support C++ in build

wscript

@@ -3,20 +3,24 @@ import sys
 APP_NAME = "cxlc"
 
 def options(opt):
-    opt.load("compiler_c");
+    opt.load("compiler_c compiler_cxx");
 
 def configure(conf):
-    conf.load("compiler_c flex bison");
+    conf.load("compiler_c compiler_cxx flex bison");
 
 def build(bld):
     sources = bld.path.ant_glob("src/**/*.c")
+    sources += bld.path.ant_glob("src/**/*.cc")
     lexer_source = "src/parser/parser.l"
-    parser_source = "src/parser/parser.y"
+    parser_source = "src/parser/parser.yc"
     sources += [lexer_source, parser_source]
     includes = ["src", "src/parser"]
     cflags = ["-Wall", "-O2"]
+    cxxflags = cflags
     bld.program(
+            features = ['c', 'cxx', 'cxxprogram'],
             source = sources,
             cflags = cflags,
+            cxxflags = cxxflags,
             target = APP_NAME,
             includes = includes)