diff options
| -rwxr-xr-x | Mac/BuildScript/build-installer.py | 10 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/macOS/2020-11-01-17-37-16.bpo-42235.A97_BN.rst | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/Mac/BuildScript/build-installer.py b/Mac/BuildScript/build-installer.py index 540b5a0..ff62096 100755 --- a/Mac/BuildScript/build-installer.py +++ b/Mac/BuildScript/build-installer.py @@ -436,6 +436,14 @@ 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(): @@ -1176,6 +1184,7 @@ 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')), @@ -1188,6 +1197,7 @@ 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])) diff --git a/Misc/NEWS.d/next/macOS/2020-11-01-17-37-16.bpo-42235.A97_BN.rst b/Misc/NEWS.d/next/macOS/2020-11-01-17-37-16.bpo-42235.A97_BN.rst new file mode 100644 index 0000000..eef4fcd --- /dev/null +++ b/Misc/NEWS.d/next/macOS/2020-11-01-17-37-16.bpo-42235.A97_BN.rst @@ -0,0 +1,2 @@ +``Mac/BuildScript/build-installer.py`` will now use "--enable-optimizations" +and ``--with-lto`` when building on macOS 10.15 or later. |