/cem/libcc/gen/strcat.c b/lang/cem/libcc/gen/strcat.c
index eedce108..f3aa4e5a 100644
--- a/lang/cem/libcc/gen/strcat.c
+++ b/lang/cem/libcc/gen/strcat.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *strcat(s1, s2)
 register char *s1, *s2;
 {
diff --git a/lang/cem/libcc/gen/strchr.c b/lang/cem/libcc/gen/strchr.c
index 9c432e52..f86de261 100644
--- a/lang/cem/libcc/gen/strchr.c
+++ b/lang/cem/libcc/gen/strchr.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *strchr(s, c)
 register char *s, c;
 {
diff --git a/lang/cem/libcc/gen/strcmp.c b/lang/cem/libcc/gen/strcmp.c
index fc24df40..4f2c50fb 100644
--- a/lang/cem/libcc/gen/strcmp.c
+++ b/lang/cem/libcc/gen/strcmp.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 int strcmp(s1, s2)
 register char *s1, *s2;
 {
diff --git a/lang/cem/libcc/gen/strcpy.c b/lang/cem/libcc/gen/strcpy.c
index ba8b7d9b..99762cc9 100644
--- a/lang/cem/libcc/gen/strcpy.c
+++ b/lang/cem/libcc/gen/strcpy.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *strcpy(s1, s2)
 register char *s1, *s2;
 {
diff --git a/lang/cem/libcc/gen/strcspn.c b/lang/cem/libcc/gen/strcspn.c
index 63b21353..ce394a63 100644
--- a/lang/cem/libcc/gen/strcspn.c
+++ b/lang/cem/libcc/gen/strcspn.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 int
 strcspn(string, notin)
 	char *string;
diff --git a/lang/cem/libcc/gen/strlen.c b/lang/cem/libcc/gen/strlen.c
index b453633f..6232d6ca 100644
--- a/lang/cem/libcc/gen/strlen.c
+++ b/lang/cem/libcc/gen/strlen.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 int strlen(s)
 char *s;
 {
diff --git a/lang/cem/libcc/gen/strncat.c b/lang/cem/libcc/gen/strncat.c
index 38e9c3d6..96009bbb 100644
--- a/lang/cem/libcc/gen/strncat.c
+++ b/lang/cem/libcc/gen/strncat.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *strncat(s1, s2, n)
 register char *s1, *s2;
 int n;
diff --git a/lang/cem/libcc/gen/strncmp.c b/lang/cem/libcc/gen/strncmp.c
index 9df8c86f..24e8d6ec 100644
--- a/lang/cem/libcc/gen/strncmp.c
+++ b/lang/cem/libcc/gen/strncmp.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 int
 strncmp(s1, s2, n)
 	register char *s1, *s2;
diff --git a/lang/cem/libcc/gen/strncpy.c b/lang/cem/libcc/gen/strncpy.c
index 59c52bf9..1b2013c8 100644
--- a/lang/cem/libcc/gen/strncpy.c
+++ b/lang/cem/libcc/gen/strncpy.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char
 *strncpy(s1, s2, n)
 register char *s1, *s2;
diff --git a/lang/cem/libcc/gen/strpbrk.c b/lang/cem/libcc/gen/strpbrk.c
index 1d0d1042..f7b8a392 100644
--- a/lang/cem/libcc/gen/strpbrk.c
+++ b/lang/cem/libcc/gen/strpbrk.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *
 strpbrk(string, brk)
 	register char *string, *brk;
diff --git a/lang/cem/libcc/gen/strrchr.c b/lang/cem/libcc/gen/strrchr.c
index 18b80a94..c291da32 100644
--- a/lang/cem/libcc/gen/strrchr.c
+++ b/lang/cem/libcc/gen/strrchr.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 char *strrchr(s, c)
 register char *s, c;
 {
diff --git a/lang/cem/libcc/gen/strspn.c b/lang/cem/libcc/gen/strspn.c
index af68acdc..7a612cf7 100644
--- a/lang/cem/libcc/gen/strspn.c
+++ b/lang/cem/libcc/gen/strspn.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 int
 strspn(string, in)
 	char *string;
diff --git a/lang/cem/libcc/gen/strstr.c b/lang/cem/libcc/gen/strstr.c
index 49e9e062..2fc5380b 100644
--- a/lang/cem/libcc/gen/strstr.c
+++ b/lang/cem/libcc/gen/strstr.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /* find first occurrence of wanted in s */
 char *
 strstr(s, wanted)
diff --git a/lang/cem/libcc/gen/strtok.c b/lang/cem/libcc/gen/strtok.c
index e8eb65f4..6f958e93 100644
--- a/lang/cem/libcc/gen/strtok.c
+++ b/lang/cem/libcc/gen/strtok.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 extern char *strpbrk();
 
 char *
diff --git a/lang/cem/libcc/gen/swab.c b/lang/cem/libcc/gen/swab.c
index 54455ce2..fd3fb1b4 100644
--- a/lang/cem/libcc/gen/swab.c
+++ b/lang/cem/libcc/gen/swab.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 swab(from, to, nbytes)
 	register char *from, *to;
 {
diff --git a/lang/cem/libcc/gen/telldir.c b/lang/cem/libcc/gen/telldir.c
index d3fb4ec4..2621e661 100644
--- a/lang/cem/libcc/gen/telldir.c
+++ b/lang/cem/libcc/gen/telldir.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <sys/types.h>
 #include <sys/dir.h>
 
diff --git a/lang/cem/libcc/gen/ttyname.c b/lang/cem/libcc/gen/ttyname.c
index f23fd81c..4a624ddf 100644
--- a/lang/cem/libcc/gen/ttyname.c
+++ b/lang/cem/libcc/gen/ttyname.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/dir.h>
diff --git a/lang/cem/libcc/gen/ttyslot.c b/lang/cem/libcc/gen/ttyslot.c
index bfa9933c..4a468b75 100644
--- a/lang/cem/libcc/gen/ttyslot.c
+++ b/lang/cem/libcc/gen/ttyslot.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #ifdef __USG
 /*	system V, so no /etc/ttys file. In this case, scan the
 	/etc/utmp file
diff --git a/lang/cem/libcc/gen/tzset.c b/lang/cem/libcc/gen/tzset.c
index 6121241f..ade2fedb 100644
--- a/lang/cem/libcc/gen/tzset.c
+++ b/lang/cem/libcc/gen/tzset.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #ifdef __BSD4_2
 struct timeval {
 	long tv_sec, tv_usec;
diff --git a/lang/cem/libcc/mon/cleanup.c b/lang/cem/libcc/mon/cleanup.c
index 88849f14..207efc9f 100644
--- a/lang/cem/libcc/mon/cleanup.c
+++ b/lang/cem/libcc/mon/cleanup.c
@@ -1 +1,2 @@
+/* $Header$ */
 _cleanup(){}
diff --git a/lang/cem/libcc/mon/exit.c b/lang/cem/libcc/mon/exit.c
index f57bd3a0..c51bfb5e 100644
--- a/lang/cem/libcc/mon/exit.c
+++ b/lang/cem/libcc/mon/exit.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
  *
diff --git a/lang/cem/libcc/mon/gtty.c b/lang/cem/libcc/mon/gtty.c
index cf2c769b..099c95ff 100644
--- a/lang/cem/libcc/mon/gtty.c
+++ b/lang/cem/libcc/mon/gtty.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <sgtty.h>
 int gtty(fildes,argp) int fildes ; struct sgttyb *argp ; {
 	return ioctl(fildes,TIOCGETP,argp) ;
diff --git a/lang/cem/libcc/mon/signal.c b/lang/cem/libcc/mon/signal.c
index 92884796..11d6442e 100644
--- a/lang/cem/libcc/mon/signal.c
+++ b/lang/cem/libcc/mon/signal.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <signal.h>
 
 typedef int (*callvec)() ;
diff --git a/lang/cem/libcc/mon/stty.c b/lang/cem/libcc/mon/stty.c
index 778b9aec..749486cf 100644
--- a/lang/cem/libcc/mon/stty.c
+++ b/lang/cem/libcc/mon/stty.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <sgtty.h>
 int stty(fildes,argp) int fildes ; struct sgttyb *argp ; {
 	return ioctl(fildes,TIOCSETP,argp) ;
diff --git a/lang/cem/libcc/mon/tell.c b/lang/cem/libcc/mon/tell.c
index 12e6bf23..edefedb6 100644
--- a/lang/cem/libcc/mon/tell.c
+++ b/lang/cem/libcc/mon/tell.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * return offset in file.
  */
diff --git a/lang/cem/libcc/mon/time.c b/lang/cem/libcc/mon/time.c
index 29979d0c..9051af12 100644
--- a/lang/cem/libcc/mon/time.c
+++ b/lang/cem/libcc/mon/time.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <sys/types.h>
 #include <sys/timeb.h>
 time_t time(timpt) time_t *timpt ; {
diff --git a/lang/cem/libcc/stdio/clearerr.c b/lang/cem/libcc/stdio/clearerr.c
index 592e61ad..9324ed57 100644
--- a/lang/cem/libcc/stdio/clearerr.c
+++ b/lang/cem/libcc/stdio/clearerr.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 clearerr(iop)
diff --git a/lang/cem/libcc/stdio/data.c b/lang/cem/libcc/stdio/data.c
index 29e13360..1e182284 100644
--- a/lang/cem/libcc/stdio/data.c
+++ b/lang/cem/libcc/stdio/data.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 unsigned char  _sobuf[BUFSIZ];
diff --git a/lang/cem/libcc/stdio/doprnt.c b/lang/cem/libcc/stdio/doprnt.c
index d44a491f..99304b24 100644
--- a/lang/cem/libcc/stdio/doprnt.c
+++ b/lang/cem/libcc/stdio/doprnt.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 #ifndef NOFLOAT
diff --git a/lang/cem/libcc/stdio/doscan.c b/lang/cem/libcc/stdio/doscan.c
index 77627013..8a722379 100644
--- a/lang/cem/libcc/stdio/doscan.c
+++ b/lang/cem/libcc/stdio/doscan.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 #include <ctype.h>
 
diff --git a/lang/cem/libcc/stdio/fclose.c b/lang/cem/libcc/stdio/fclose.c
index 577b969b..6e3f2549 100644
--- a/lang/cem/libcc/stdio/fclose.c
+++ b/lang/cem/libcc/stdio/fclose.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 fclose(fp)
diff --git a/lang/cem/libcc/stdio/fdopen.c b/lang/cem/libcc/stdio/fdopen.c
index 0574782b..b8c5f124 100644
--- a/lang/cem/libcc/stdio/fdopen.c
+++ b/lang/cem/libcc/stdio/fdopen.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 FILE *fdopen(fd,mode)
diff --git a/lang/cem/libcc/stdio/fflush.c b/lang/cem/libcc/stdio/fflush.c
index 103ae85e..d2438d95 100644
--- a/lang/cem/libcc/stdio/fflush.c
+++ b/lang/cem/libcc/stdio/fflush.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 
diff --git a/lang/cem/libcc/stdio/fgetc.c b/lang/cem/libcc/stdio/fgetc.c
index 88bb19cc..309fcf97 100644
--- a/lang/cem/libcc/stdio/fgetc.c
+++ b/lang/cem/libcc/stdio/fgetc.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 fgetc(f)
diff --git a/lang/cem/libcc/stdio/fgets.c b/lang/cem/libcc/stdio/fgets.c
index c993b86d..13d5e6d6 100644
--- a/lang/cem/libcc/stdio/fgets.c
+++ b/lang/cem/libcc/stdio/fgets.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 char *fgets(str, n, file)
diff --git a/lang/cem/libcc/stdio/fillbuf.c b/lang/cem/libcc/stdio/fillbuf.c
index 4e9d3e37..9f2cd9ec 100644
--- a/lang/cem/libcc/stdio/fillbuf.c
+++ b/lang/cem/libcc/stdio/fillbuf.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 _fillbuf(iop)
diff --git a/lang/cem/libcc/stdio/fltpr.c b/lang/cem/libcc/stdio/fltpr.c
index 5af631ef..bef74691 100644
--- a/lang/cem/libcc/stdio/fltpr.c
+++ b/lang/cem/libcc/stdio/fltpr.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #ifndef NOFLOAT
 extern char     *fcvt();
 extern char     *ecvt();
diff --git a/lang/cem/libcc/stdio/flushbuf.c b/lang/cem/libcc/stdio/flushbuf.c
index 90bf01ff..a460a37a 100644
--- a/lang/cem/libcc/stdio/flushbuf.c
+++ b/lang/cem/libcc/stdio/flushbuf.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 int
diff --git a/lang/cem/libcc/stdio/fopen.c b/lang/cem/libcc/stdio/fopen.c
index 3c6296cc..5ab62ffa 100644
--- a/lang/cem/libcc/stdio/fopen.c
+++ b/lang/cem/libcc/stdio/fopen.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 #define  PMODE    0666
diff --git a/lang/cem/libcc/stdio/fprintf.c b/lang/cem/libcc/stdio/fprintf.c
index 8e036725..14997d73 100644
--- a/lang/cem/libcc/stdio/fprintf.c
+++ b/lang/cem/libcc/stdio/fprintf.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 fprintf (file, fmt, args)
diff --git a/lang/cem/libcc/stdio/fputc.c b/lang/cem/libcc/stdio/fputc.c
index de45d918..4399627b 100644
--- a/lang/cem/libcc/stdio/fputc.c
+++ b/lang/cem/libcc/stdio/fputc.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 fputc(c, iop)
diff --git a/lang/cem/libcc/stdio/fputs.c b/lang/cem/libcc/stdio/fputs.c
index 7cb723e9..26766a4c 100644
--- a/lang/cem/libcc/stdio/fputs.c
+++ b/lang/cem/libcc/stdio/fputs.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 fputs(s,file)
diff --git a/lang/cem/libcc/stdio/fread.c b/lang/cem/libcc/stdio/fread.c
index ea885a4c..bf2d4081 100644
--- a/lang/cem/libcc/stdio/fread.c
+++ b/lang/cem/libcc/stdio/fread.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 fread(ptr, size, count, file)
diff --git a/lang/cem/libcc/stdio/freopen.c b/lang/cem/libcc/stdio/freopen.c
index b33659e3..85d22152 100644
--- a/lang/cem/libcc/stdio/freopen.c
+++ b/lang/cem/libcc/stdio/freopen.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 #define  PMODE    0666
diff --git a/lang/cem/libcc/stdio/fscanf.c b/lang/cem/libcc/stdio/fscanf.c
index f92aa285..231221bd 100644
--- a/lang/cem/libcc/stdio/fscanf.c
+++ b/lang/cem/libcc/stdio/fscanf.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 int fscanf (fp, format, args)
diff --git a/lang/cem/libcc/stdio/fseek.c b/lang/cem/libcc/stdio/fseek.c
index c646d7b2..62eaf6d5 100644
--- a/lang/cem/libcc/stdio/fseek.c
+++ b/lang/cem/libcc/stdio/fseek.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 
diff --git a/lang/cem/libcc/stdio/ftell.c b/lang/cem/libcc/stdio/ftell.c
index 6302977d..98ce95c4 100644
--- a/lang/cem/libcc/stdio/ftell.c
+++ b/lang/cem/libcc/stdio/ftell.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 
diff --git a/lang/cem/libcc/stdio/fwrite.c b/lang/cem/libcc/stdio/fwrite.c
index 0f6b51a5..58f86e70 100644
--- a/lang/cem/libcc/stdio/fwrite.c
+++ b/lang/cem/libcc/stdio/fwrite.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 fwrite(ptr, size, count, file)
diff --git a/lang/cem/libcc/stdio/getchar.c b/lang/cem/libcc/stdio/getchar.c
index ba4a8580..d008584d 100644
--- a/lang/cem/libcc/stdio/getchar.c
+++ b/lang/cem/libcc/stdio/getchar.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 #undef getchar
diff --git a/lang/cem/libcc/stdio/getgrent.c b/lang/cem/libcc/stdio/getgrent.c
index f58082ef..cea6baa1 100644
--- a/lang/cem/libcc/stdio/getgrent.c
+++ b/lang/cem/libcc/stdio/getgrent.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * get entry from group file
  * 
diff --git a/lang/cem/libcc/stdio/getpass.c b/lang/cem/libcc/stdio/getpass.c
index 53a6a664..cc90597f 100644
--- a/lang/cem/libcc/stdio/getpass.c
+++ b/lang/cem/libcc/stdio/getpass.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <signal.h>
 #include <sgtty.h>
 
diff --git a/lang/cem/libcc/stdio/getpw.c b/lang/cem/libcc/stdio/getpw.c
index 4dd3eb19..d78d9c8f 100644
--- a/lang/cem/libcc/stdio/getpw.c
+++ b/lang/cem/libcc/stdio/getpw.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include	<stdio.h>
 
 getpw(uid, buf)
diff --git a/lang/cem/libcc/stdio/getpwent.c b/lang/cem/libcc/stdio/getpwent.c
index 376d04be..50ecbbe3 100644
--- a/lang/cem/libcc/stdio/getpwent.c
+++ b/lang/cem/libcc/stdio/getpwent.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * get entry from password file
  *
diff --git a/lang/cem/libcc/stdio/gets.c b/lang/cem/libcc/stdio/gets.c
index 5798e6a3..a6109e14 100644
--- a/lang/cem/libcc/stdio/gets.c
+++ b/lang/cem/libcc/stdio/gets.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 char *gets(str)
diff --git a/lang/cem/libcc/stdio/getw.c b/lang/cem/libcc/stdio/getw.c
index 1ab33fb6..296c08f5 100644
--- a/lang/cem/libcc/stdio/getw.c
+++ b/lang/cem/libcc/stdio/getw.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 int getw(iop)
diff --git a/lang/cem/libcc/stdio/popen.c b/lang/cem/libcc/stdio/popen.c
index e9538900..64f96016 100644
--- a/lang/cem/libcc/stdio/popen.c
+++ b/lang/cem/libcc/stdio/popen.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 #include <signal.h>
 
diff --git a/lang/cem/libcc/stdio/printf.c b/lang/cem/libcc/stdio/printf.c
index cc3f0d9a..a2b73ed5 100644
--- a/lang/cem/libcc/stdio/printf.c
+++ b/lang/cem/libcc/stdio/printf.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 printf (fmt, args)
diff --git a/lang/cem/libcc/stdio/putchar.c b/lang/cem/libcc/stdio/putchar.c
index ebf2d483..4bdc00b8 100644
--- a/lang/cem/libcc/stdio/putchar.c
+++ b/lang/cem/libcc/stdio/putchar.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 #undef putchar
diff --git a/lang/cem/libcc/stdio/puts.c b/lang/cem/libcc/stdio/puts.c
index 07fb782c..357f6d07 100644
--- a/lang/cem/libcc/stdio/puts.c
+++ b/lang/cem/libcc/stdio/puts.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 puts(s)
diff --git a/lang/cem/libcc/stdio/putw.c b/lang/cem/libcc/stdio/putw.c
index 2343c1e7..0f1709ae 100644
--- a/lang/cem/libcc/stdio/putw.c
+++ b/lang/cem/libcc/stdio/putw.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 int
diff --git a/lang/cem/libcc/stdio/rewind.c b/lang/cem/libcc/stdio/rewind.c
index dd9d8657..65aba204 100644
--- a/lang/cem/libcc/stdio/rewind.c
+++ b/lang/cem/libcc/stdio/rewind.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 rewind(iop)
diff --git a/lang/cem/libcc/stdio/scanf.c b/lang/cem/libcc/stdio/scanf.c
index fcdc210c..07491570 100644
--- a/lang/cem/libcc/stdio/scanf.c
+++ b/lang/cem/libcc/stdio/scanf.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 int scanf (format, args)
diff --git a/lang/cem/libcc/stdio/setbuf.c b/lang/cem/libcc/stdio/setbuf.c
index 2b857dd5..83cefc5f 100644
--- a/lang/cem/libcc/stdio/setbuf.c
+++ b/lang/cem/libcc/stdio/setbuf.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include	<stdio.h>
 
 
diff --git a/lang/cem/libcc/stdio/sprintf.c b/lang/cem/libcc/stdio/sprintf.c
index a3c52bc5..3c7ca4f4 100644
--- a/lang/cem/libcc/stdio/sprintf.c
+++ b/lang/cem/libcc/stdio/sprintf.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 char *sprintf(buf,format,args)
diff --git a/lang/cem/libcc/stdio/sscanf.c b/lang/cem/libcc/stdio/sscanf.c
index 3328b49e..29560569 100644
--- a/lang/cem/libcc/stdio/sscanf.c
+++ b/lang/cem/libcc/stdio/sscanf.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 int sscanf (string, format, args)
diff --git a/lang/cem/libcc/stdio/system.c b/lang/cem/libcc/stdio/system.c
index 6ffae3dc..b006c3ca 100644
--- a/lang/cem/libcc/stdio/system.c
+++ b/lang/cem/libcc/stdio/system.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <signal.h>
 
 system(str)
diff --git a/lang/cem/libcc/stdio/timezone.c b/lang/cem/libcc/stdio/timezone.c
index 31da9dfe..b57813e9 100644
--- a/lang/cem/libcc/stdio/timezone.c
+++ b/lang/cem/libcc/stdio/timezone.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 static struct zonetable {
 	int	offset;
 	char	*stdzone;
diff --git a/lang/cem/libcc/stdio/ungetc.c b/lang/cem/libcc/stdio/ungetc.c
index ef191969..7ddde0a4 100644
--- a/lang/cem/libcc/stdio/ungetc.c
+++ b/lang/cem/libcc/stdio/ungetc.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 #include <stdio.h>
 
 ungetc(ch, iop)