kc3-lang/automake

2021-05-18T15:11:59

python: use Python's sys.prefix and sys.exec_prefix for PYTHON_PREFIX and PYTHON_EXEC_PREFIX; new configure options --with-python_prefix and --with-python_exec_prefix to set explicitly. This change fixes https://bugs.gnu.org/35322. * m4/python.m4 (AM_PATH_PYTHON): use Python's sys.prefix and sys.exec_prefix for PYTHON_PREFIX and PYTHON_EXEC_PREFIX, instead of $prefix and $exec_prefix. But use a variable reference to ${prefix} if it is contained within sys.prefix; similarly for exec_prefix. Also support new configure options to set explicitly. (PYTHON_PREFIX, PYTHON_EXEC_PREFIX): AC_SUBST these. (am_cv_python_pythondir): use our new $am_cv_python_prefix, substituting ${PYTHON_PREFIX}. (am_cv_python_pyexecdir): likewise. * doc/automake.texi (Python): PYTHON_PREFIX, PYTHON_EXEC_PREFIX, document new approach. * t/instmany-python.sh: set PYTHON_PREFIX as needed. * t/python-vars.sh (PYTHON_EXEC_PREFIX, PYTHON_PREFIX): also set from Python's sys.{exec_,}prefix; use ${PYTHON_{EXEC,}PREFIX} instead of ${exec_,}prefix.