default.nix: Test with -DLUA_USE_ASSERT and -Werror

The standard test cases are all executed with VMs build with
-DLUA_USE_ASSERT. If the check argument is specified then the VM is
also built with -Werror to check for (fail on) compiler warnings.

default.nix

@@ -15,8 +15,12 @@
 let
   callPackage = (pkgs.lib.callPackageWith { inherit pkgs source version; });
   raptorjit = (callPackage ./raptorjit.nix {});
-  test = name: args: (callPackage ./test.nix { inherit raptorjit name args; });
+  raptorjit-assert = raptorjit.overrideAttrs(
+                       old: { NIX_CFLAGS_COMPILE = " -DLUA_USE_ASSERT"; });
+  test = name: args: (callPackage ./test.nix { inherit name args; raptorjit = raptorjit-assert; });
   check-generated-code = (callPackage ./check-generated-code.nix { inherit raptorjit; });
+  nowarnings = raptorjit.overrideAttrs(
+                 old: { NIX_CFLAGS_COMPILE = "-Werror"; });
 in
 
 # Build RaptorJIT and run mulitple test suites.
@@ -27,5 +31,5 @@ in
   test-O1    = test "O1"    "-O1";
   test-nojit = test "nojit" "-joff";
 } //
-(if check then { inherit check-generated-code; } else {})
+(if check then { inherit nowarnings check-generated-code; } else {})
 

src/Makefile

@@ -28,7 +28,7 @@ NODOTABIVER= 51
 # to slow down the C part by not omitting it. Debugging, tracebacks and
 # unwinding are not affected -- the assembler part has frame unwind
 # information and GCC emits it where needed (x64) or with -g (see CCDEBUG).
-CCOPT= -O2 -fomit-frame-pointer -Werror
+CCOPT= -O2 -fomit-frame-pointer
 # Use this if you want to generate a smaller binary (but it's slower):
 #CCOPT= -Os -fomit-frame-pointer
 # Note: it's no longer recommended to use -O3 with GCC 4.x.