1 files changed, 1 insertions, 0 deletions
diff --git a/wscript b/wscript
index a9da71c..6ca76f7 100644
--- a/wscript
+++ b/wscript
@@ -44,6 +44,7 @@ def configure(conf):
     conf.load('compiler_c', cache=True)
     conf.load('compiler_cxx', cache=True)
     conf.load('autowaf', cache=True)
+    autowaf.set_c_lang(conf, 'c99')
 
     conf.env.BUILD_SHARED = not conf.options.no_shared
     conf.env.BUILD_STATIC = conf.options.static