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Issue #26661: setup.py now detects system libffi with multiarch wrapper.

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This commit is contained in:
Christian Heimes 2016-09-18 14:35:39 +02:00
commit aa630e051b
2 changed files with 11 additions and 7 deletions
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2
Misc/NEWS
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@ -99,6 +99,8 @@ Windows
Build Build
----- -----
- Issue #26661: setup.py now detects system libffi with multiarch wrapper.
- Issue #27979: A full copy of libffi is no longer bundled for use when - Issue #27979: A full copy of libffi is no longer bundled for use when
building _ctypes on non-OSX UNIX platforms. An installed copy of libffi is building _ctypes on non-OSX UNIX platforms. An installed copy of libffi is
now required when building _ctypes on such platforms. now required when building _ctypes on such platforms.

16
setup.py
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@ -1976,14 +1976,16 @@ class PyBuildExt(build_ext):
ffi_inc = find_file('ffi.h', [], inc_dirs) ffi_inc = find_file('ffi.h', [], inc_dirs)
if ffi_inc is not None: if ffi_inc is not None:
ffi_h = ffi_inc[0] + '/ffi.h' ffi_h = ffi_inc[0] + '/ffi.h'
with open(ffi_h) as fp: with open(ffi_h) as f:
while 1: for line in f:
line = fp.readline() line = line.strip()
if not line: if line.startswith(('#define LIBFFI_H',
'#define ffi_wrapper_h')):
break
else:
ffi_inc = None ffi_inc = None
break print('Header file {} does not define LIBFFI_H or '
if line.startswith('#define LIBFFI_H'): 'ffi_wrapper_h'.format(ffi_h))
break
ffi_lib = None ffi_lib = None
if ffi_inc is not None: if ffi_inc is not None:
for lib_name in ('ffi', 'ffi_pic'): for lib_name in ('ffi', 'ffi_pic'):