simdjson requires a compiler compliant with the C++11 standard

[nineteendo]

I can't install #124 on macOS:

$ pip install git+https://github.com/TkTech/pysimdjson@draft_7 -v
Using pip 25.0.1 from /usr/local/lib/python3.13/site-packages/pip (python 3.13)
Collecting git+https://github.com/TkTech/pysimdjson@draft_7
  Cloning https://github.com/TkTech/pysimdjson (to revision draft_7) to /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-req-build-4i9v5t5z
  Running command git version
  git version 2.39.3 (Apple Git-145)
  Running command git clone --filter=blob:none https://github.com/TkTech/pysimdjson /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-req-build-4i9v5t5z
  Cloning into '/private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-req-build-4i9v5t5z'...
  Updating files:  96% (393/408)
  Updating files:  97% (396/408)
  Updating files:  98% (400/408)
  Updating files:  99% (404/408)
  Updating files: 100% (408/408)
  Updating files: 100% (408/408), done.
  Running command git show-ref draft_7
  c6f89f99b77e31a3bce0bb10da9977b6a4306822 refs/remotes/origin/draft_7
  Running command git symbolic-ref -q HEAD
  refs/heads/master
  Running command git checkout -b draft_7 --track origin/draft_7
  Switched to a new branch 'draft_7'
  branch 'draft_7' set up to track 'origin/draft_7'.
  Resolved https://github.com/TkTech/pysimdjson to commit c6f89f99b77e31a3bce0bb10da9977b6a4306822
  Running command git rev-parse HEAD
  c6f89f99b77e31a3bce0bb10da9977b6a4306822
  Running command pip subprocess to install build dependencies
  Using pip 25.0.1 from /usr/local/lib/python3.13/site-packages/pip (python 3.13)
  Collecting setuptools>=74.1
    Obtaining dependency information for setuptools>=74.1 from https://files.pythonhosted.org/packages/90/99/158ad0609729111163fc1f674a5a42f2605371a4cf036d0441070e2f7455/setuptools-78.1.1-py3-none-any.whl.metadata
    Using cached setuptools-78.1.1-py3-none-any.whl.metadata (6.5 kB)
  Collecting Cython
    Obtaining dependency information for Cython from https://files.pythonhosted.org/packages/67/ad/550ddcb8b5a5d9949fe6606595cce36984c1d42309f1e04af98f5933a7ea/Cython-3.0.12-cp313-cp313-macosx_10_13_x86_64.whl.metadata
    Using cached Cython-3.0.12-cp313-cp313-macosx_10_13_x86_64.whl.metadata (3.5 kB)
  Using cached setuptools-78.1.1-py3-none-any.whl (1.3 MB)
  Using cached Cython-3.0.12-cp313-cp313-macosx_10_13_x86_64.whl (3.4 MB)
  Installing collected packages: setuptools, Cython
    Creating /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-build-env-7ctqlx2h/overlay/bin
    changing mode of /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-build-env-7ctqlx2h/overlay/bin/cygdb to 755
    changing mode of /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-build-env-7ctqlx2h/overlay/bin/cython to 755
    changing mode of /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-build-env-7ctqlx2h/overlay/bin/cythonize to 755
  Successfully installed Cython-3.0.12 setuptools-78.1.1
  Installing build dependencies ... done
  Running command Getting requirements to build wheel
  /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-build-env-7ctqlx2h/overlay/lib/python3.13/site-packages/setuptools/config/pyprojecttoml.py:72: _ExperimentalConfiguration: `[tool.setuptools.ext-modules]` in `pyproject.toml` is still *experimental* and likely to change in future releases.
    config = read_configuration(filepath, True, ignore_option_errors, dist)
  running egg_info
  creating pysimdjson.egg-info
  writing pysimdjson.egg-info/PKG-INFO
  writing dependency_links to pysimdjson.egg-info/dependency_links.txt
  writing requirements to pysimdjson.egg-info/requires.txt
  writing top-level names to pysimdjson.egg-info/top_level.txt
  writing manifest file 'pysimdjson.egg-info/SOURCES.txt'
  reading manifest file 'pysimdjson.egg-info/SOURCES.txt'
  reading manifest template 'MANIFEST.in'
  adding license file 'LICENSE'
  writing manifest file 'pysimdjson.egg-info/SOURCES.txt'
  Getting requirements to build wheel ... done
  Running command Preparing metadata (pyproject.toml)
  /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-build-env-7ctqlx2h/overlay/lib/python3.13/site-packages/setuptools/config/pyprojecttoml.py:72: _ExperimentalConfiguration: `[tool.setuptools.ext-modules]` in `pyproject.toml` is still *experimental* and likely to change in future releases.
    config = read_configuration(filepath, True, ignore_option_errors, dist)
  running dist_info
  creating /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-modern-metadata-e2ohmivk/pysimdjson.egg-info
  writing /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-modern-metadata-e2ohmivk/pysimdjson.egg-info/PKG-INFO
  writing dependency_links to /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-modern-metadata-e2ohmivk/pysimdjson.egg-info/dependency_links.txt
  writing requirements to /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-modern-metadata-e2ohmivk/pysimdjson.egg-info/requires.txt
  writing top-level names to /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-modern-metadata-e2ohmivk/pysimdjson.egg-info/top_level.txt
  writing manifest file '/private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-modern-metadata-e2ohmivk/pysimdjson.egg-info/SOURCES.txt'
  reading manifest file '/private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-modern-metadata-e2ohmivk/pysimdjson.egg-info/SOURCES.txt'
  reading manifest template 'MANIFEST.in'
  adding license file 'LICENSE'
  writing manifest file '/private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-modern-metadata-e2ohmivk/pysimdjson.egg-info/SOURCES.txt'
  creating '/private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-modern-metadata-e2ohmivk/pysimdjson-7.0.0.dist-info'
  Preparing metadata (pyproject.toml) ... done
Building wheels for collected packages: pysimdjson
  Running command git rev-parse HEAD
  c6f89f99b77e31a3bce0bb10da9977b6a4306822
  Running command Building wheel for pysimdjson (pyproject.toml)
  /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-build-env-7ctqlx2h/overlay/lib/python3.13/site-packages/setuptools/config/pyprojecttoml.py:72: _ExperimentalConfiguration: `[tool.setuptools.ext-modules]` in `pyproject.toml` is still *experimental* and likely to change in future releases.
    config = read_configuration(filepath, True, ignore_option_errors, dist)
  running bdist_wheel
  running build
  running build_py
  creating build/lib.macosx-13.0-x86_64-cpython-313/simdjson
  copying simdjson/__init__.py -> build/lib.macosx-13.0-x86_64-cpython-313/simdjson
  running egg_info
  writing pysimdjson.egg-info/PKG-INFO
  writing dependency_links to pysimdjson.egg-info/dependency_links.txt
  writing requirements to pysimdjson.egg-info/requires.txt
  writing top-level names to pysimdjson.egg-info/top_level.txt
  reading manifest file 'pysimdjson.egg-info/SOURCES.txt'
  reading manifest template 'MANIFEST.in'
  adding license file 'LICENSE'
  writing manifest file 'pysimdjson.egg-info/SOURCES.txt'
  copying simdjson/__init__.pyi -> build/lib.macosx-13.0-x86_64-cpython-313/simdjson
  copying simdjson/csimdjson.pyx -> build/lib.macosx-13.0-x86_64-cpython-313/simdjson
  copying simdjson/py.typed -> build/lib.macosx-13.0-x86_64-cpython-313/simdjson
  copying simdjson/simdjson.cpp -> build/lib.macosx-13.0-x86_64-cpython-313/simdjson
  copying simdjson/simdjson.h -> build/lib.macosx-13.0-x86_64-cpython-313/simdjson
  copying simdjson/util.cpp -> build/lib.macosx-13.0-x86_64-cpython-313/simdjson
  copying simdjson/util.h -> build/lib.macosx-13.0-x86_64-cpython-313/simdjson
  running build_ext
  Compiling simdjson/csimdjson.pyx because it changed.
  [1/1] Cythonizing simdjson/csimdjson.pyx
  building 'csimdjson' extension
  creating build/temp.macosx-13.0-x86_64-cpython-313/simdjson
  clang++ -fno-strict-overflow -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX13.sdk -I/usr/local/opt/python@3.13/Frameworks/Python.framework/Versions/3.13/include/python3.13 -c simdjson/csimdjson.cpp -o build/temp.macosx-13.0-x86_64-cpython-313/simdjson/csimdjson.o
  In file included from simdjson/csimdjson.cpp:1265:
  In file included from simdjson/util.h:3:
  simdjson/simdjson.h:89:2: error: simdjson requires a compiler compliant with the C++11 standard
  #error simdjson requires a compiler compliant with the C++11 standard
   ^
  simdjson/simdjson.h:391:38: error: expected function body after function declarator
  double from_chars(const char *first) noexcept;
                                       ^
  simdjson/simdjson.h:392:55: error: expected function body after function declarator
  double from_chars(const char *first, const char* end) noexcept;
                                                        ^
  simdjson/simdjson.h:2546:52: error: expected function body after function declarator
  inline const char *error_message(error_code error) noexcept;
                                                     ^
  simdjson/simdjson.h:2551:70: error: expected function body after function declarator
  inline std::ostream& operator<<(std::ostream& out, error_code error) noexcept;
                                                                       ^
  simdjson/simdjson.h:2561:35: error: expected ';' at end of declaration list
    simdjson_error(error_code error) noexcept : _error{error} { }
                                    ^
                                    ;
  simdjson/simdjson.h:2599:41: error: expected ';' at end of declaration list
    simdjson_inline simdjson_result_base() noexcept;
                                          ^
                                          ;
  simdjson/simdjson.h:2604:57: error: expected ';' at end of declaration list
    simdjson_inline simdjson_result_base(error_code error) noexcept;
                                                          ^
                                                          ;
  simdjson/simdjson.h:2609:42: warning: rvalue references are a C++11 extension [-Wc++11-extensions]
    simdjson_inline simdjson_result_base(T &&value) noexcept;
                                           ^
  simdjson/simdjson.h:2609:50: error: expected ';' at end of declaration list
    simdjson_inline simdjson_result_base(T &&value) noexcept;
                                                   ^
                                                   ;
  simdjson/simdjson.h:2614:42: warning: rvalue references are a C++11 extension [-Wc++11-extensions]
    simdjson_inline simdjson_result_base(T &&value, error_code error) noexcept;
                                           ^
  simdjson/simdjson.h:2614:68: error: expected ';' at end of declaration list
    simdjson_inline simdjson_result_base(T &&value, error_code error) noexcept;
                                                                     ^
                                                                     ;
  simdjson/simdjson.h:2622:57: warning: reference qualifiers on functions are a C++11 extension [-Wc++11-extensions]
    simdjson_inline void tie(T &value, error_code &error) && noexcept;
                                                          ^
  simdjson/simdjson.h:2622:59: error: expected ';' at end of declaration list
    simdjson_inline void tie(T &value, error_code &error) && noexcept;
                                                            ^
                                                            ;
  simdjson/simdjson.h:2629:44: warning: reference qualifiers on functions are a C++11 extension [-Wc++11-extensions]
    simdjson_inline error_code get(T &value) && noexcept;
                                             ^
  simdjson/simdjson.h:2629:46: error: expected ';' at end of declaration list
    simdjson_inline error_code get(T &value) && noexcept;
                                               ^
                                               ;
  simdjson/simdjson.h:2634:43: error: expected ';' at end of declaration list
    simdjson_inline error_code error() const noexcept;
                                            ^
                                            ;
  simdjson/simdjson.h:2643:30: warning: reference qualifiers on functions are a C++11 extension [-Wc++11-extensions]
    simdjson_inline T& value() & noexcept(false);
                               ^
  simdjson/simdjson.h:2643:31: error: expected ';' at end of declaration list
    simdjson_inline T& value() & noexcept(false);
                                ^
                                ;
  simdjson/simdjson.h:2650:20: warning: rvalue references are a C++11 extension [-Wc++11-extensions]
    simdjson_inline T&& value() && noexcept(false);
                     ^
  simdjson/simdjson.h:2650:31: warning: reference qualifiers on functions are a C++11 extension [-Wc++11-extensions]
    simdjson_inline T&& value() && noexcept(false);
                                ^
  simdjson/simdjson.h:2650:33: error: expected ';' at end of declaration list
    simdjson_inline T&& value() && noexcept(false);
                                  ^
                                  ;
  simdjson/simdjson.h:2657:20: warning: rvalue references are a C++11 extension [-Wc++11-extensions]
    simdjson_inline T&& take_value() && noexcept(false);
                     ^
  simdjson/simdjson.h:2657:36: warning: reference qualifiers on functions are a C++11 extension [-Wc++11-extensions]
    simdjson_inline T&& take_value() && noexcept(false);
                                     ^
  simdjson/simdjson.h:2657:38: error: expected ';' at end of declaration list
    simdjson_inline T&& take_value() && noexcept(false);
                                       ^
                                       ;
  simdjson/simdjson.h:2664:19: error: 'operator type-parameter-0-0' cannot be the name of a variable or data member
    simdjson_inline operator T&&() && noexcept(false);
                    ^
  simdjson/simdjson.h:2664:29: error: expected ';' at end of declaration list
    simdjson_inline operator T&&() && noexcept(false);
                              ^
                              ;
  simdjson/simdjson.h:2671:48: warning: reference qualifiers on functions are a C++11 extension [-Wc++11-extensions]
    simdjson_inline const T& value_unsafe() const& noexcept;
                                                 ^
  simdjson/simdjson.h:2671:49: error: expected ';' at end of declaration list
    simdjson_inline const T& value_unsafe() const& noexcept;
                                                  ^
                                                  ;
  simdjson/simdjson.h:2677:20: warning: rvalue references are a C++11 extension [-Wc++11-extensions]
    simdjson_inline T&& value_unsafe() && noexcept;
                     ^
  simdjson/simdjson.h:2677:38: warning: reference qualifiers on functions are a C++11 extension [-Wc++11-extensions]
    simdjson_inline T&& value_unsafe() && noexcept;
                                       ^
  fatal error: too many errors emitted, stopping now [-ferror-limit=]
  12 warnings and 20 errors generated.
  error: command '/usr/bin/clang++' failed with exit code 1
  error: subprocess-exited-with-error
  
  × Building wheel for pysimdjson (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> See above for output.
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  full command: /usr/local/opt/python@3.13/bin/python3.13 /usr/local/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py build_wheel /var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/tmpjz10ndxc
  cwd: /private/var/folders/q6/k4kvhdds6zxg_d2b3mhdck0c0000gp/T/pip-req-build-4i9v5t5z
  Building wheel for pysimdjson (pyproject.toml) ... error
  ERROR: Failed building wheel for pysimdjson
Failed to build pysimdjson
ERROR: Failed to build installable wheels for some pyproject.toml based projects (pysimdjson)

[TkTech]

See comment on the PR

[ryandesign]

The bug is that the build used to supply the -std=c++11 flag to the compiler and now it doesn't.

The PR fixing it was #128.

Although this issue is marked as completed, it looks like you have chosen not to fix this issue.

Please reconsider: since your code uses C++11 features, it is correct for you to supply the -std=c++11 flag. This benefits both older compilers that default to an older mode and newer compilers that default to a newer mode.

[TkTech]

What is this actually breaking for you? No version of xcode we support now is less than c++11 by default and we support all newer standards.

This isn't a limitation we chose, it's a bug in setuptools' support of pyproject.toml

[ryandesign]

It is breaking compiling with older compilers.