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configure should pick /usr/bin/g++ automatically if present #89072
Description
| BPO | 44909 |
|---|---|
| Nosy | @iritkatriel |
Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.
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GitHub fields:
assignee = None
closed_at = None
created_at = <Date 2021-08-13.07:31:29.458>
labels = ['build', '3.9']
title = 'configure should pick /usr/bin/g++ automatically if present'
updated_at = <Date 2021-08-13.07:31:29.458>
user = 'https://bugs.python.org/pmenzel'bugs.python.org fields:
activity = <Date 2021-08-13.07:31:29.458>
actor = 'pmenzel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Build']
creation = <Date 2021-08-13.07:31:29.458>
creator = 'pmenzel'
dependencies = []
files = []
hgrepos = []
issue_num = 44909
keywords = []
message_count = 1.0
messages = ['399497']
nosy_count = 3.0
nosy_names = ['krichter', 'iritkatriel', 'pmenzel']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue44909'
versions = ['Python 3.9']
Activity
pmenzel commentedon Aug 13, 2021
[copied from closed (out of date) issue https://bugs.python.org/issue25946]
Reproduced with Python 3.9.6.
./configure
both printschecking for g++... no` andif
/usr/bin/g++is present and executable which doesn't seem to be constructive because it's quite common that one wants to use/usr/bin/g++as CXX compiler if available. In case incompatibilities exists with other C++ compilers there should a check and more detailed error message.Furthermore the error message doesn't explain if a part of distutils won't be build because the message sounds like the C++ extension is built, but does it work without a C++ compiler?
Specifying
CXXenvironment variable or--with-cxx-main=/usr/bin/g++configureoption works fine.hugovk commentedon Oct 26, 2026
Fixed by #148298 / #148294.