New submission from Johan Herland <jherl...@cisco.com>:
First time contributor here, still learning the ropes.
We're cross-compiling python in an environment where we set up CPPFLAGS,
LDFLAGS, etc. to point directly to the locations where we have built Python's
dependencies. For example, we will typically build Python in an environment
that includes:
CPPFLAGS=\
-isystem /path/to/ncurses/build/include \
-isystem /path/to/libffi/build/include \
-isystem /path/to/zlib/build/include \
-isystem /path/to/openssl/build/include \
-isystem /path/to/readline/build/include
LDFLAGS=\
-L/path/to/ncurses/build/lib \
-L/path/to/libffi/build/lib \
-L/path/to/zlib/build/lib \
-L/path/to/openssl/build/lib \
-L/path/to/ciscossl-fom/build/lib \
-L/path/to/readline/build/lib
setup.py already picks up our -L options from LDFLAGS and propagates them into
the build commands, but the -isystem options from CPPFLAGS are currently
ignored.
I will post a PR that teaches setup.py to handle -isystem options in CPPFLAGS
the same way it currently handles -I options.
----------
components: Cross-Build
messages: 349054
nosy: Alex.Willmer, jherland
priority: normal
severity: normal
status: open
title: Need setup.py to pick up -isystem flags from CPPFLAGS
type: enhancement
versions: Python 3.8, Python 3.9
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue37763>
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