Fix compilation on MacOS

Apparently libsigc++ requires explicitly using C++11 here.

1 files changed, 1 insertions, 0 deletions

diff --git a/wscript b/wscript
index 880dba7..0371288 100644
--- a/wscript
+++ b/wscript
@@ -40,6 +40,7 @@ def configure(conf):
     conf.load('compiler_cxx', cache=True)
     conf.load('autowaf', cache=True)
     autowaf.set_c_lang(conf, 'c99')
+    autowaf.set_cxx_lang(conf, 'c++11')
 
     if Options.options.ultra_strict:
         autowaf.add_compiler_flags(conf.env, 'c', {