fixes

src/compdb.cc

@@ -35,8 +35,8 @@ void Writer::write(
 	}
 
 	stream_
-		<< "\t\t\"directory\": \"" << escape(dir) << "\"\n"
-		<< "\t\t\"file\": \"" << escape(file) << "\"\n"
+		<< "\t\t\"directory\": \"" << escape(dir) << "\",\n"
+		<< "\t\t\"file\": \"" << escape(file) << "\",\n"
 		<< "\t\t\"command\": \"" << escape(cmd[0]);
 
 	for (size_t i = 1; i < cmd.size(); ++i) {

src/toolchain.cc

@@ -44,7 +44,7 @@ static const char *getCXXCompiler() {
 		return cxxCompiler;
 	}
 
-	cxxCompiler = getenv("CC");
+	cxxCompiler = getenv("CXX");
 	if (cxxCompiler != nullptr) {
 		return cxxCompiler;
 	}