add nifty_gridder

nifty_gridder/setup.py

+from setuptools import setup, Extension
+import sys
+
+
+class _deferred_pybind11_include(object):
+    def __init__(self, user=False):
+        self.user = user
+
+    def __str__(self):
+        import pybind11
+        return pybind11.get_include(self.user)
+
+
+include_dirs = ['../', './', _deferred_pybind11_include(True),
+                _deferred_pybind11_include()]
+extra_compile_args = ['-Wall', '-Wextra', '-Wfatal-errors', '-Wstrict-aliasing=2', '-Wwrite-strings', '-Wredundant-decls', '-Woverloaded-virtual', '-Wcast-qual', '-Wcast-align', '-Wpointer-arith', '-Wfloat-conversion']
+#, '-Wsign-conversion', '-Wconversion'
+python_module_link_args = []
+
+if sys.platform == 'darwin':
+    import distutils.sysconfig
+    extra_compile_args += ['--std=c++11', '--stdlib=libc++', '-mmacosx-version-min=10.9']
+    vars = distutils.sysconfig.get_config_vars()
+    vars['LDSHARED'] = vars['LDSHARED'].replace('-bundle', '')
+    python_module_link_args+=['-bundle']
+else:
+    extra_compile_args += ['--std=c++11', '-march=native', '-O3', '-ffast-math']
+    python_module_link_args += ['-march=native', '-Wl,-rpath,$ORIGIN', '-ffast-math']
+
+# if you don't want debugging info, add "-s" to python_module_link_args
+
+
+def get_extension_modules():
+    return [Extension('nifty_gridder',
+                      sources=['nifty_gridder.cc', '../mr_util/threading.cc', '../mr_util/error_handling.cc'],
+                      depends=['../mr_util/error_handling.h', '../mr_util/fft.h', '../mr_util/threading.h',
+                               '../mr_util/aligned_array.h', '../mr_util/simd.h',
+                               '../mr_util/cmplx.h', '../mr_util/unity_roots.h',
+                               'setup.py', 'gridder_cxx.h'],
+                      include_dirs=include_dirs,
+                      extra_compile_args=extra_compile_args,
+                      extra_link_args=python_module_link_args)]
+
+setup(name='nifty_gridder',
+      version='0.0.1',
+      description='Gridding/Degridding helper library for NIFTy',
+      include_package_data=True,
+      author='Martin Reinecke',
+      author_email='martin@mpa-garching.mpg.de',
+      packages=[],
+      setup_requires=['numpy>=1.15.0', 'pybind11>=2.2.4'],
+      ext_modules=get_extension_modules(),
+      install_requires=['numpy>=1.15.0', 'pybind11>=2.2.4']
+      )