diff --git a/emtest/select.c b/emtest/select.c
index e6a65cc9..9b2624ab 100644
--- a/emtest/select.c
+++ b/emtest/select.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/emtest/test.h b/emtest/test.h
index 184e0bf5..9f15d82e 100644
--- a/emtest/test.h
+++ b/emtest/test.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/first/em_path.h.src b/first/em_path.h.src
index 029b13bc..d3497568 100644
--- a/first/em_path.h.src
+++ b/first/em_path.h.src
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/first/local.h.src b/first/local.h.src
index 0c5ce9bd..208adaf3 100644
--- a/first/local.h.src
+++ b/first/local.h.src
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/arch.h b/h/arch.h
index 41342d0c..78a0bc3b 100644
--- a/h/arch.h
+++ b/h/arch.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/as_spec.h b/h/as_spec.h
index b6cc75a6..4909cbc0 100644
--- a/h/as_spec.h
+++ b/h/as_spec.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/cg_pattern.h b/h/cg_pattern.h
index 357da8f8..46dac7c2 100644
--- a/h/cg_pattern.h
+++ b/h/cg_pattern.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/em_abs.h b/h/em_abs.h
index 05f90b2b..9855cff5 100644
--- a/h/em_abs.h
+++ b/h/em_abs.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/em_ego.h b/h/em_ego.h
index fb8fb03a..958cbdc7 100644
--- a/h/em_ego.h
+++ b/h/em_ego.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/em_flag.h b/h/em_flag.h
index 55c5d0f7..fb0c9ef9 100644
--- a/h/em_flag.h
+++ b/h/em_flag.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/em_mes.h b/h/em_mes.h
index 320dd28c..9849f601 100644
--- a/h/em_mes.h
+++ b/h/em_mes.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/em_ptyp.h b/h/em_ptyp.h
index 365eafda..5b1cf095 100644
--- a/h/em_ptyp.h
+++ b/h/em_ptyp.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/em_reg.h b/h/em_reg.h
index 711cec5d..fc8034fd 100644
--- a/h/em_reg.h
+++ b/h/em_reg.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/ocm_chan.h b/h/ocm_chan.h
index fddfeec6..18e9a196 100644
--- a/h/ocm_chan.h
+++ b/h/ocm_chan.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/ocm_parco.h b/h/ocm_parco.h
index d31dbcbe..35826d70 100644
--- a/h/ocm_parco.h
+++ b/h/ocm_parco.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/ocm_proc.h b/h/ocm_proc.h
index d3c5ec9c..7ffd41e9 100644
--- a/h/ocm_proc.h
+++ b/h/ocm_proc.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/pc_err.h b/h/pc_err.h
index 9995c245..b3426045 100644
--- a/h/pc_err.h
+++ b/h/pc_err.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/pc_file.h b/h/pc_file.h
index 63e3ad2a..cabc0f12 100644
--- a/h/pc_file.h
+++ b/h/pc_file.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/h/pc_size.h b/h/pc_size.h
index 493fb358..b0eb5f74 100644
--- a/h/pc_size.h
+++ b/h/pc_size.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/include/_tail_cc/ctype.h b/include/_tail_cc/ctype.h
index fdffb70b..bd078e48 100644
--- a/include/_tail_cc/ctype.h
+++ b/include/_tail_cc/ctype.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/include/_tail_cc/setjmp.h b/include/_tail_cc/setjmp.h
index cd6c6ec1..dc108366 100644
--- a/include/_tail_cc/setjmp.h
+++ b/include/_tail_cc/setjmp.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/include/_tail_cc/stdio.h b/include/_tail_cc/stdio.h
index f9a3ef71..337a346f 100644
--- a/include/_tail_cc/stdio.h
+++ b/include/_tail_cc/stdio.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/include/_tail_cc/sys/dir.h b/include/_tail_cc/sys/dir.h
index 27309866..11b21049 100644
--- a/include/_tail_cc/sys/dir.h
+++ b/include/_tail_cc/sys/dir.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/include/_tail_cc/sys/stat.h b/include/_tail_cc/sys/stat.h
index 20b4c8cd..c23daaca 100644
--- a/include/_tail_cc/sys/stat.h
+++ b/include/_tail_cc/sys/stat.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/include/_tail_cc/sys/types.h b/include/_tail_cc/sys/types.h
index 9f040919..c0d2c098 100644
--- a/include/_tail_cc/sys/types.h
+++ b/include/_tail_cc/sys/types.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/include/_tail_mon/errno.h b/include/_tail_mon/errno.h
index de61f527..e84a5ac6 100644
--- a/include/_tail_mon/errno.h
+++ b/include/_tail_mon/errno.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/include/_tail_mon/signal.h b/include/_tail_mon/signal.h
index 426d4e7c..f3c585ec 100644
--- a/include/_tail_mon/signal.h
+++ b/include/_tail_mon/signal.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/include/_tail_mon/sys/timeb.h b/include/_tail_mon/sys/timeb.h
index 7605d7aa..e9a32e2b 100644
--- a/include/_tail_mon/sys/timeb.h
+++ b/include/_tail_mon/sys/timeb.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/include/_tail_mon/sys/types.h b/include/_tail_mon/sys/types.h
index 9f040919..c0d2c098 100644
--- a/include/_tail_mon/sys/types.h
+++ b/include/_tail_mon/sys/types.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/h/em.h b/modules/h/em.h
index 3e1e209a..9e81293e 100644
--- a/modules/h/em.h
+++ b/modules/h/em.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/h/em_code.h b/modules/h/em_code.h
index 9a7454c5..c70ab5ff 100644
--- a/modules/h/em_code.h
+++ b/modules/h/em_code.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/alloc/Malloc.c b/modules/src/alloc/Malloc.c
index 65bf7da6..756c00b6 100644
--- a/modules/src/alloc/Malloc.c
+++ b/modules/src/alloc/Malloc.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/alloc/No_Mem.c b/modules/src/alloc/No_Mem.c
index a7cb29b6..6f765cf5 100644
--- a/modules/src/alloc/No_Mem.c
+++ b/modules/src/alloc/No_Mem.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/alloc/alloc.h b/modules/src/alloc/alloc.h
index 3bf2a0f6..5c301849 100644
--- a/modules/src/alloc/alloc.h
+++ b/modules/src/alloc/alloc.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/alloc/botch.c b/modules/src/alloc/botch.c
index 8a8b9f53..c9ab8271 100644
--- a/modules/src/alloc/botch.c
+++ b/modules/src/alloc/botch.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/alloc/clear.c b/modules/src/alloc/clear.c
index 3781548e..4ebd20e7 100644
--- a/modules/src/alloc/clear.c
+++ b/modules/src/alloc/clear.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/alloc/in_all.h b/modules/src/alloc/in_all.h
index cf7e5e03..9b804e5a 100644
--- a/modules/src/alloc/in_all.h
+++ b/modules/src/alloc/in_all.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/alloc/st_alloc.c b/modules/src/alloc/st_alloc.c
index 4d3eb486..b5d9b3c5 100644
--- a/modules/src/alloc/st_alloc.c
+++ b/modules/src/alloc/st_alloc.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/alloc/std_alloc.c b/modules/src/alloc/std_alloc.c
index 6efe6945..56426f89 100644
--- a/modules/src/alloc/std_alloc.c
+++ b/modules/src/alloc/std_alloc.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/assert/BadAssert.c b/modules/src/assert/BadAssert.c
index 865ed24a..4ef4fba0 100644
--- a/modules/src/assert/BadAssert.c
+++ b/modules/src/assert/BadAssert.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_code/e/C_failed.c b/modules/src/em_code/e/C_failed.c
index f4321469..0f5ddf60 100644
--- a/modules/src/em_code/e/C_failed.c
+++ b/modules/src/em_code/e/C_failed.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_code/e/em.c b/modules/src/em_code/e/em.c
index b678fc78..6d78411d 100644
--- a/modules/src/em_code/e/em.c
+++ b/modules/src/em_code/e/em.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_code/e/em_private.h b/modules/src/em_code/e/em_private.h
index 66f01ccf..df779e39 100644
--- a/modules/src/em_code/e/em_private.h
+++ b/modules/src/em_code/e/em_private.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_code/k/C_failed.c b/modules/src/em_code/k/C_failed.c
index f4321469..0f5ddf60 100644
--- a/modules/src/em_code/k/C_failed.c
+++ b/modules/src/em_code/k/C_failed.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_code/k/em_private.h b/modules/src/em_code/k/em_private.h
index f073fe65..1d7c6a90 100644
--- a/modules/src/em_code/k/em_private.h
+++ b/modules/src/em_code/k/em_private.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_mes/C_ms_com.c b/modules/src/em_mes/C_ms_com.c
index 160403c5..a13c6990 100644
--- a/modules/src/em_mes/C_ms_com.c
+++ b/modules/src/em_mes/C_ms_com.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_mes/C_ms_ego.c b/modules/src/em_mes/C_ms_ego.c
index 7c7d87c9..0acdb088 100644
--- a/modules/src/em_mes/C_ms_ego.c
+++ b/modules/src/em_mes/C_ms_ego.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_mes/C_ms_emx.c b/modules/src/em_mes/C_ms_emx.c
index 3fa44717..a888ff95 100644
--- a/modules/src/em_mes/C_ms_emx.c
+++ b/modules/src/em_mes/C_ms_emx.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_mes/C_ms_err.c b/modules/src/em_mes/C_ms_err.c
index a8c480a8..95a3517d 100644
--- a/modules/src/em_mes/C_ms_err.c
+++ b/modules/src/em_mes/C_ms_err.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_mes/C_ms_flt.c b/modules/src/em_mes/C_ms_flt.c
index 952f31aa..8f849f67 100644
--- a/modules/src/em_mes/C_ms_flt.c
+++ b/modules/src/em_mes/C_ms_flt.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_mes/C_ms_gto.c b/modules/src/em_mes/C_ms_gto.c
index 50b00ef4..583d7311 100644
--- a/modules/src/em_mes/C_ms_gto.c
+++ b/modules/src/em_mes/C_ms_gto.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_mes/C_ms_opt.c b/modules/src/em_mes/C_ms_opt.c
index a3a03281..d70a945d 100644
--- a/modules/src/em_mes/C_ms_opt.c
+++ b/modules/src/em_mes/C_ms_opt.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_mes/C_ms_par.c b/modules/src/em_mes/C_ms_par.c
index 826a9dcc..61b90585 100644
--- a/modules/src/em_mes/C_ms_par.c
+++ b/modules/src/em_mes/C_ms_par.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_mes/C_ms_reg.c b/modules/src/em_mes/C_ms_reg.c
index eeb6e1e1..628e91ab 100644
--- a/modules/src/em_mes/C_ms_reg.c
+++ b/modules/src/em_mes/C_ms_reg.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/em_mes/C_ms_src.c b/modules/src/em_mes/C_ms_src.c
index eb1106fe..61ba3fc2 100644
--- a/modules/src/em_mes/C_ms_src.c
+++ b/modules/src/em_mes/C_ms_src.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/check.c b/modules/src/malloc/check.c
index b8f76ca8..c33836c8 100644
--- a/modules/src/malloc/check.c
+++ b/modules/src/malloc/check.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/check.h b/modules/src/malloc/check.h
index 7a074708..b2880e74 100644
--- a/modules/src/malloc/check.h
+++ b/modules/src/malloc/check.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/getsize.c b/modules/src/malloc/getsize.c
index 098af020..2568d60e 100644
--- a/modules/src/malloc/getsize.c
+++ b/modules/src/malloc/getsize.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/global.c b/modules/src/malloc/global.c
index 367ce580..600fb785 100644
--- a/modules/src/malloc/global.c
+++ b/modules/src/malloc/global.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/impl.h b/modules/src/malloc/impl.h
index 77b5344a..ed2d2766 100644
--- a/modules/src/malloc/impl.h
+++ b/modules/src/malloc/impl.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/log.c b/modules/src/malloc/log.c
index 5851ce0f..3d6bce96 100644
--- a/modules/src/malloc/log.c
+++ b/modules/src/malloc/log.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/log.h b/modules/src/malloc/log.h
index 61269e3e..d1d8929a 100644
--- a/modules/src/malloc/log.h
+++ b/modules/src/malloc/log.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/mal.c b/modules/src/malloc/mal.c
index a07725a6..3b2cb5c4 100644
--- a/modules/src/malloc/mal.c
+++ b/modules/src/malloc/mal.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/param.h b/modules/src/malloc/param.h
index 92457e3e..0fe298a9 100644
--- a/modules/src/malloc/param.h
+++ b/modules/src/malloc/param.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/phys.c b/modules/src/malloc/phys.c
index 2bd82259..f87a2a01 100644
--- a/modules/src/malloc/phys.c
+++ b/modules/src/malloc/phys.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/malloc/phys.h b/modules/src/malloc/phys.h
index 44f6d89a..79bb0952 100644
--- a/modules/src/malloc/phys.h
+++ b/modules/src/malloc/phys.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/byte_order.c b/modules/src/object/byte_order.c
index 5801d53d..16da2c2e 100644
--- a/modules/src/object/byte_order.c
+++ b/modules/src/object/byte_order.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/object.h b/modules/src/object/object.h
index 61cdb9f9..7fdd1d3e 100644
--- a/modules/src/object/object.h
+++ b/modules/src/object/object.h
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/rd.c b/modules/src/object/rd.c
index c195116d..dbc5e14f 100644
--- a/modules/src/object/rd.c
+++ b/modules/src/object/rd.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/rd_arhdr.c b/modules/src/object/rd_arhdr.c
index f78cf8c3..5d2a8dfc 100644
--- a/modules/src/object/rd_arhdr.c
+++ b/modules/src/object/rd_arhdr.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/rd_bytes.c b/modules/src/object/rd_bytes.c
index c0109d4c..9964e0ac 100644
--- a/modules/src/object/rd_bytes.c
+++ b/modules/src/object/rd_bytes.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/rd_int2.c b/modules/src/object/rd_int2.c
index 534d3edb..a3078b69 100644
--- a/modules/src/object/rd_int2.c
+++ b/modules/src/object/rd_int2.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/rd_long.c b/modules/src/object/rd_long.c
index 36e424a4..e2caa990 100644
--- a/modules/src/object/rd_long.c
+++ b/modules/src/object/rd_long.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/rd_ranlib.c b/modules/src/object/rd_ranlib.c
index 0a36c75b..39b3f084 100644
--- a/modules/src/object/rd_ranlib.c
+++ b/modules/src/object/rd_ranlib.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/rd_unsig2.c b/modules/src/object/rd_unsig2.c
index 1de036eb..13a816f0 100644
--- a/modules/src/object/rd_unsig2.c
+++ b/modules/src/object/rd_unsig2.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/wr.c b/modules/src/object/wr.c
index 2b57e494..c7edab71 100644
--- a/modules/src/object/wr.c
+++ b/modules/src/object/wr.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/wr_arhdr.c b/modules/src/object/wr_arhdr.c
index b0e2a369..95a85b09 100644
--- a/modules/src/object/wr_arhdr.c
+++ b/modules/src/object/wr_arhdr.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/wr_bytes.c b/modules/src/object/wr_bytes.c
index fa5e2f81..36629da8 100644
--- a/modules/src/object/wr_bytes.c
+++ b/modules/src/object/wr_bytes.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/wr_int2.c b/modules/src/object/wr_int2.c
index 741bacbc..39966b18 100644
--- a/modules/src/object/wr_int2.c
+++ b/modules/src/object/wr_int2.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/wr_long.c b/modules/src/object/wr_long.c
index ebb532fc..c5df7d8f 100644
--- a/modules/src/object/wr_long.c
+++ b/modules/src/object/wr_long.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/wr_putc.c b/modules/src/object/wr_putc.c
index 73f87bdb..3da22a26 100644
--- a/modules/src/object/wr_putc.c
+++ b/modules/src/object/wr_putc.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/object/wr_ranlib.c b/modules/src/object/wr_ranlib.c
index 5f0bd223..a0b4be36 100644
--- a/modules/src/object/wr_ranlib.c
+++ b/modules/src/object/wr_ranlib.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/read_em/mkcalls.c b/modules/src/read_em/mkcalls.c
index bc9be5cd..97ac52d8 100644
--- a/modules/src/read_em/mkcalls.c
+++ b/modules/src/read_em/mkcalls.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/read_em/read_em.c b/modules/src/read_em/read_em.c
index 1eedd463..f89f0a11 100644
--- a/modules/src/read_em/read_em.c
+++ b/modules/src/read_em/read_em.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/read_em/reade.c b/modules/src/read_em/reade.c
index 6438371d..890c6177 100644
--- a/modules/src/read_em/reade.c
+++ b/modules/src/read_em/reade.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/read_em/readk.c b/modules/src/read_em/readk.c
index f6c44db3..a6c9585b 100644
--- a/modules/src/read_em/readk.c
+++ b/modules/src/read_em/readk.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/bts2str.c b/modules/src/string/bts2str.c
index ca5b038f..50426d85 100644
--- a/modules/src/string/bts2str.c
+++ b/modules/src/string/bts2str.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/btscat.c b/modules/src/string/btscat.c
index 99bf7347..eaa2df65 100644
--- a/modules/src/string/btscat.c
+++ b/modules/src/string/btscat.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/btscmp.c b/modules/src/string/btscmp.c
index 25b5f994..90b28ad8 100644
--- a/modules/src/string/btscmp.c
+++ b/modules/src/string/btscmp.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/btscpy.c b/modules/src/string/btscpy.c
index 5440843b..dff4b8f8 100644
--- a/modules/src/string/btscpy.c
+++ b/modules/src/string/btscpy.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/btszero.c b/modules/src/string/btszero.c
index 9184ec05..e36074a9 100644
--- a/modules/src/string/btszero.c
+++ b/modules/src/string/btszero.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/long2str.c b/modules/src/string/long2str.c
index ead4e28f..d09e6542 100644
--- a/modules/src/string/long2str.c
+++ b/modules/src/string/long2str.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/str2bts.c b/modules/src/string/str2bts.c
index 583b5c44..56618311 100644
--- a/modules/src/string/str2bts.c
+++ b/modules/src/string/str2bts.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/str2long.c b/modules/src/string/str2long.c
index 4883c693..208d52c0 100644
--- a/modules/src/string/str2long.c
+++ b/modules/src/string/str2long.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/strcat.c b/modules/src/string/strcat.c
index 8b8776ee..f3f84fdc 100644
--- a/modules/src/string/strcat.c
+++ b/modules/src/string/strcat.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/strcmp.c b/modules/src/string/strcmp.c
index 0796c1c2..facc6616 100644
--- a/modules/src/string/strcmp.c
+++ b/modules/src/string/strcmp.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/strcpy.c b/modules/src/string/strcpy.c
index 93415932..83744b98 100644
--- a/modules/src/string/strcpy.c
+++ b/modules/src/string/strcpy.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/strindex.c b/modules/src/string/strindex.c
index 0d7bdf49..0da1f791 100644
--- a/modules/src/string/strindex.c
+++ b/modules/src/string/strindex.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/strlen.c b/modules/src/string/strlen.c
index 3b8d36e6..b6e4b837 100644
--- a/modules/src/string/strlen.c
+++ b/modules/src/string/strlen.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/strncat.c b/modules/src/string/strncat.c
index fb00dd86..25375ed7 100644
--- a/modules/src/string/strncat.c
+++ b/modules/src/string/strncat.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/strncmp.c b/modules/src/string/strncmp.c
index c9147dcd..bfa77e88 100644
--- a/modules/src/string/strncmp.c
+++ b/modules/src/string/strncmp.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/strncpy.c b/modules/src/string/strncpy.c
index cdfab741..ddd4e506 100644
--- a/modules/src/string/strncpy.c
+++ b/modules/src/string/strncpy.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/strrindex.c b/modules/src/string/strrindex.c
index f74c653f..a10f4f76 100644
--- a/modules/src/string/strrindex.c
+++ b/modules/src/string/strrindex.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
diff --git a/modules/src/string/strzero.c b/modules/src/string/strzero.c
index 4f56d38f..a9bbed1a 100644
--- a/modules/src/string/strzero.c
+++ b/modules/src/string/strzero.c
@@ -1,3 +1,4 @@
+/* $Header$ */
 /*
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".