[3.8] bpo-42235: [macOS] Use LTO/PGO in build-installer.py with new enough compilers (GH-23079) by miss-islington · Pull Request #25832 · python/cpython

Expand Up @@ -432,6 +432,14 @@ def library_recipes():
return result
def compilerCanOptimize(): """ Return True iff the default Xcode version can use PGO and LTO """ # bpo-42235: The version check is pretty conservative, can be # adjusted after testing mac_ver = tuple(map(int, platform.mac_ver()[0].split('.'))) return mac_ver >= (10, 15)
# Instructions for building packages inside the .mpkg. def pkg_recipes(): Expand Down Expand Up @@ -1172,6 +1180,7 @@ def buildPython(): "%s " "%s " "%s " "%s " "LDFLAGS='-g -L%s/libraries/usr/local/lib' " "CFLAGS='-g -I%s/libraries/usr/local/include' 2>&1"%( shellQuote(os.path.join(SRCDIR, 'configure')), Expand All @@ -1184,6 +1193,7 @@ def buildPython(): shellQuote(WORKDIR)[1:-1],))[internalTk()], (' ', "--with-tcltk-libs='-L%s/libraries/usr/local/lib -ltcl8.6 -ltk8.6'"%( shellQuote(WORKDIR)[1:-1],))[internalTk()], (' ', "--enable-optimizations --with-lto")[compilerCanOptimize()], shellQuote(WORKDIR)[1:-1], shellQuote(WORKDIR)[1:-1]))
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