Using C for standard library, since it can't depend on lib(std)c++.

CMakeLists.txt

@@ -114,5 +114,5 @@ target_link_libraries(mcc
 
 ## 6. Build the runtime library too
 
-add_library(mcrt STATIC Runtime.cpp)
+add_library(mcrt STATIC Runtime.c)
 

Runtime.c

@@ -17,11 +17,11 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "Runtime.hpp"
+#include "Runtime.h"
 
-#include <cstdio>
-#include <cstdlib>
-#include <cassert>
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
 
 
 void Monicelli_putBool(Monicelli_Bool value) {