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build: make waf append pkgconfig flags as-is

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waf apparently only appends a pkgconfig flag if it doesn't already exist in
the lib storage. Since our configure often checks for multiple libraries in
one call we want to keep the flags as is. This is especially important to
always keep stuff like -lm in the right place.
This commit is contained in:
Stefano Pigozzi 2013-11-24 15:49:34 +01:00
parent 2231d5e398
commit d8f1a57876
1 changed files with 14 additions and 3 deletions
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17
waftools/checks/generic.py
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@ -1,5 +1,6 @@
import os
from inflectors import DependencyInflector
from waflib.ConfigSet import ConfigSet
__all__ = [
"check_pkg_config", "check_cc", "check_statement", "check_libs",
@ -66,12 +67,22 @@ def check_pkg_config(*args, **kw_ext):
'package': " ".join(packages),
'args': sargs + pkgc_args }
opts = __merge_options__(dependency_identifier, defaults, kw_ext, kw)
if ctx.check_cfg(**opts):
return True
else:
# Warning! Megahack incoming: when parsing flags in `parse_flags` waf
# uses append_unique. This appends the flags only if they aren't
# already present in the list. This causes breakage if one checks for
# multiple pkg-config packages in a single call as stuff like -lm is
# added only at its first occurrence.
original_append_unique = ConfigSet.append_unique
ConfigSet.append_unique = ConfigSet.append_value
result = bool(ctx.check_cfg(**opts))
ConfigSet.append_unique = original_append_unique
if not result:
defkey = DependencyInflector(dependency_identifier).define_key()
ctx.undefine(defkey)
return False
return result
return fn
def check_headers(*headers):