a02aeb236c
Former-commit-id:06a8b51d6d[formerly 64fa9254b946eae7e61bbc3f513b7c3696c4f54f] Former-commit-id:9f19e3f712
168 lines
7.1 KiB
Text
168 lines
7.1 KiB
Text
## ------------------------ -*- Autoconf -*-
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## Python file handling
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## From Andrew Dalke
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## Updated by James Henstridge
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## ------------------------
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# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
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# 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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# ---------------------------------------------------------------------------
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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 1.5 are not
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dnl supported because the default installation locations changed from
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dnl $prefix/lib/site-python in 1.4 to $prefix/lib/python1.5/site-packages
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dnl in 1.5.
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m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
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[python python2 python2.5 python2.4 python2.3 python2.2 dnl
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python2.1 python2.0 python1.6 python1.5])
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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 >= $1])
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AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
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[AC_MSG_RESULT(yes)],
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[AC_MSG_ERROR(too old)])
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am_display_PYTHON=$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 >= $1],
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[am_cv_pathless_PYTHON],[
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for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
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test "$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. Getting [:3] seems to be
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dnl the best way to do this; it's what "site.py" does in the standard
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dnl library.
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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 sys.version[[:3]]"`])
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AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
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dnl Use the values of $prefix and $exec_prefix for the corresponding
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dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX. These are made
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dnl distinct variables so they can be overridden if need be. However,
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dnl general consensus is that you shouldn't need this ability.
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AC_SUBST([PYTHON_PREFIX], ['${prefix}'])
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AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])
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dnl At times (like 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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AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
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[am_cv_python_platform=`$PYTHON -c "import sys; print sys.platform"`])
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AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
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dnl Set up 4 directories:
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dnl 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. distutils does not exist in
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dnl Python 1.5, so we fall back to the hardcoded directory if it
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dnl doesn't work.
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AC_CACHE_CHECK([for $am_display_PYTHON script directory],
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[am_cv_python_pythondir],
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[am_cv_python_pythondir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(0,0,prefix='$PYTHON_PREFIX')" 2>/dev/null ||
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echo "$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages"`])
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AC_SUBST([pythondir], [$am_cv_python_pythondir])
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dnl pkgpythondir -- $PACKAGE directory under pythondir. Was
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dnl PYTHON_SITE_PACKAGE in previous betas, but this naming is
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dnl more consistent with the rest of automake.
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AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
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dnl pyexecdir -- directory for installing python extension modules
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dnl (shared libraries)
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dnl Query distutils for this directory. distutils does not exist in
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dnl Python 1.5, so we fall back to the hardcoded directory if it
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dnl doesn't work.
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AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
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[am_cv_python_pyexecdir],
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[am_cv_python_pyexecdir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(1,0,prefix='$PYTHON_EXEC_PREFIX')" 2>/dev/null ||
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echo "${PYTHON_EXEC_PREFIX}/lib/python${PYTHON_VERSION}/site-packages"`])
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AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
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dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
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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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# hexversion has been introduced in Python 1.5.2; it's probably not
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# worth to support older versions (1.5.1 was released on October 31, 1998).
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AC_DEFUN([AM_PYTHON_CHECK_VERSION],
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[prog="import sys, string
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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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minver = map(int, string.split('$2', '.')) + [[0, 0, 0]]
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minverhex = 0
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for i in xrange(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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