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detect lz4.h header file location 

use similar code as for openssl headers
This commit is contained in:
Thomas Waldmann 2015-09-12 19:38:38 +02:00
parent d74da7c031
commit cff7dffc95
2 changed files with 27 additions and 3 deletions
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2
docs/usage.rst
View File

@ -69,6 +69,8 @@ Directories:
Building:
BORG_OPENSSL_PREFIX
Adds given OpenSSL header file directory to the default locations (setup.py).
BORG_LZ4_PREFIX
Adds given LZ4 header file directory to the default locations (setup.py).
Please note:

28
setup.py
View File

@ -71,14 +71,36 @@ def detect_openssl(prefixes):
return prefix
def detect_lz4(prefixes):
for prefix in prefixes:
filename = os.path.join(prefix, 'include', 'lz4.h')
if os.path.exists(filename):
with open(filename, 'r') as fd:
if 'LZ4_decompress_safe' in fd.read():
return prefix
include_dirs = []
library_dirs = []
possible_openssl_prefixes = ['/usr', '/usr/local', '/usr/local/opt/openssl', '/usr/local/ssl', '/usr/local/openssl', '/usr/local/borg', '/opt/local']
if os.environ.get('BORG_OPENSSL_PREFIX'):
possible_openssl_prefixes.insert(0, os.environ.get('BORG_OPENSSL_PREFIX'))
ssl_prefix = detect_openssl(possible_openssl_prefixes)
if not ssl_prefix:
raise Exception('Unable to find OpenSSL >= 1.0 headers. (Looked here: {})'.format(', '.join(possible_openssl_prefixes)))
include_dirs = [os.path.join(ssl_prefix, 'include')]
library_dirs = [os.path.join(ssl_prefix, 'lib')]
include_dirs.append(os.path.join(ssl_prefix, 'include'))
library_dirs.append(os.path.join(ssl_prefix, 'lib'))
possible_lz4_prefixes = ['/usr', '/usr/local', '/usr/local/borg', '/opt/local']
if os.environ.get('BORG_LZ4_PREFIX'):
possible_openssl_prefixes.insert(0, os.environ.get('BORG_LZ4_PREFIX'))
lz4_prefix = detect_lz4(possible_lz4_prefixes)
if not lz4_prefix:
raise Exception('Unable to find LZ4 headers. (Looked here: {})'.format(', '.join(possible_lz4_prefixes)))
include_dirs.append(os.path.join(lz4_prefix, 'include'))
library_dirs.append(os.path.join(lz4_prefix, 'lib'))
with open('README.rst', 'r') as fd:
@ -87,7 +109,7 @@ with open('README.rst', 'r') as fd:
cmdclass = {'build_ext': build_ext, 'sdist': Sdist}
ext_modules = [
Extension('borg.compress', [compress_source], libraries=['lz4']),
Extension('borg.compress', [compress_source], libraries=['lz4'], include_dirs=include_dirs, library_dirs=library_dirs),
Extension('borg.crypto', [crypto_source], libraries=['crypto'], include_dirs=include_dirs, library_dirs=library_dirs),
Extension('borg.chunker', [chunker_source]),
Extension('borg.hashindex', [hashindex_source])