fix signal prototypes

ChangeLog

@@ -1,3 +1,11 @@
+2010-07-04  Robert Larice
+ * src/include/defines.h :
+		for non MSC: use sighandler_t from <signal.h>
+		FIXME, should work for MSC as well, please check
+
+ * src/include/fteext.h :
+        ansi function declarations (prototypes) for some signal functions
+
 2010-07-03  Robert Larice
  * src/frontend/evaluate.c ,
  * src/include/fteparse.h :

src/include/defines.h

@@ -115,7 +115,7 @@
 #if defined(_MSC_VER)
 #  define SIGNAL_FUNCTION RETSIGTYPE (*)(int)
 #else
-#  define SIGNAL_FUNCTION RETSIGTYPE (*)( )
+#  define SIGNAL_FUNCTION sighandler_t
 #endif
 #endif
 

src/include/fteext.h

@@ -412,10 +412,10 @@ extern char *cp_program;
 extern RETSIGTYPE ft_sigintr(void);
 extern RETSIGTYPE sigfloat(int sig, int code);
 extern RETSIGTYPE sigstop(void);
-extern RETSIGTYPE sigill();
-extern RETSIGTYPE sigbus();
-extern RETSIGTYPE sigsegv();
-extern RETSIGTYPE sig_sys();
+extern RETSIGTYPE sigill(void);
+extern RETSIGTYPE sigbus(void);
+extern RETSIGTYPE sigsegv(void);
+extern RETSIGTYPE sig_sys(void);
 extern int main(int argc, char **argv);
 
 /* spiceif.c & nutmegif.c */