diff --git a/regress/include/bootblock/bootblock_test.c b/regress/include/bootblock/bootblock_test.c
index b791607b68a3..5135b094aeb0 100644
--- a/regress/include/bootblock/bootblock_test.c
+++ b/regress/include/bootblock/bootblock_test.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: bootblock_test.c,v 1.1 2004/03/23 00:00:49 lukem Exp $	*/
+/*	$NetBSD: bootblock_test.c,v 1.2 2006/05/10 19:07:22 mrg Exp $	*/
 
 /*-
  * Copyright (c) 2004 The NetBSD Foundation, Inc.
@@ -39,6 +39,7 @@
 #include <assert.h>
 #include <stddef.h>
 #include <unistd.h>
+#include <stdlib.h>
 
 int
 main(int argc, char *argv[])
diff --git a/regress/lib/libc/basename/test.c b/regress/lib/libc/basename/test.c
index a42987b23ac1..0cf1207c9286 100644
--- a/regress/lib/libc/basename/test.c
+++ b/regress/lib/libc/basename/test.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: test.c,v 1.2 2003/07/26 19:38:45 salo Exp $	*/
+/*	$NetBSD: test.c,v 1.3 2006/05/10 19:07:22 mrg Exp $	*/
 
 /*
  * Regression test for basename(3).
@@ -9,6 +9,7 @@
 
 #include <assert.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <libgen.h>
 
diff --git a/regress/lib/libc/convfp/convfp.c b/regress/lib/libc/convfp/convfp.c
index 361577d4cd2a..514ed208190d 100644
--- a/regress/lib/libc/convfp/convfp.c
+++ b/regress/lib/libc/convfp/convfp.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: convfp.c,v 1.4 2004/05/01 18:00:19 martin Exp $	*/
+/*	$NetBSD: convfp.c,v 1.5 2006/05/10 19:07:22 mrg Exp $	*/
 
 /*-
  * Copyright (c) 2003 The NetBSD Foundation, Inc.
@@ -35,6 +35,7 @@
 
 #include <limits.h>
 #include <stdio.h>
+#include <stdlib.h>
 
 /*
  * This value is representable as an unsigned int, but not as an int.
diff --git a/regress/lib/libc/dirname/test.c b/regress/lib/libc/dirname/test.c
index f737d247e032..200b3929bae5 100644
--- a/regress/lib/libc/dirname/test.c
+++ b/regress/lib/libc/dirname/test.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: test.c,v 1.4 2003/07/26 19:38:46 salo Exp $	*/
+/*	$NetBSD: test.c,v 1.5 2006/05/10 19:07:22 mrg Exp $	*/
 
 /*
  * Regression test for dirname(3).
@@ -11,6 +11,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <libgen.h>
+#include <stdlib.h>
 
 struct {
 	const char *input;
diff --git a/regress/lib/libc/ieeefp/except/except.c b/regress/lib/libc/ieeefp/except/except.c
index de041c4007e6..c166ae9d29dc 100644
--- a/regress/lib/libc/ieeefp/except/except.c
+++ b/regress/lib/libc/ieeefp/except/except.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: except.c,v 1.9 2004/03/25 15:12:42 drochner Exp $	*/
+/*	$NetBSD: except.c,v 1.10 2006/05/10 19:07:22 mrg Exp $	*/
 
 /*-
  * Copyright (c) 1995 The NetBSD Foundation, Inc.
@@ -39,6 +39,7 @@
 #include <ieeefp.h>
 #include <float.h>
 #include <setjmp.h>
+#include <stdlib.h>
 
 void sigfpe(int, siginfo_t *, void *);
 volatile sig_atomic_t signal_caught;
diff --git a/regress/lib/libc/ldexp/ldexp.c b/regress/lib/libc/ldexp/ldexp.c
index 107094c3116b..d6cc49900689 100644
--- a/regress/lib/libc/ldexp/ldexp.c
+++ b/regress/lib/libc/ldexp/ldexp.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: ldexp.c,v 1.2 2002/02/21 07:38:17 itojun Exp $	*/
+/*	$NetBSD: ldexp.c,v 1.3 2006/05/10 19:07:22 mrg Exp $	*/
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -35,6 +35,7 @@
 
 #include <math.h>
 #include <stdio.h>
+#include <stdlib.h>
 
 int
 main()
diff --git a/regress/lib/libc/locale/ctype1/ctype1.c b/regress/lib/libc/locale/ctype1/ctype1.c
index 8f19a51ff71a..fda67aec91f1 100644
--- a/regress/lib/libc/locale/ctype1/ctype1.c
+++ b/regress/lib/libc/locale/ctype1/ctype1.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: ctype1.c,v 1.4 2004/06/21 21:20:05 itojun Exp $	*/
+/*	$NetBSD: ctype1.c,v 1.5 2006/05/10 19:07:22 mrg Exp $	*/
 
 /*-
  * Copyright (c)2003 Citrus Project,
@@ -31,6 +31,7 @@
 #include <err.h>
 #include <locale.h>
 #include <wchar.h>
+#include <string.h>
 
 int
 main(int ac, char **av)
diff --git a/regress/lib/libc/nsdispatch/recurse/recurse.c b/regress/lib/libc/nsdispatch/recurse/recurse.c
index 01c5f95ab840..1bf25b226feb 100644
--- a/regress/lib/libc/nsdispatch/recurse/recurse.c
+++ b/regress/lib/libc/nsdispatch/recurse/recurse.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: recurse.c,v 1.2 2004/08/02 00:17:21 thorpej Exp $	*/
+/*	$NetBSD: recurse.c,v 1.3 2006/05/10 19:07:22 mrg Exp $	*/
 
 /*
  * Written by Jason R. Thorpe, August 1, 2004.
@@ -12,6 +12,7 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <pthread.h>
+#include <stdio.h>
 
 static const ns_src testsrc[] = {
 	{ "test",	NS_SUCCESS },
diff --git a/regress/lib/libc/randomid/idtest.c b/regress/lib/libc/randomid/idtest.c
index a460c03beb47..0882eeb76b7e 100644
--- a/regress/lib/libc/randomid/idtest.c
+++ b/regress/lib/libc/randomid/idtest.c
@@ -1,4 +1,4 @@
-/* $NetBSD: idtest.c,v 1.4 2003/12/10 05:22:18 itojun Exp $ */
+/* $NetBSD: idtest.c,v 1.5 2006/05/10 19:07:22 mrg Exp $ */
 
 /* If defined, abort at first short period and only test REGRESS times. */
 #define	REGRESS		10000000		/* should be enough... */
@@ -10,6 +10,7 @@
 #include <inttypes.h>
 #include <stdio.h>
 #include <string.h>
+#include <stdlib.h>
 
 #define	PERIOD		30000
 
diff --git a/regress/lib/libc/rpc/xdr/xdrtest.c b/regress/lib/libc/rpc/xdr/xdrtest.c
index b97190ba017f..fb7288dfaa60 100644
--- a/regress/lib/libc/rpc/xdr/xdrtest.c
+++ b/regress/lib/libc/rpc/xdr/xdrtest.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: xdrtest.c,v 1.4 2002/03/09 01:34:18 pk Exp $	*/
+/*	$NetBSD: xdrtest.c,v 1.5 2006/05/10 19:07:22 mrg Exp $	*/
 
 /*-
  * Copyright (c) 2001 Ben Harris
@@ -32,6 +32,7 @@
 
 #include <rpc/types.h>
 #include <rpc/xdr.h>
+#include <stdlib.h>
 
 #include "testbits.h"
 
diff --git a/regress/lib/libc/siginfo/sigalrm/sigalrm.c b/regress/lib/libc/siginfo/sigalrm/sigalrm.c
index 68fd88e282c7..3752865bf59b 100644
--- a/regress/lib/libc/siginfo/sigalrm/sigalrm.c
+++ b/regress/lib/libc/siginfo/sigalrm/sigalrm.c
@@ -1,10 +1,12 @@
-/* $NetBSD: sigalrm.c,v 1.3 2003/11/13 06:48:31 simonb Exp $ */
+/* $NetBSD: sigalrm.c,v 1.4 2006/05/10 19:07:22 mrg Exp $ */
+
+#include <sys/time.h>
+#include <sys/ucontext.h>
 
 #include <assert.h>
 #include <signal.h>
 #include <stdio.h>
-#include <sys/time.h>
-#include <sys/ucontext.h>
+#include <stdlib.h>
 
 void
 sigalrm(int signo, siginfo_t *info, void *ptr)
diff --git a/regress/lib/libc/siginfo/sigchld/sigchld.c b/regress/lib/libc/siginfo/sigchld/sigchld.c
index 17c19e38f01a..70acb148384d 100644
--- a/regress/lib/libc/siginfo/sigchld/sigchld.c
+++ b/regress/lib/libc/siginfo/sigchld/sigchld.c
@@ -1,11 +1,13 @@
-/* $NetBSD: sigchld.c,v 1.5 2003/11/27 01:03:13 simonb Exp $ */
+/* $NetBSD: sigchld.c,v 1.6 2006/05/10 19:07:22 mrg Exp $ */
+
+#include <sys/ucontext.h>
+#include <sys/wait.h>
+#include <sys/resource.h>
 
 #include <assert.h>
 #include <signal.h>
 #include <stdio.h>
-#include <sys/ucontext.h>
-#include <sys/wait.h>
-#include <sys/resource.h>
+#include <stdlib.h>
 
 pid_t child;
 int code;
diff --git a/regress/lib/libc/siginfo/sigsegv/sigsegv.c b/regress/lib/libc/siginfo/sigsegv/sigsegv.c
index ff56dfdb58ee..55ac058a76f9 100644
--- a/regress/lib/libc/siginfo/sigsegv/sigsegv.c
+++ b/regress/lib/libc/siginfo/sigsegv/sigsegv.c
@@ -1,9 +1,11 @@
-/* $NetBSD: sigsegv.c,v 1.4 2003/11/13 06:48:31 simonb Exp $ */
+/* $NetBSD: sigsegv.c,v 1.5 2006/05/10 19:07:22 mrg Exp $ */
+
+#include <sys/ucontext.h>
 
 #include <assert.h>
 #include <signal.h>
 #include <stdio.h>
-#include <sys/ucontext.h>
+#include <stdlib.h>
 
 void
 sigsegv(int signo, siginfo_t *info, void *ptr)
diff --git a/regress/sys/uvm/loan1/loan1.c b/regress/sys/uvm/loan1/loan1.c
index 5402cd9a8982..abfce25564a0 100644
--- a/regress/sys/uvm/loan1/loan1.c
+++ b/regress/sys/uvm/loan1/loan1.c
@@ -1,4 +1,4 @@
-/*	$Id: loan1.c,v 1.4 2004/03/02 10:13:13 yamt Exp $	*/
+/*	$Id: loan1.c,v 1.5 2006/05/10 19:07:22 mrg Exp $	*/
 
 /*-
  * Copyright (c)2004 YAMAMOTO Takashi,
@@ -33,6 +33,7 @@
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 
 #define	BUFSIZE	(32 * 1024)	/* enough size to trigger sosend_loan */