d086653cc3
* configure.ac: Unset PYTHON_LIBS. Support python 3.10. * m4/python.m4: Find correct version string for python >= 3.10. -- See-also: https://dev.gnupg.org/D546 Also test for 3.11 and 3.12 (wk).
351 lines
14 KiB
Plaintext
351 lines
14 KiB
Plaintext
## ------------------------ -*- Autoconf -*-
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## Python file handling
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## From Andrew Dalke
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## Updated by James Henstridge and other contributors.
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## Updated by Werner Koch 2018-10-17
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## ------------------------
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# Copyright (C) 1999-2021 Free Software Foundation, Inc.
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#
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]
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# [INTERPRETER-LIST])
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# ---------------------------------------------------------------------------
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# Adds support for distributing Python modules and packages. To
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# install modules, copy them to $(pythondir), using the python_PYTHON
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# automake variable. To install a package with the same name as the
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# automake package, install to $(pkgpythondir), or use the
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# pkgpython_PYTHON automake variable.
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#
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# The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
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# locations to install python extension modules (shared libraries).
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# Another macro is required to find the appropriate flags to compile
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# extension modules.
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#
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# If your package is configured with a different prefix to python,
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# users will have to add the install directory to the PYTHONPATH
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# environment variable, or create a .pth file (see the python
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# documentation for details).
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#
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# If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
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# cause an error if the version of python installed on the system
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# doesn't meet the requirement. MINIMUM-VERSION should consist of
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# numbers and dots only.
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AC_DEFUN([AM_PATH_PYTHON],
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[
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dnl Find a Python interpreter. Python versions prior to 2.7 are not
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dnl supported. Python 3.0 through to Python 3.3 are also not supported.
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m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
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[python2 python2.7 dnl
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python dnl
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python3 python3.10 python3.9 python3.8 python3.7 python3.6 python3.5 python3.4
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])
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AC_ARG_VAR([PYTHON], [the Python interpreter])
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m4_if([$1],[],[
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dnl No version check is needed.
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# Find any Python interpreter.
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if test -z "$PYTHON"; then
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AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
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fi
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am_display_PYTHON=python
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], [
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dnl A version check is needed.
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if test -n "$PYTHON"; then
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# If the user set $PYTHON, use it and don't search something else.
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AC_MSG_CHECKING([whether $PYTHON version is >= $1])
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AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
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[AC_MSG_RESULT([yes])],
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[AC_MSG_RESULT([no])
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AC_MSG_ERROR([Python interpreter is too old])])
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am_display_PYTHON=$PYTHON
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else
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# Otherwise, try each interpreter until we find one that satisfies
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# VERSION.
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AC_CACHE_CHECK([for a Python interpreter with version >= $1],
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[am_cv_pathless_PYTHON],[
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for am_cv_pathless_PYTHON dnl
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in m4_if([$4],[],[_AM_PYTHON_INTERPRETER_LIST],[$4]) none; do
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test "$am_cv_pathless_PYTHON" = none && break
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AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
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done])
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# Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
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if test "$am_cv_pathless_PYTHON" = none; then
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PYTHON=:
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else
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AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
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fi
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am_display_PYTHON=$am_cv_pathless_PYTHON
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fi
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])
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if test "$PYTHON" = :; then
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dnl Run any user-specified action, or abort.
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m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
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else
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dnl Query Python for its version number. Although site.py simply uses
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dnl sys.version[:3], printing that failed with Python 3.10, since the
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dnl trailing zero was eliminated. So now we output just the major
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dnl and minor version numbers, as numbers. Apparently the tertiary
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dnl version is not of interest.
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dnl
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AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
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[am_cv_python_version=`$PYTHON -c "import sys; print ('%u.%u' % sys.version_info[[:2]])"`])
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AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
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dnl At times, e.g., when building shared libraries, you may want
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dnl to know which OS platform Python thinks this is.
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dnl
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AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
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[am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
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AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
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dnl emacs-page
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dnl If --with-python-sys-prefix is given, use the values of sys.prefix
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dnl and sys.exec_prefix for the corresponding values of PYTHON_PREFIX
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dnl and PYTHON_EXEC_PREFIX. Otherwise, use the GNU ${prefix} and
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dnl ${exec_prefix} variables.
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dnl
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dnl The two are made distinct variables so they can be overridden if
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dnl need be, although general consensus is that you shouldn't need
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dnl this separation.
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dnl
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dnl Also allow directly setting the prefixes via configure options,
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dnl overriding any default.
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dnl
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if test "x$prefix" = xNONE; then
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am__usable_prefix=$ac_default_prefix
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else
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am__usable_prefix=$prefix
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fi
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# Allow user to request using sys.* values from Python,
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# instead of the GNU $prefix values.
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AC_ARG_WITH([python-sys-prefix],
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[AS_HELP_STRING([--with-python-sys-prefix],
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[use Python's sys.prefix and sys.exec_prefix values])],
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[am_use_python_sys=:],
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[am_use_python_sys=false])
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# Allow user to override whatever the default Python prefix is.
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AC_ARG_WITH([python_prefix],
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[AS_HELP_STRING([--with-python_prefix],
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[override the default PYTHON_PREFIX])],
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[am_python_prefix_subst=$withval
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am_cv_python_prefix=$withval
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AC_MSG_CHECKING([for explicit $am_display_PYTHON prefix])
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AC_MSG_RESULT([$am_cv_python_prefix])],
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[
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if $am_use_python_sys; then
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# using python sys.prefix value, not GNU
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AC_CACHE_CHECK([for python default $am_display_PYTHON prefix],
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[am_cv_python_prefix],
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[am_cv_python_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.prefix)"`])
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dnl If sys.prefix is a subdir of $prefix, replace the literal value of
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dnl $prefix with a variable reference so it can be overridden.
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case $am_cv_python_prefix in
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$am__usable_prefix*)
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am__strip_prefix=`echo "$am__usable_prefix" | sed 's|.|.|g'`
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am_python_prefix_subst=`echo "$am_cv_python_prefix" | sed "s,^$am__strip_prefix,\\${prefix},"`
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;;
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*)
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am_python_prefix_subst=$am_cv_python_prefix
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;;
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esac
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else # using GNU prefix value, not python sys.prefix
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am_python_prefix_subst='${prefix}'
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am_python_prefix=$am_python_prefix_subst
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AC_MSG_CHECKING([for GNU default $am_display_PYTHON prefix])
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AC_MSG_RESULT([$am_python_prefix])
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fi])
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# Substituting python_prefix_subst value.
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AC_SUBST([PYTHON_PREFIX], [$am_python_prefix_subst])
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# emacs-page Now do it all over again for Python exec_prefix, but with yet
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# another conditional: fall back to regular prefix if that was specified.
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AC_ARG_WITH([python_exec_prefix],
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[AS_HELP_STRING([--with-python_exec_prefix],
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[override the default PYTHON_EXEC_PREFIX])],
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[am_python_exec_prefix_subst=$withval
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am_cv_python_exec_prefix=$withval
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AC_MSG_CHECKING([for explicit $am_display_PYTHON exec_prefix])
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AC_MSG_RESULT([$am_cv_python_exec_prefix])],
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[
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# no explicit --with-python_exec_prefix, but if
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# --with-python_prefix was given, use its value for python_exec_prefix too.
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AS_IF([test -n "$with_python_prefix"],
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[am_python_exec_prefix_subst=$with_python_prefix
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am_cv_python_exec_prefix=$with_python_prefix
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AC_MSG_CHECKING([for python_prefix-given $am_display_PYTHON exec_prefix])
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AC_MSG_RESULT([$am_cv_python_exec_prefix])],
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[
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# Set am__usable_exec_prefix whether using GNU or Python values,
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# since we use that variable for pyexecdir.
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if test "x$exec_prefix" = xNONE; then
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am__usable_exec_prefix=$am__usable_prefix
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else
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am__usable_exec_prefix=$exec_prefix
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fi
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#
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if $am_use_python_sys; then # using python sys.exec_prefix, not GNU
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AC_CACHE_CHECK([for python default $am_display_PYTHON exec_prefix],
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[am_cv_python_exec_prefix],
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[am_cv_python_exec_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.exec_prefix)"`])
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dnl If sys.exec_prefix is a subdir of $exec_prefix, replace the
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dnl literal value of $exec_prefix with a variable reference so it can
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dnl be overridden.
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case $am_cv_python_exec_prefix in
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$am__usable_exec_prefix*)
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am__strip_prefix=`echo "$am__usable_exec_prefix" | sed 's|.|.|g'`
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am_python_exec_prefix_subst=`echo "$am_cv_python_exec_prefix" | sed "s,^$am__strip_prefix,\\${exec_prefix},"`
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;;
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*)
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am_python_exec_prefix_subst=$am_cv_python_exec_prefix
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;;
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esac
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else # using GNU $exec_prefix, not python sys.exec_prefix
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am_python_exec_prefix_subst='${exec_prefix}'
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am_python_exec_prefix=$am_python_exec_prefix_subst
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AC_MSG_CHECKING([for GNU default $am_display_PYTHON exec_prefix])
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AC_MSG_RESULT([$am_python_exec_prefix])
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fi])])
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# Substituting python_exec_prefix_subst.
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AC_SUBST([PYTHON_EXEC_PREFIX], [$am_python_exec_prefix_subst])
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# Factor out some code duplication into this shell variable.
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am_python_setup_sysconfig="\
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import sys
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# Prefer sysconfig over distutils.sysconfig, for better compatibility
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# with python 3.x. See automake bug#10227.
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try:
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import sysconfig
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except ImportError:
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can_use_sysconfig = 0
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else:
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can_use_sysconfig = 1
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# Can't use sysconfig in CPython 2.7, since it's broken in virtualenvs:
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# <https://github.com/pypa/virtualenv/issues/118>
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try:
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from platform import python_implementation
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if python_implementation() == 'CPython' and sys.version[[:3]] == '2.7':
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can_use_sysconfig = 0
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except ImportError:
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pass"
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dnl emacs-page Set up 4 directories:
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dnl 1. pythondir: where to install python scripts. This is the
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dnl site-packages directory, not the python standard library
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dnl directory like in previous automake betas. This behavior
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dnl is more consistent with lispdir.m4 for example.
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dnl Query distutils for this directory.
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dnl
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AC_CACHE_CHECK([for $am_display_PYTHON script directory (pythondir)],
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[am_cv_python_pythondir],
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[if test "x$am_cv_python_prefix" = x; then
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am_py_prefix=$am__usable_prefix
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else
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am_py_prefix=$am_cv_python_prefix
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fi
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am_cv_python_pythondir=`$PYTHON -c "
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$am_python_setup_sysconfig
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if can_use_sysconfig:
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sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
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else:
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from distutils import sysconfig
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sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
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sys.stdout.write(sitedir)"`
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#
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case $am_cv_python_pythondir in
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$am_py_prefix*)
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am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
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am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,\\${PYTHON_PREFIX},"`
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;;
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*)
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case $am_py_prefix in
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/usr|/System*) ;;
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*) am_cv_python_pythondir="\${PYTHON_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
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;;
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esac
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;;
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esac
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])
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AC_SUBST([pythondir], [$am_cv_python_pythondir])
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dnl 2. pkgpythondir: $PACKAGE directory under pythondir. Was
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dnl PYTHON_SITE_PACKAGE in previous betas, but this naming is
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dnl more consistent with the rest of automake.
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dnl
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AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
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dnl 3. pyexecdir: directory for installing python extension modules
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dnl (shared libraries).
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dnl Query distutils for this directory.
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dnl
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AC_CACHE_CHECK([for $am_display_PYTHON extension module directory (pyexecdir)],
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[am_cv_python_pyexecdir],
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[if test "x$am_cv_python_exec_prefix" = x; then
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am_py_exec_prefix=$am__usable_exec_prefix
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else
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am_py_exec_prefix=$am_cv_python_exec_prefix
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fi
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am_cv_python_pyexecdir=`$PYTHON -c "
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$am_python_setup_sysconfig
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if can_use_sysconfig:
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sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_exec_prefix'})
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else:
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from distutils import sysconfig
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sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_exec_prefix')
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sys.stdout.write(sitedir)"`
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#
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case $am_cv_python_pyexecdir in
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$am_py_exec_prefix*)
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am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
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am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,\\${PYTHON_EXEC_PREFIX},"`
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;;
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*)
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case $am_py_exec_prefix in
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/usr|/System*) ;;
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*) am_cv_python_pyexecdir="\${PYTHON_EXEC_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
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;;
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esac
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;;
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esac
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])
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AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
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dnl 4. pkgpyexecdir: $(pyexecdir)/$(PACKAGE)
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dnl
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AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])
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dnl Run any user-specified action.
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$2
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fi
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])
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# AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
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# ---------------------------------------------------------------------------
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# Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION.
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# Run ACTION-IF-FALSE otherwise.
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# This test uses sys.hexversion instead of the string equivalent (first
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# word of sys.version), in order to cope with versions such as 2.2c1.
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# This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
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AC_DEFUN([AM_PYTHON_CHECK_VERSION],
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[prog="import sys
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# split strings by '.' and convert to numeric. Append some zeros
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# because we need at least 4 digits for the hex conversion.
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# map returns an iterator in Python 3.0 and a list in 2.x
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minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
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minverhex = 0
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# xrange is not present in Python 3.0 and range returns an iterator
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for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
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sys.exit(sys.hexversion < minverhex)"
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AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
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