diff --git a/src/gcarray.c b/src/gcarray.c
index 4011ffc..eaefdcb 100644
--- a/src/gcarray.c
+++ b/src/gcarray.c
@@ -62,6 +62,9 @@ static char *id = "$Id: gcarray.c,v 1.3 1999/05/31 23:35:30 sybalsky Exp $ Copyr
 #include "debug.h"
 #include "lispmap.h"
 #include <stdio.h>
+#if defined(MACOSX) || defined(FREEBSD)
+#include <string.h>
+#endif
 
 /*** not currently used -FS
         #define min(a,b)		((a > b)?b:a)
diff --git a/src/initkbd.c b/src/initkbd.c
index cef75c3..a0f6f18 100644
--- a/src/initkbd.c
+++ b/src/initkbd.c
@@ -18,6 +18,9 @@ static char *id = "$Id: initkbd.c,v 1.2 1999/01/03 02:07:09 sybalsky Exp $ Copyr
 
 #include <stdio.h>
 #include <sys/types.h>
+#if defined(MACOSX) || defined(FREEBSD)
+#include <string.h>
+#endif
 #ifndef DOS
 #include <sys/file.h>
 #endif /* DOS */
diff --git a/src/uraid.c b/src/uraid.c
index 7aeca53..06479e7 100644
--- a/src/uraid.c
+++ b/src/uraid.c
@@ -27,6 +27,7 @@ static char *id = "@(#) uraid.c 1.52 4/23/92            (Venue & Fuji Xerox)";
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #ifdef ISC
 #include <sys/bsdtypes.h>
@@ -68,7 +69,7 @@ extern int Win_security_p;
 #ifdef OS5
 #include <stropts.h>
 #endif /* OS5 */
-#ifdef FREEBSD
+#if defined(FREEBSD) || defined(MACOSX)
 /* for memset */
 #include <string.h>
 #endif
diff --git a/src/uutils.c b/src/uutils.c
index 60dd3bc..7894075 100644
--- a/src/uutils.c
+++ b/src/uutils.c
@@ -34,12 +34,15 @@ static char *id = "$Id: uutils.c,v 1.3 1999/05/31 23:35:47 sybalsky Exp $ Copyri
 #include <sys/time.h>
 #endif
 #ifndef SYSVONLY
-#if defined(DOS) || defined(MACOSX) || defined(FREEBSD)
+#if defined(DOS)
 #include <string.h>
 #else
 #include <strings.h>
 #endif /* DOS */
 #endif /* SYSVONLY */
+#if defined(MACOSX) || defined(FREEBSD) /* we compile these with SYSVONLY but... */
+#include <string.h>
+#endif
 
 #include <stdio.h>
 #include "lispemul.h"