diff --git a/calma/CalmaWrite.c b/calma/CalmaWrite.c
index 7853148e..b90c6d6f 100644
--- a/calma/CalmaWrite.c
+++ b/calma/CalmaWrite.c
@@ -24,6 +24,7 @@ static char rcsid[] __attribute__ ((unused)) ="$Header: /usr/cvsroot/magic-8.0/c
 #include <stdint.h>
 #include <stdlib.h>	/* for random() */
 #include <string.h>
+#include <strings.h>
 #include <ctype.h>
 #include <sys/types.h>
 #include <arpa/inet.h>	/* for htons() */
diff --git a/calma/CalmaWriteZ.c b/calma/CalmaWriteZ.c
index d5687189..cb6a01a2 100644
--- a/calma/CalmaWriteZ.c
+++ b/calma/CalmaWriteZ.c
@@ -34,6 +34,7 @@ static char rcsid[] __attribute__ ((unused)) ="$Header: /usr/cvsroot/magic-8.0/c
 #include <stdint.h>
 #include <stdlib.h>	/* for random() */
 #include <string.h>
+#include <strings.h>
 #include <ctype.h>
 #include <sys/types.h>
 #include <arpa/inet.h>	/* for htons() */
diff --git a/commands/CmdCD.c b/commands/CmdCD.c
index edd80361..a1f78aec 100644
--- a/commands/CmdCD.c
+++ b/commands/CmdCD.c
@@ -23,6 +23,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 
 #include "tcltk/tclmagic.h"
 #include "utils/magic.h"
diff --git a/commands/CmdRS.c b/commands/CmdRS.c
index d2a4c6a2..41a66744 100644
--- a/commands/CmdRS.c
+++ b/commands/CmdRS.c
@@ -23,6 +23,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 #include <ctype.h>
 #include <time.h>
 
diff --git a/database/DBlabel.c b/database/DBlabel.c
index eb8001fc..388c9da6 100644
--- a/database/DBlabel.c
+++ b/database/DBlabel.c
@@ -24,6 +24,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 #include <math.h>	/* For sin(), cos(), and round() functions */
 #include <ctype.h>
 
diff --git a/ext2sim/ext2sim.c b/ext2sim/ext2sim.c
index 68248401..1008cfab 100644
--- a/ext2sim/ext2sim.c
+++ b/ext2sim/ext2sim.c
@@ -19,6 +19,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include <stdio.h>
 #include <stdlib.h>	/* for atof() */
 #include <string.h>
+#include <strings.h>
 #include <ctype.h>
 #include <math.h>	/* for sqrt() in bipolar L,W calculation */
 
diff --git a/ext2spice/ext2spice.c b/ext2spice/ext2spice.c
index d9d56954..06d06900 100644
--- a/ext2spice/ext2spice.c
+++ b/ext2spice/ext2spice.c
@@ -20,6 +20,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include <stdint.h>
 #include <stdlib.h>		/* for atof() */
 #include <string.h>
+#include <strings.h>
 #include <ctype.h>
 #include <math.h>		/* for fabs() */
 
diff --git a/extflat/EFbuild.c b/extflat/EFbuild.c
index e1688680..902058d7 100644
--- a/extflat/EFbuild.c
+++ b/extflat/EFbuild.c
@@ -24,6 +24,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header$";
 #include <stdio.h>
 #include <stdlib.h>		/* for atof() */
 #include <string.h>
+#include <strings.h>
 
 #include "utils/magic.h"
 #include "utils/geometry.h"
diff --git a/extract/ExtTech.c b/extract/ExtTech.c
index 36adeaa2..bf5c4756 100644
--- a/extract/ExtTech.c
+++ b/extract/ExtTech.c
@@ -25,6 +25,7 @@ static char sccsid[] = "@(#)ExtTech.c	4.8 MAGIC (Berkeley) 10/26/85";
 #include <stdio.h>
 #include <stdlib.h>		/* for strtod() */
 #include <string.h>
+#include <strings.h>
 #include <math.h>
 #include <ctype.h>		/* for isspace() */
 
diff --git a/lef/lefCmd.c b/lef/lefCmd.c
index 3ae84132..94650f68 100644
--- a/lef/lefCmd.c
+++ b/lef/lefCmd.c
@@ -12,6 +12,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 #include <time.h>
 
 #include "tcltk/tclmagic.h"
diff --git a/lef/lefRead.c b/lef/lefRead.c
index 992c1d1a..de347c11 100644
--- a/lef/lefRead.c
+++ b/lef/lefRead.c
@@ -21,6 +21,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include <stdlib.h>
 #include <ctype.h>
 #include <string.h>
+#include <strings.h>
 #include <errno.h>
 #include <stdarg.h>
 #include <sys/time.h>
diff --git a/netmenu/NMnetlist.c b/netmenu/NMnetlist.c
index 0cd505a5..26072dd0 100644
--- a/netmenu/NMnetlist.c
+++ b/netmenu/NMnetlist.c
@@ -23,6 +23,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 
 #include <stdio.h>
 #include <string.h>
+#include <strings.h>
 
 #include "utils/magic.h"
 #include "utils/utils.h"
diff --git a/resis/ResRex.c b/resis/ResRex.c
index 3c5749eb..83d2f920 100644
--- a/resis/ResRex.c
+++ b/resis/ResRex.c
@@ -6,6 +6,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 #include <ctype.h>
 #include <math.h>
 #include <float.h>
diff --git a/utils/macros.c b/utils/macros.c
index 8f683ac2..4d351dd8 100644
--- a/utils/macros.c
+++ b/utils/macros.c
@@ -22,6 +22,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 
 #include <stdio.h>
 #include <string.h>
+#include <strings.h>
 #include <signal.h>
 #include <ctype.h>
 #ifdef XLIB
diff --git a/utils/main.c b/utils/main.c
index 8865e65b..f1aa9d84 100644
--- a/utils/main.c
+++ b/utils/main.c
@@ -25,6 +25,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 
 #include <sys/types.h>
 #include <sys/times.h>