-Wall -Wextra compains about unused arguments,
causes safe-stack to be mis-detected.
--- a/configure
+++ b/configure
@@ -2293,7 +2293,7 @@ fi
 cat > $TMPC << EOF
 #include <stdint.h>
 #include <stdio.h>
-int main(int argc, char *argv[]) {
+int main(void) {
     return printf("%zu", SIZE_MAX);
 }
 EOF
@@ -4911,7 +4911,7 @@ fi
 
 if test "$safe_stack" = "yes"; then
 cat > $TMPC << EOF
-int main(int argc, char *argv[])
+int main(void)
 {
 #if ! __has_feature(safe_stack)
 #error SafeStack Disabled
@@ -4933,7 +4933,7 @@ EOF
   fi
 else
 cat > $TMPC << EOF
-int main(int argc, char *argv[])
+int main(void)
 {
 #if defined(__has_feature)
 #if __has_feature(safe_stack)
@@ -5283,7 +5283,7 @@ static const int Z = 1;
 #define TAUT(X) ((X) == Z)
 #define PAREN(X, Y) (X == Y)
 #define ID(X) (X)
-int main(int argc, char *argv[])
+int main(void)
 {
     int x = 0, y = 0;
     x = ID(x);