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waf: introduce reverse logic for allowing unknown symbols

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Some os (ie OSX 10.6) forbids by default unknown symbols so in order to
allow them (for special case) we have no to remove linker option *but*
to add options to ask the linker to be more relax.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Matthieu Patou 2011-04-16 01:15:51 +04:00 committed by Andrew Bartlett
parent 0ffc4c51ee
commit 3a88d49d12
2 changed files with 9 additions and 0 deletions
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4
buildtools/wafsamba/samba_deps.py
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@ -89,6 +89,10 @@ def build_dependencies(self):
for f in self.env.undefined_ldflags:
self.ldflags.remove(f)
if getattr(self, 'allow_undefined_symbols', False) and self.env.undefined_ignore_ldflags:
for f in self.env.undefined_ignore_ldflags:
self.ldflags.append(f)
debug('deps: computed dependencies for target %s: uselib=%s uselib_local=%s add_objects=%s',
self.sname, self.uselib, self.uselib_local, self.add_objects)

5
wscript
View File

@ -122,6 +122,11 @@ def configure(conf):
if sys.platform != "openbsd4":
conf.env.undefined_ldflags = conf.ADD_LDFLAGS('-Wl,-no-undefined', testflags=True)
if sys.platform != "openbsd4" and conf.env.undefined_ignore_ldflags == []:
if conf.CHECK_LDFLAGS(['-undefined', 'dynamic_lookup']):
conf.env.undefined_ignore_ldflags = ['-undefined', 'dynamic_lookup']
# gentoo always adds this. We want our normal build to be as
# strict as the strictest OS we support, so adding this here
# allows us to find problems on our development hosts faster.