diff options
Diffstat (limited to 'setup.py')
| -rw-r--r-- | setup.py | 22 |
1 files changed, 17 insertions, 5 deletions
@@ -70,7 +70,9 @@ LICENSE = '3-clause BSD' # Environment variable to determine whether or not the Cython extension should # *use* Cython or use the generated C files. Note that this requires the C files -# to have been generated by building first *with* Cython support. +# to have been generated by building first *with* Cython support. Even if this +# is set to false, if the script detects that the generated `.c` file isn't +# present, then it will still attempt to use Cython. BUILD_WITH_CYTHON = os.environ.get('GRPC_PYTHON_BUILD_WITH_CYTHON', False) # Environment variable to determine whether or not to enable coverage analysis @@ -146,10 +148,20 @@ def cython_extensions(module_names, extra_sources, include_dirs, if ENABLE_CYTHON_TRACING: define_macros = define_macros + [('CYTHON_TRACE_NOGIL', 1)] cython_compiler_directives['linetrace'] = True - file_extension = 'pyx' if build_with_cython else 'c' - module_files = [os.path.join(PYTHON_STEM, - name.replace('.', '/') + '.' + file_extension) - for name in module_names] + pyx_module_files = [os.path.join(PYTHON_STEM, + name.replace('.', '/') + '.pyx') + for name in module_names] + c_module_files = [os.path.join(PYTHON_STEM, + name.replace('.', '/') + '.c') + for name in module_names] + if not build_with_cython: + for module_file in c_module_files: + if not os.path.isfile(module_file): + sys.stderr.write('Cython-generated files are missing; ' + 'forcing Cython build...\n') + build_with_cython = True + break + module_files = pyx_module_files if build_with_cython else c_module_files extensions = [ _extension.Extension( name=module_name, |