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Title: bpo-26317: Support OBJC and OBJCXX configure command line variables by ned-deily · Pull Request #20176 · python/cpython · GitHub

Open Graph Title: bpo-26317: Support OBJC and OBJCXX configure command line variables by ned-deily · Pull Request #20176 · python/cpython

X Title: bpo-26317: Support OBJC and OBJCXX configure command line variables by ned-deily · Pull Request #20176 · python/cpython

Description: Add support to the configure script for OBJC and OBJCXX command line options so that the macOS builds can use the clang compiler for the macOS-specific Objective C source files. This allows third-party compilers, like GNU gcc, to be used to build the rest of the project since some of the Objective C system header files are not compilable by GNU gcc. Also, _scproxy.o is built outside of setup.py so that we can force the use of the OBJC compiler when the CC compiler is different. The Makefile builds _scproxy.o and the setup.py script takes care of using the object file to create the _scproxy module instead of compiling the file itself. This approach is taken because setup.py is designed to use a single compiler for everything. Adding support for a second alternative compiler would require re-plumbing distutils, which is complicated and unnecessary because setup.py allows module definitions to specify object files without any .c source files. This fixes the PythonLauncher build when CC is set to the GNU C compiler. In this case, OBJC can be set explicitly to "clang", or it can be left out and the configure script will automatically discover the clang compiler as the Objective C compiler. For example, a system that used brew to install the GNU C compiler as gcc-8 can specify CC=gcc-8 and the configure script will discover and use the clang compiler as if OBJC=gcc had been specified on the command line. The same behavior applies to the OBJCXX and CXX options. Patch contributed by Jeffrey Kintscher (@websurfer5). https://bugs.python.org/issue26317

Open Graph Description: Add support to the configure script for OBJC and OBJCXX command line options so that the macOS builds can use the clang compiler for the macOS-specific Objective C source files. This allows third-p...

X Description: Add support to the configure script for OBJC and OBJCXX command line options so that the macOS builds can use the clang compiler for the macOS-specific Objective C source files. This allows third-p...

Opengraph URL: https://github.com/python/cpython/pull/20176

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c18b3b0 bpo-26317: add support to the configure script for OBJC and OBJCXX websurfer5 May 12, 2019 https://github.com/python/cpython/pull/20176/commits/c18b3b0f25489ee2f08398aa90b41ba19685df46
22d5e5f bpo-26317: _scproxy.o needs to be built outside of setup.py so that w… websurfer5 May 14, 2019 https://github.com/python/cpython/pull/20176/commits/22d5e5fc6adec75972eb133441a9151f2155b300
21b7715 📜🤖 Added by blurb_it. blurb-it[bot] May 14, 2019 https://github.com/python/cpython/pull/20176/commits/21b77153f201dd7309ef41b8039b7e1ce4808e83
379ad02 bpo-26317: add What's New entry websurfer5 May 14, 2019 https://github.com/python/cpython/pull/20176/commits/379ad02761e1d290ba3d47e969bfb547beb7233d
fea1bd4 Merge branch 'fix-issue-26317' of github.com:websurfer5/cpython into … websurfer5 May 14, 2019 https://github.com/python/cpython/pull/20176/commits/fea1bd4a8c209a3e3e2fc8b76b29ec29a9fe1537
4b37d08 Merge branch 'master' into fix-issue-26317 websurfer5 Jun 28, 2019 https://github.com/python/cpython/pull/20176/commits/4b37d08fa53ec1f99896e9cf0e9b475ac1823d99
a6cb14b Merge branch 'master' into fix-issue-26317 websurfer5 Jul 10, 2019 https://github.com/python/cpython/pull/20176/commits/a6cb14badee14300c150e87351a67f7f7abe852a
9a6f855 Remove what's new 3.8 change. terryjreedy Jan 13, 2020 https://github.com/python/cpython/pull/20176/commits/9a6f855dfb578d8967ccbc0f52396990d7cbec62
e244152 Restore blank line terryjreedy Jan 13, 2020 https://github.com/python/cpython/pull/20176/commits/e2441525ca7eaa834c1fbf010b3eba536d47af45
7a982ed Merge branch 'master' into fix-issue-26317 terryjreedy Jan 13, 2020 https://github.com/python/cpython/pull/20176/commits/7a982ed1d0cdf63fda30c6e25574b55bf4af55b2
a375f51 Merge branch 'master' into fix-issue-26317 ned-deily May 18, 2020 https://github.com/python/cpython/pull/20176/commits/a375f5137f315d285f74fe7de19bcb90345250af
99dfa9e minor wording edits and bring back a whatsnew entry ned-deily May 18, 2020 https://github.com/python/cpython/pull/20176/commits/99dfa9efd2a0d7211dcebbcb6d4d46054e4d05f4
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