Build failure for python@3.12.1 on mac with non-system version of ncurses #118873
Description
Bug report
Bug description:
Using the spack package manager to install python@3.12.1 on darwin-sonoma-m1 with the following command:
sasyed@MAC-140753 ~> spack install --keep-stage python@3.12.1+optimizations%clang@17.0.6 ^libffi@3.4.6
results in the following build error:
Build error
...
==> Installing python-3.12.1-frh24vuhc6b5eyy346wng65mlwm3h3il [21/21]
==> No binary for python-3.12.1-frh24vuhc6b5eyy346wng65mlwm3h3il found: installing from source
==> Fetching https://www.python.org/ftp/python/3.12.1/Python-3.12.1.tgz
==> Ran patch() for python
==> python: Executing phase: 'configure'
==> python: Executing phase: 'build'
==> python: Executing phase: 'install'
==> Error: ProcessError: Command exited with status 2:
'make' '-j1' 'install'
...
1763 ld: warning: reexported library with install name '@rpath/libunwind.1.dylib' found at '/Users/sasyed/Documents/packages/spack/opt/spa
ck/darwin-sonoma-m1/apple-clang-15.0.0/llvm-17.0.6-uzrfikeehxbzxp3x3twl6wjnh53hpvmr/lib/libunwind.1.0.dylib' couldn't be matched with
any parent library and will be linked directly
1764 DYLD_LIBRARY_PATH=/private/var/folders/mb/zd6pgmt100q77s5fhn5xf4jw0000gq/T/sasyed/spack-stage/spack-stage-python-3.12.1-frh24vuhc6b5e
yy346wng65mlwm3h3il/spack-src ./python.exe -E -c 'import sys ; from sysconfig import get_platform ; print("%s-%d.%d" % (get_platform(
), *sys.version_info[:2]))' >platform
>> 1765 [ERROR] _curses failed to import: dlopen(/private/var/folders/mb/zd6pgmt100q77s5fhn5xf4jw0000gq/T/sasyed/spack-stage/spack-stage-pyth
on-3.12.1-frh24vuhc6b5eyy346wng65mlwm3h3il/spack-src/build/lib.macosx-14.0-arm64-3.12/_curses.cpython-312-darwin.so, 0x0002): symbol
not found in flat namespace '_mvwadd_wch'
>> 1766 [ERROR] _curses_panel failed to import: PyCapsule_Import could not import module "_curses"
...
The associated log files with this build error are:
spack-build-01-configure-out.txt
spack-build-02-build-out.txt
spack-build-03-install-out.txt
No build error when building python@3.11.7. The associated log files are:
spack-build-01-configure-out.txt
spack-build-02-build-out.txt
spack-build-03-install-out.txt
Note that the following flags are added by spack when optimizations are turned on:
if "+optimizations" in spec:
config_args.append("--enable-optimizations")
# Prefer thin LTO for faster compilation times.
if "@3.11.0: %clang@3.9:" in spec or "@3.11.0: %apple-clang@8:" in spec:
config_args.append("--with-lto=thin")
else:
config_args.append("--with-lto")
config_args.append("--with-computed-gotos")
CPython versions tested on:
3.12
Operating systems tested on:
macOS