diff --git a/aclocal.m4 b/aclocal.m4
index a926977e3..9a672e2ab 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -496,6 +496,7 @@ AC_DEFUN(MP_CHECK_FRAMEWORK_IOKIT, [
 		AC_LINK_IFELSE([
 			AC_LANG_PROGRAM([
 					#include <IOKit/IOKitLib.h>
+					#include <IOKit/pwr_mgt/IOPMLib.h>
 				], [
 					IOCreateReceivePort(0, NULL);
 					IORegisterForSystemPower(0, NULL, NULL, NULL);
diff --git a/configure b/configure
index 7c7b1dc1e..9a4fd76bc 100755
--- a/configure
+++ b/configure
@@ -6005,6 +6005,7 @@ else
 
 
 					#include <IOKit/IOKitLib.h>
+					#include <IOKit/pwr_mgt/IOPMLib.h>
 
 int
 main ()
diff --git a/vendor/tcl8.5.19/unix/configure b/vendor/tcl8.5.19/unix/configure
index 7ff9f7257..fcb64f18e 100755
--- a/vendor/tcl8.5.19/unix/configure
+++ b/vendor/tcl8.5.19/unix/configure
@@ -2798,6 +2798,7 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <ctype.h>
+#include <stdlib.h>
 #if ((' ' & 0x0FF) == 0x020)
 # define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
@@ -14488,6 +14489,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
+#include <stdlib.h>
 int main() {
     extern int strstr();
     exit(strstr("\0test", "test") ? 1 : 0);
@@ -14655,6 +14657,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
+#include <stdlib.h>
 int main() {
     extern int strtoul();
     char *term, *string = "0";
@@ -14822,6 +14825,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
+#include <stdlib.h>
 int main() {
     extern double strtod();
     char *term, *string = " +69";
@@ -14993,6 +14997,7 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 
+		#include <stdlib.h>
 		extern double strtod();
 		int main() {
 		    char *infString="Inf", *nanString="NaN", *spaceString=" ";
@@ -16380,6 +16385,7 @@ cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 
 	#include <stdlib.h>
+	#include <string.h>
 	#define OURVAR "havecopy=yes"
 	int main (int argc, char *argv[])
 	{
diff --git a/vendor/tcl8.5.19/unix/configure.in b/vendor/tcl8.5.19/unix/configure.in
index e4255b6df..af2a26a14 100755
--- a/vendor/tcl8.5.19/unix/configure.in
+++ b/vendor/tcl8.5.19/unix/configure.in
@@ -453,6 +453,7 @@ fi
 AC_CACHE_CHECK([for a putenv() that copies the buffer], tcl_cv_putenv_copy, [
     AC_TRY_RUN([
 	#include <stdlib.h>
+	#include <string.h>
 	#define OURVAR "havecopy=yes"
 	int main (int argc, char *argv[])
 	{
diff --git a/vendor/tcl8.5.19/unix/tcl.m4 b/vendor/tcl8.5.19/unix/tcl.m4
index a7faae550..f482460ce 100644
--- a/vendor/tcl8.5.19/unix/tcl.m4
+++ b/vendor/tcl8.5.19/unix/tcl.m4
@@ -2587,6 +2587,7 @@ AC_DEFUN([SC_BUGGY_STRTOD], [
     if test "$tcl_strtod" = 1; then
 	AC_CACHE_CHECK([for Solaris2.4/Tru64 strtod bugs], tcl_cv_strtod_buggy,[
 	    AC_TRY_RUN([
+		#include <stdlib.h>
 		extern double strtod();
 		int main() {
 		    char *infString="Inf", *nanString="NaN", *spaceString=" ";
@@ -2864,7 +2865,10 @@ AC_DEFUN([SC_TCL_CHECK_BROKEN_FUNC],[
     AC_CHECK_FUNC($1, tcl_ok=1, tcl_ok=0)
     if test ["$tcl_ok"] = 1; then
 	AC_CACHE_CHECK([proper ]$1[ implementation], [tcl_cv_]$1[_unbroken],
-	    AC_TRY_RUN([[int main() {]$2[}]],[tcl_cv_]$1[_unbroken]=ok,
+	    AC_TRY_RUN([[
+#include <stdlib.h>
+#include <string.h>
+int main() {]$2[}]],[tcl_cv_]$1[_unbroken]=ok,
 		[tcl_cv_]$1[_unbroken]=broken,[tcl_cv_]$1[_unbroken]=unknown))
 	if test ["$tcl_cv_]$1[_unbroken"] = "ok"; then
 	    tcl_ok=1
diff --git a/vendor/tclx8.4/configure b/vendor/tclx8.4/configure
index be63b1795..154515ccc 100755
--- a/vendor/tclx8.4/configure
+++ b/vendor/tclx8.4/configure
@@ -3214,6 +3214,7 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <ctype.h>
+#include <stdlib.h>
 #if ((' ' & 0x0FF) == 0x020)
 # define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
@@ -10766,6 +10767,7 @@ cat >>conftest.$ac_ext <<_ACEOF
 
 #include <sys/types.h>
 #include <sys/times.h>
+#include <unistd.h>
 main() {
     struct tms cpu;
     times(&cpu);
diff --git a/vendor/tclx8.4/configure.in b/vendor/tclx8.4/configure.in
index 173ec261f..d1be5550e 100755
--- a/vendor/tclx8.4/configure.in
+++ b/vendor/tclx8.4/configure.in
@@ -194,6 +194,7 @@ WIFEXITED(x);	/* Generates compiler error if WIFEXITED uses an int. */
     AC_TRY_RUN([
 #include <sys/types.h>
 #include <sys/times.h>
+#include <unistd.h>
 main() {
     struct tms cpu;
     times(&cpu);
diff --git a/vendor/tclx8.4/tclconfig/tcl.m4 b/vendor/tclx8.4/tclconfig/tcl.m4
index 18d71343f..6b6ab41e4 100644
--- a/vendor/tclx8.4/tclconfig/tcl.m4
+++ b/vendor/tclx8.4/tclconfig/tcl.m4
@@ -2441,6 +2441,7 @@ AC_DEFUN(TEA_BUGGY_STRTOD, [
     if test "$tcl_strtod" = 1; then
 	AC_CACHE_CHECK([for Solaris2.4/Tru64 strtod bugs], tcl_cv_strtod_buggy,[
 	    AC_TRY_RUN([
+		#include <stdlib.h>
 		extern double strtod();
 		int main() {
 		    char *infString="Inf", *nanString="NaN", *spaceString=" ";
diff --git a/vendor/thread2.7.3/configure b/vendor/thread2.7.3/configure
index 621bf8cd1..e8e4a7b1c 100755
--- a/vendor/thread2.7.3/configure
+++ b/vendor/thread2.7.3/configure
@@ -4003,6 +4003,7 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <ctype.h>
+#include <stdlib.h>
 #if ((' ' & 0x0FF) == 0x020)
 # define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
diff --git a/vendor/thread2.7.3/tclconfig/tcl.m4 b/vendor/thread2.7.3/tclconfig/tcl.m4
index f679256fd..328508f31 100644
--- a/vendor/thread2.7.3/tclconfig/tcl.m4
+++ b/vendor/thread2.7.3/tclconfig/tcl.m4
@@ -2584,6 +2584,7 @@ AC_DEFUN([TEA_BUGGY_STRTOD], [
     if test "$tcl_strtod" = 1; then
 	AC_CACHE_CHECK([for Solaris2.4/Tru64 strtod bugs], tcl_cv_strtod_buggy,[
 	    AC_TRY_RUN([
+		#include <stdlib.h>
 		extern double strtod();
 		int main() {
 		    char *infString="Inf", *nanString="NaN", *spaceString=" ";