signal_.c (G77_signal_0): Make return type sig_pf as well.

        * libF77/signal_.c (G77_signal_0): Make return type sig_pf as well.
        * libI77/fio.h: Include <string.h> if STDC_HEADERS.
        * libU77/chmod_.c: Likewise.

From-SVN: r15911

gcc/f/runtime/libF77/signal_.c

@@ -2,13 +2,13 @@
 #include "signal1.h"
 
 #ifdef KR_headers
-ftnint G77_signal_0 (sigp, proc) integer *sigp; sig_pf proc;
+sig_pf G77_signal_0 (sigp, proc) integer *sigp; sig_pf proc;
 #else
-ftnint G77_signal_0 (integer *sigp, sig_pf proc)
+sig_pf G77_signal_0 (integer *sigp, sig_pf proc)
 #endif
 {
 	int sig;
 	sig = (int)*sigp;
 
-	return (ftnint)signal(sig, proc);
+	return signal(sig, proc);
 	}

gcc/f/runtime/libI77/fio.h

@@ -4,6 +4,9 @@
 /* ANSI C */
 #include <stddef.h>
 #endif
+#ifdef STDC_HEADERS
+#include <string.h>
+#endif
 
 #ifndef SEEK_SET
 #define SEEK_SET 0

gcc/f/runtime/libU77/chmod_.c

@@ -31,6 +31,9 @@ Boston, MA 02111-1307, USA.  */
 #else
 #  include <stdio.h>
 #endif
+#if STDC_HEADERS
+#  include <string.h>
+#endif
 
 #include "f2c.h"