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bpo-30923: Silence fall-through warnings in libexpat build. (#3205)

This commit is contained in:
Stefan Krah 2017-08-25 14:07:50 +02:00 committed by GitHub
parent a3a6df36b6
commit 9e1e6f528f
1 changed files with 9 additions and 0 deletions
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9
setup.py
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@ -1518,6 +1518,7 @@ class PyBuildExt(build_ext):
if '--with-system-expat' in sysconfig.get_config_var("CONFIG_ARGS"):
expat_inc = []
define_macros = []
extra_compile_args = []
expat_lib = ['expat']
expat_sources = []
expat_depends = []
@ -1529,6 +1530,7 @@ class PyBuildExt(build_ext):
# call XML_SetHashSalt(), expat entropy sources are not needed
('XML_POOR_ENTROPY', '1'),
]
extra_compile_args = []
expat_lib = []
expat_sources = ['expat/xmlparse.c',
'expat/xmlrole.c',
@ -1546,8 +1548,15 @@ class PyBuildExt(build_ext):
'expat/xmltok_impl.h'
]
cc = sysconfig.get_config_var('CC').split()[0]
ret = os.system(
'"%s" -Werror -Wimplicit-fallthrough -E -xc /dev/null >/dev/null 2>&1' % cc)
if ret >> 8 == 0:
extra_compile_args.append('-Wno-implicit-fallthrough')
exts.append(Extension('pyexpat',
define_macros = define_macros,
extra_compile_args = extra_compile_args,
include_dirs = expat_inc,
libraries = expat_lib,
sources = ['pyexpat.c'] + expat_sources,