# Copyright (C) 2007 Nedko Arnaudov <nedko@arnaudov.name>
# This file is distributed under the same terms as the Autoconf macro files.
+# AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+# ---------------------------------------------------------------------------
+# Adds support for distributing Python modules and packages. To
+# install modules, copy them to $(pythondir), using the python_PYTHON
+# automake variable. To install a package with the same name as the
+# automake package, install to $(pkgpythondir), or use the
+# pkgpython_PYTHON automake variable.
+#
+# The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
+# locations to install python extension modules (shared libraries).
+# Another macro is required to find the appropriate flags to compile
+# extension modules.
+#
+# If your package is configured with a different prefix to python,
+# users will have to add the install directory to the PYTHONPATH
+# environment variable, or create a .pth file (see the python
+# documentation for details).
+#
+# If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
+# cause an error if the version of python installed on the system
+# doesn't meet the requirement. MINIMUM-VERSION should consist of
+# numbers and dots only.
+AC_DEFUN([AM_PATH_PYTHON],
+ [
+ dnl Find a Python interpreter. Python versions prior to 1.5 are not
+ dnl supported because the default installation locations changed from
+ dnl $prefix/lib/site-python in 1.4 to $prefix/lib/python1.5/site-packages
+ dnl in 1.5.
+ m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
+ [python python2 python2.5 python2.4 python2.3 python2.2 dnl
+python2.1 python2.0 python1.6 python1.5])
+
+ m4_if([$1],[],[
+ dnl No version check is needed.
+ # Find any Python interpreter.
+ if test -z "$PYTHON"; then
+ AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
+ fi
+ am_display_PYTHON=python
+ ], [
+ dnl A version check is needed.
+ if test -n "$PYTHON"; then
+ # If the user set $PYTHON, use it and don't search something else.
+ AC_MSG_CHECKING([whether $PYTHON version >= $1])
+ AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
+ [AC_MSG_RESULT(yes)],
+ [AC_MSG_ERROR(too old)])
+ am_display_PYTHON=$PYTHON
+ else
+ # Otherwise, try each interpreter until we find one that satisfies
+ # VERSION.
+ AC_CACHE_CHECK([for a Python interpreter with version >= $1],
+ [am_cv_pathless_PYTHON],[
+ for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
+ test "$am_cv_pathless_PYTHON" = none && break
+ AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
+ done])
+ # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
+ if test "$am_cv_pathless_PYTHON" = none; then
+ PYTHON=:
+ else
+ AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
+ fi
+ am_display_PYTHON=$am_cv_pathless_PYTHON
+ fi
+ ])
+
+ if test "$PYTHON" = :; then
+ dnl Run any user-specified action, or abort.
+ m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
+ else
+
+ dnl Query Python for its version number. Getting [:3] seems to be
+ dnl the best way to do this; it's what "site.py" does in the standard
+ dnl library.
+
+ AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
+ [am_cv_python_version=`$PYTHON -c "import sys; print sys.version[[:3]]"`])
+ AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
+
+ dnl Use the values of $prefix and $exec_prefix for the corresponding
+ dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX. These are made
+ dnl distinct variables so they can be overridden if need be. However,
+ dnl general consensus is that you shouldn't need this ability.
+
+ AC_SUBST([PYTHON_PREFIX], [`$PYTHON -c "import sys; print sys.prefix"`])
+ AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])
+
+ dnl At times (like when building shared libraries) you may want
+ dnl to know which OS platform Python thinks this is.
+
+ AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
+ [am_cv_python_platform=`$PYTHON -c "import sys; print sys.platform"`])
+ AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
+
+
+ dnl Set up 4 directories:
+
+ dnl pythondir -- where to install python scripts. This is the
+ dnl site-packages directory, not the python standard library
+ dnl directory like in previous automake betas. This behavior
+ dnl is more consistent with lispdir.m4 for example.
+ dnl Query distutils for this directory. distutils does not exist in
+ dnl Python 1.5, so we fall back to the hardcoded directory if it
+ dnl doesn't work.
+ AC_CACHE_CHECK([for $am_display_PYTHON script directory],
+ [am_cv_python_pythondir],
+ [am_cv_python_pythondir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(0,0,prefix='$PYTHON_PREFIX')" 2>/dev/null ||
+ echo "$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages"`])
+ AC_SUBST([pythondir], [$am_cv_python_pythondir])
+
+ dnl pkgpythondir -- $PACKAGE directory under pythondir. Was
+ dnl PYTHON_SITE_PACKAGE in previous betas, but this naming is
+ dnl more consistent with the rest of automake.
+
+ AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
+
+ dnl pyexecdir -- directory for installing python extension modules
+ dnl (shared libraries)
+ dnl Query distutils for this directory. distutils does not exist in
+ dnl Python 1.5, so we fall back to the hardcoded directory if it
+ dnl doesn't work.
+ AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
+ [am_cv_python_pyexecdir],
+ [am_cv_python_pyexecdir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(1,0,prefix='$PYTHON_EXEC_PREFIX')" 2>/dev/null ||
+ echo "${PYTHON_EXEC_PREFIX}/lib/python${PYTHON_VERSION}/site-packages"`])
+ AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
+
+ dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
+
+ AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])
+
+ dnl Run any user-specified action.
+ $2
+ fi
+
+])
+
## this one is commonly used with AM_PATH_PYTHONDIR ...
dnl AM_CHECK_PYMOD(MODNAME [,SYMBOL [,ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]]])
dnl Check if a module containing a given symbol is visible to python.
projects / jack_mixer.git / commitdiff