diff -up src/module_list.py.orig src/module_list.py
--- src/module_list.py.orig	2017-04-11 10:02:15.848276304 -0400
+++ src/module_list.py	2017-04-11 10:02:24.616276640 -0400
@@ -855,7 +855,7 @@ ext_modules = [
               library_dirs = m4ri_library_dirs,
               include_dirs = m4ri_include_dirs,
               depends = [SAGE_INC + "/m4rie/m4rie.h"],
-              extra_compile_args = ['-std=c99'] + m4ri_extra_compile_args),
+              extra_compile_args = ['-std=c++11'] + m4ri_extra_compile_args),
 
     Extension('sage.matrix.matrix_modn_dense_float',
               sources = ['sage/matrix/matrix_modn_dense_float.pyx'],