Switch to ANSI C style C function declarations.

  main(argc, argv) --> int main(int argc, char** argv)

Although we accept int, void, and char types, and pointers to same,
we actually still treat everything as an int.
diff --git a/libacc/tests/testlocal b/libacc/tests/testlocal
index 547aed5..ccabf7d 100755
--- a/libacc/tests/testlocal
+++ b/libacc/tests/testlocal
@@ -4,12 +4,14 @@
 g++ -I../include acc.cpp disassem.cpp tests/main.cpp -g -ldl -o tests/test-acc
 cd tests
 if [ -x "test-acc" ]; then
-  ./test-acc -S data/returnval.c
+  ./test-acc -S data/returnval-ansi.c
 
   if [ "$(uname)" = "Linux" ]; then
     if [ "$(uname -m)" = "i686" ]; then
-      echo "Linux i686. Testing otcc-noinclude.c"
-      ./test-acc data/otcc-noinclude.c data/otcc.c data/returnval.c
+      echo "Linux i686. Testing otcc-ansi.c"
+      ./test-acc data/otcc-ansi.c data/returnval.c
+      echo "Linux i686. Testing otcc-ansi.c data/otcc.c"
+      ./test-acc data/otcc-ansi.c data/otcc.c data/returnval.c
     fi
   fi
 fi