Added an extension for libfastsolver and fix for loading so in Debian

setup.py

@@ -12,7 +12,7 @@ from src.version import softwareVersion
 EXTRAS_REQUIRE = {
     'gir': ['pygobject'],
     'notify2': ['notify2'],
-    'pyopencl': ['pyopencl', 'numpy'],
+    'opencl': ['pyopencl', 'numpy'],
     'prctl': ['python_prctl'],  # Named threads
     'qrcode': ['qrcode'],
     'sound;platform_system=="Windows"': ['winsound'],
@@ -50,6 +50,15 @@ if __name__ == "__main__":
     with open(os.path.join(here, 'README.md')) as f:
         README = f.read()
 
+    libfastsolver = Extension(
+        'pybitmessage.workprover.fastsolver.libfastsolver',
+        sources=[
+            'src/workprover/fastsolver/common.c',
+            'src/workprover/fastsolver/pthread.c'],
+        include_dirs=['src/workprover/fastsolver'],
+        libraries=['pthread', 'crypto'],
+    )
+
     installRequires = []
     packages = [
         'pybitmessage',
@@ -116,6 +125,7 @@ if __name__ == "__main__":
             ('share/icons/hicolor/24x24/apps/',
                 ['desktop/icons/24x24/pybitmessage.png'])
         ],
+        ext_modules=[libfastsolver],
         zip_safe=False,
         entry_points={
             'bitmessage.gui.menu': [

src/workprover/fastsolver.py

@@ -21,6 +21,17 @@ def loadFastSolver(codePath):
         except:
             raise FastSolverError()
 
+    # dh_python renames so
+    if platform.dist()[0] in ('debian', 'ubuntu'):
+        import glob
+        try:
+            return ctypes.CDLL(glob.glob(os.path.join(
+                codePath, "fastsolver",
+                "libfastsolver.{}*.so".format(platform.machine())
+            ))[0])
+        except (OSError, IndexError):
+            pass
+
     makePath = os.path.join(codePath, "fastsolver")
     path = os.path.join(codePath, "fastsolver/libfastsolver.so")