Now works also on a mac

Author: berndporr

README.md

@@ -64,7 +64,7 @@ for an instructional example.
 
 #### Pre-compiled package
 
-Windows / Linux / Mac (untested)
+Windows / Linux / Mac
 ```
     pip3 install fir1
 ```

setup.py

@@ -18,6 +18,7 @@ def read(fname):
 				sources=['fir1.i','Fir1.cpp'],
 				extra_compile_args=['-std=c++11'],
                                 swig_opts=['-c++','-py3'],
+			        include_dirs=[numpy.get_include()],
 				)
 elif platform == "win32":
 	fir1_module = Extension('_fir1',
@@ -29,7 +30,7 @@ def read(fname):
 
 
 setup (name = 'fir1',
-       version = '1.3.0.14',
+       version = '1.3.0.15',
        author      = "Bernd Porr",
        author_email = "[email protected]",
        url = "https://github.com/berndporr/fir1",