1 files changed, 23 insertions, 0 deletions
diff --git a/Modules/CheckFunctionExists.c b/Modules/CheckFunctionExists.c
new file mode 100644
index 000000000..607b3e8c6
--- /dev/null
+++ b/Modules/CheckFunctionExists.c
@@ -0,0 +1,23 @@
+#ifdef CHECK_FUNCTION_EXISTS
+
+char CHECK_FUNCTION_EXISTS();
+#ifdef __CLASSIC_C__
+int main(){
+  int ac;
+  char*av[];
+#else
+int main(int ac, char*av[]){
+#endif
+  CHECK_FUNCTION_EXISTS();
+  if(ac > 1000)
+    {
+    return *av[0];
+    }
+  return 0;
+}
+
+#else  /* CHECK_FUNCTION_EXISTS */
+
+#  error "CHECK_FUNCTION_EXISTS has to specify the function"
+
+#endif /* CHECK_FUNCTION_EXISTS */