Fixing cffi autobuild error (convert error to warning) (#268)

* adding warning flag to incomp function pointer type only on darwin

* removing optimization compiler args

Author: mayantaylor

charm4py/charmlib/charmlib_cffi_build.py

@@ -6,8 +6,10 @@
 
 if platform.system() == 'Darwin':
     extra_link_args=["-Wl,-rpath,@loader_path/../.libs"]
+    extra_compile_args=['-Wno-error=incompatible-function-pointer-types']
 else:
     extra_link_args=["-Wl,-rpath,$ORIGIN/../.libs"]
+    extra_compile_args=[]
 
 
 ffibuilder.set_source("charm4py.charmlib._charmlib_cffi",
@@ -100,7 +102,7 @@
     libraries=['charm'],
     include_dirs=['charm_src/charm/include'],
     library_dirs=['charm4py/.libs'],
-    extra_compile_args=['-g0', '-O3'],
+    extra_compile_args=extra_compile_args,
     extra_link_args=extra_link_args)
 
 ffibuilder.cdef("""

setup.py

@@ -343,7 +343,7 @@ def install(self):
                               include_dirs=['charm_src/charm/include'] + my_include_dirs,
                               library_dirs=[os.path.join(os.getcwd(), 'charm4py', '.libs')],
                               libraries=["charm"],
-                              extra_compile_args=['-g0', '-O3'],
+                              extra_compile_args=[],
                               extra_link_args=extra_link_args,
                               ), compile_time_env={'HAVE_NUMPY': haveNumpy}))
 
@@ -352,7 +352,7 @@ def install(self):
                               include_dirs=['charm_src/charm/include'] + my_include_dirs,
                               library_dirs=[os.path.join(os.getcwd(), 'charm4py', '.libs')],
                               libraries=["charm"],
-                              extra_compile_args=['-g0', '-O3'],
+                              extra_compile_args=[],
                               extra_link_args=cobject_extra_args,
                               ), compile_time_env={'HAVE_NUMPY': haveNumpy}))
     else: