Force g++ to accept "long long" type

We are using --pedantic, and in that mode (old?) g++ treats the usage of "long
long" as an hard error.

Should fix issue #69.

CHANGES.rst

@@ -1,6 +1,14 @@
 Changes
 -------
 
+* next (unreleased)
+~~~~~~~~~~~~~~~~~~~
+
+* Compilable with somewhat old g++ (`issue #69__`)
+
+  __ https://github.com/python-rapidjson/python-rapidjson/issues/69
+
+
 0.0.11 (2017-03-05)
 ~~~~~~~~~~~~~~~~~~~
 

setup.py

@@ -64,8 +64,10 @@
         cflags = cflags.replace('-Wstrict-prototypes', '')
         sysconfig.get_config_vars()['CFLAGS'] = cflags
 
-    # Add -pedantic, so we get a warning when using non-standard features
-    extension_options['extra_compile_args'] = ['-pedantic']
+    # Add -pedantic, so we get a warning when using non-standard features, and
+    # -Wno-long-long to pacify old gcc (or Apple's hybrids) that treat "long
+    # long" as an error under C++ (see issue #69)
+    extension_options['extra_compile_args'] = ['-pedantic', '-Wno-long-long']
 
 rapidjson = Extension('rapidjson', **extension_options)