some tweaks to the moved tests to make them more suitable for automatic testing

test/val/signal-test.c

@@ -1,12 +1,16 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <errno.h>
 #include <signal.h>
 
+int signalcounter = 0;
+
 
 void __fastcall__ sighandler (int sig)
 {
     printf ("Got signal #%d\n", sig);
+    signalcounter++;
 }
 
 
@@ -15,15 +19,18 @@ int main (void)
 {
     if (signal (SIGSEGV, sighandler) == SIG_ERR) {
         printf ("signal failure %d: %s\n", errno, strerror (errno));
-        return 1;
+        return EXIT_FAILURE;
     }
     printf ("About to raise SIGSEGV...\n");
     raise (SIGSEGV);
     printf ("Back from signal handler\n");
     printf ("About to raise SIGILL...\n");
     raise (SIGILL);
-    printf ("Back from signal handler\n");
-    return 0;
+    printf ("Back from signal handler, signalcounter = %d\n", signalcounter);
+    if (signalcounter != 1) {
+        return EXIT_FAILURE;
+    }
+    return EXIT_SUCCESS;
 }