2010-12-03 Joel Sherrill <joel.sherrill@oarcorp.com>

* configure.ac, posix/src/signal_2.c: sighandler_t is defined
	conditionally in some versions of newlib and unconditionally in
	others. Make sure we always compile.

cpukit/ChangeLog

@@ -1,3 +1,9 @@
+2010-12-03	Joel Sherrill <joel.sherrill@oarcorp.com>
+
+	* configure.ac, posix/src/signal_2.c: sighandler_t is defined
+	conditionally in some versions of newlib and unconditionally in
+	others. Make sure we always compile.
+
 2010-11-30	Sebastian Huber <sebastian.huber@embedded-brains.de>
 
 	* libcsupport/src/newlibc_exit.c, score/src/threadhandler.c: Revert

cpukit/configure.ac

@@ -134,7 +134,11 @@ AC_CHECK_HEADER([pthread.h],[
   AC_CHECK_TYPES([pthread_spinlock_t])
 ])
 
-RTEMS_CHECK_MULTIPROCESSING
+AC_CHECK_HEADER([signal.h],[
+  AC_CHECK_TYPES([sighandler_t])
+])
+
+  RTEMS_CHECK_MULTIPROCESSING
 RTEMS_CHECK_POSIX_API
 RTEMS_CHECK_NETWORKING
 

cpukit/posix/src/signal_2.c

@@ -18,7 +18,9 @@
 #include <signal.h>
 #include <errno.h>
 
-typedef void (*sighandler_t)(int);
+#ifndef HAVE_SIGHANDLER_T
+  typedef void (*sighandler_t)(int);
+#endif
 
 sighandler_t signal(
   int           signum,