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Add a flag for disabling LTO. #17623

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Merged
merged 1 commit into from
Jun 17, 2020
Merged

Add a flag for disabling LTO. #17623

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3 changes: 3 additions & 0 deletions setup.cfg.template
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,9 @@
[egg_info]

[libs]
# By default, Matplotlib builds with LTO, which may be slow if you re-compile
# often, and don't need the space saving/speedup.
#enable_lto = True
# By default, Matplotlib downloads and builds its own copy of FreeType, and
# builds its own copy of Qhull. You may set the following to True to instead
# link against a system FreeType/Qhull.
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2 changes: 2 additions & 0 deletions setup.py
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Expand Up @@ -103,6 +103,8 @@ def add_optimization_flags(self):
"""

env = os.environ.copy()
if not setupext.config.getboolean('libs', 'enable_lto', fallback=True):
return env
if sys.platform == 'win32':
return env

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