linux-unwind.h: Guard with inhibit_libc.

	* pa/linux-unwind.h: Guard with inhibit_libc.
	* pa/hpux-unwind.h: Likewise.

From-SVN: r128396

gcc/ChangeLog

+2007-09-11  Steve Kenton  <skenton@ou.edu
+
+	* pa/linux-unwind.h: Guard with inhibit_libc.
+	* pa/hpux-unwind.h: Likewise.
+
 2007-09-11  David Daney  <ddaney@avtrex.com>
 
 	* doc/invoke.texi: Document new MIPS -mllsc and -mno-llsc options.

gcc/config/pa/hpux-unwind.h

@@ -29,6 +29,9 @@ Boston, MA 02110-1301, USA.  */
 /* Do code reading to identify a signal frame, and set the frame
    state data appropriately.  See unwind-dw2.c for the structs.  */
 
+/* Don't use this if inhibit_libc is set.
+   The build for this target will fail trying to include missing headers. */
+#ifndef inhibit_libc
 #include <signal.h>
 #include <sys/ucontext.h>
 #include <unistd.h>
@@ -358,3 +361,4 @@ pa_fallback_frame_state (struct _Unwind_Context *context,
 
   return _URC_END_OF_STACK;
 }
+#endif /* inhibit_libc */

gcc/config/pa/linux-unwind.h

@@ -29,6 +29,9 @@ Boston, MA 02110-1301, USA.  */
 /* Do code reading to identify a signal frame, and set the frame
    state data appropriately.  See unwind-dw2.c for the structs.  */
 
+/* Don't use this if inhibit_libc is set.
+   The build for this target will fail trying to include missing headers. */
+#ifndef inhibit_libc
 #include <signal.h>
 #include <sys/ucontext.h>
 
@@ -137,3 +140,4 @@ pa32_fallback_frame_state (struct _Unwind_Context *context,
   fs->retaddr_column = DWARF_ALT_FRAME_RETURN_COLUMN;
   return _URC_NO_REASON;
 }
+#endif /* inhibit_libc */