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Autodetect libLLVM*.so and use it if it exists; or, user can override if LLVMPY_DYNLINK.

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This commit is contained in:
Siu Kwan Lam 2013-01-31 16:00:39 -06:00
commit 5d54bbb1cd
1 changed files with 31 additions and 4 deletions
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35
setup.py
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@ -11,8 +11,6 @@ else:
default_llvm_config = 'llvm-config'
llvm_config = os.environ.get('LLVM_CONFIG_PATH', default_llvm_config)
# set LLVMPY_DYNLINK=0, if you want to link _core.so statically
dynlink = int(os.environ.get('LLVMPY_DYNLINK', 1))
def run_llvm_config(args):
cmd = llvm_config + ' ' + ' '.join(args)
@ -20,8 +18,7 @@ def run_llvm_config(args):
if run_llvm_config(['--version']) == '':
sys.exit("Cannot invoke llvm-config.\n"
"Try setting LLVM_CONFIG_PATH=/path/to/llvm-config")
"Try setting LLVM_CONFIG_PATH=/path/to/llvm-config")
def get_libs_and_objs(components):
parts = run_llvm_config(['--libs'] + components).split()
@ -61,7 +58,37 @@ auto_intrinsic_gen(incdir)
macros = [('__STDC_CONSTANT_MACROS', None),
('__STDC_LIMIT_MACROS', None)]
def determine_to_use_dynlink(libdir, llvm_version):
user_envvar = os.environ.get('LLVMPY_DYNLINK', None)
if user_envvar is not None:
# if users sets LLVMPY_DYNLINK=[0|1]
# respect the user setting
print('User sets LLVMPY_DYNLINK to %s' % user_envvar)
return bool(int(user_envvar))
else:
# otherwise, determine by scanning the libdir
libfile = 'libLLVM-%s' % llvm_version
print('Searching shared library %s in %s' % (libfile, libdir))
so = '%s.so' % libfile
dylib = '%s.dylib' % libfile
dll = '%s.dll' % libfile
libdir_content = os.listdir(libdir)
if sys.platform.startswith('linux'):
return so in libdir_content
elif sys.platform.startswith('darwin'):
return dylib in libdir_content or so in libdir_content
elif sys.platform.startswith('win32'):
return dll in libdir_content
else: # other platforms
return any((x in libdir_content) for x in [so, dyld, dll])
dynlink = determine_to_use_dynlink(libdir, llvm_version)
if dynlink:
print('Using dynamic linking')
libs_core = ['LLVM-%s' % llvm_version]
objs_core = []
else: