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dnl Functions for Python bindings
dnl
dnl Version: 20240418
dnl Function to check if the python binary is available
dnl "python${PYTHON_VERSION} python python# python#.#"
AC_DEFUN([AX_PROG_PYTHON],
[AS_IF(
[test "x${PYTHON_VERSION}" != x],
[ax_python_progs="python${PYTHON_VERSION}"],
[ax_python_progs="python python3 python3.12 python3.11 python3.10 python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 python3.2 python3.1 python3.0 python2 python2.7 python2.6 python2.5"])
AC_CHECK_PROGS(
[PYTHON],
[$ax_python_progs])
AS_IF(
[test "x${PYTHON}" != x],
[ax_prog_python_version=`${PYTHON} -c "import sys; sys.stdout.write('%d.%d' % (sys.version_info[[0]], sys.version_info[[1]]))" 2>/dev/null`;
ax_prog_python_platform=`${PYTHON} -c "import sys; sys.stdout.write(sys.platform)" 2>/dev/null`;
AC_SUBST(
[PYTHON_PLATFORM],
[$ax_prog_python_platform])
],
[AC_MSG_ERROR(
[Unable to find python])
])
AC_SUBST(
[PYTHON],
[$PYTHON])
])
dnl Function to check if the python-config binary is available
dnl "python${PYTHON_VERSION}-config python-config"
AC_DEFUN([AX_PROG_PYTHON_CONFIG],
[AS_IF(
[test "x${PYTHON_CONFIG}" = x && test "x${PYTHON_VERSION}" != x],
[AC_CHECK_PROGS(
[PYTHON_CONFIG],
[python${PYTHON_VERSION}-config])
])
AS_IF(
[test "x${PYTHON_CONFIG}" = x],
[AC_CHECK_PROGS(
[PYTHON_CONFIG],
[python-config python3-config python3.12-config python3.11-config python3.10-config python3.9-config python3.8-config python3.7-config python3.6-config python3.5-config python3.4-config python3.3-config python3.2-config python3.1-config python3.0-config python2-config python2.7-config python2.6-config python2.5-config])
])
AS_IF(
[test "x${PYTHON_CONFIG}" = x],
[AC_MSG_ERROR(
[Unable to find python-config])
])
AC_SUBST(
[PYTHON_CONFIG],
[$PYTHON_CONFIG])
])
dnl Function to detect if a Python build environment is available
AC_DEFUN([AX_PYTHON_CHECK],
[AX_PROG_PYTHON
AX_PROG_PYTHON_CONFIG
AS_IF(
[test "x${PYTHON_CONFIG}" != x],
[dnl Check for Python includes
PYTHON_INCLUDES=`${PYTHON_CONFIG} --includes 2>/dev/null`;
AC_MSG_CHECKING(
[for Python includes])
AC_MSG_RESULT(
[$PYTHON_INCLUDES])
dnl Check for Python libraries
PYTHON_LDFLAGS=`${PYTHON_CONFIG} --ldflags 2>/dev/null`;
AC_MSG_CHECKING(
[for Python libraries])
AC_MSG_RESULT(
[$PYTHON_LDFLAGS])
dnl For CygWin and MinGW add the -no-undefined linker flag
AS_CASE(
[$build],
[*-*-cygwin*],[PYTHON_LDFLAGS="${PYTHON_LDFLAGS} -no-undefined"],
[*-*-mingw*],[PYTHON_LDFLAGS="${PYTHON_LDFLAGS} -no-undefined"],
[*-*-msys*],[PYTHON_LDFLAGS="${PYTHON_LDFLAGS} -no-undefined"],
[*],[])
dnl Check for the existence of Python.h
BACKUP_CPPFLAGS="${CPPFLAGS}"
CPPFLAGS="${CPPFLAGS} ${PYTHON_INCLUDES}"
AC_CHECK_HEADERS(
[Python.h],
[ac_cv_header_python_h=yes],
[ac_cv_header_python_h=no])
CPPFLAGS="${BACKUP_CPPFLAGS}"
])
AS_IF(
[test "x${ac_cv_header_python_h}" != xyes],
[ac_cv_enable_python=no],
[ac_cv_enable_python=${ax_prog_python_version}
AC_SUBST(
[PYTHON_CPPFLAGS],
[$PYTHON_INCLUDES])
AC_SUBST(
[PYTHON_LDFLAGS],
[$PYTHON_LDFLAGS])
dnl Check for Python prefix
AS_IF(
[test "x${ac_cv_with_pyprefix}" = x || test "x${ac_cv_with_pyprefix}" = xno],
[ax_python_prefix="\${prefix}"],
[ax_python_prefix=`${PYTHON_CONFIG} --prefix 2>/dev/null`])
AC_SUBST(
[PYTHON_PREFIX],
[$ax_python_prefix])
dnl Check for Python exec-prefix
AS_IF(
[test "x${ac_cv_with_pyprefix}" = x || test "x${ac_cv_with_pyprefix}" = xno],
[ax_python_exec_prefix="\${exec_prefix}"],
[ax_python_exec_prefix=`${PYTHON_CONFIG} --exec-prefix 2>/dev/null`])
AC_SUBST(
[PYTHON_EXEC_PREFIX],
[$ax_python_exec_prefix])
dnl Check for Python library directory
ax_python_pythondir_suffix=`${PYTHON} -c "import sys; import distutils.sysconfig; sys.stdout.write(distutils.sysconfig.get_python_lib(0, 0, prefix=''))" 2>/dev/null`;
AS_IF(
[test "x${ac_cv_with_pythondir}" = x || test "x${ac_cv_with_pythondir}" = xno],
[AS_IF(
[test "x${ac_cv_with_pyprefix}" = x || test "x${ac_cv_with_pyprefix}" = xno],
[ax_python_pythondir="${ax_python_prefix}/${ax_python_pythondir_suffix}"],
[ax_python_pythondir=`${PYTHON} -c "import sys; import distutils.sysconfig; sys.stdout.write(distutils.sysconfig.get_python_lib()) " 2>/dev/null`])],
[ax_python_pythondir=$ac_cv_with_pythondir])
AC_SUBST(
[pythondir],
[$ax_python_pythondir])
dnl Check for Python platform specific library directory
ax_python_pyexecdir_suffix=`${PYTHON} -c "import sys; import distutils.sysconfig; sys.stdout.write(distutils.sysconfig.get_python_lib(1, 0, prefix=''))" 2>/dev/null`;
ax_python_library_dir=`${PYTHON} -c "import sys; import distutils.sysconfig; sys.stdout.write(distutils.sysconfig.get_python_lib(True)) " 2>/dev/null`;
AS_IF(
[test "x${ac_cv_with_pyprefix}" = x || test "x${ac_cv_with_pyprefix}" = xno],
[ax_python_pyexecdir="${ax_python_exec_prefix}/${ax_python_pyexecdir_suffix}"],
[ax_python_pyexecdir=$ax_python_library_dir])
AC_SUBST(
[pyexecdir],
[$ax_python_pyexecdir])
AC_SUBST(
[PYTHON_LIBRARY_DIR],
[$ax_python_pyexecdir_suffix])
AC_SUBST(
[PYTHON_PACKAGE_DIR],
[$ax_python_library_dir])
])
])
dnl Function to determine the prefix of pythondir
AC_DEFUN([AX_PYTHON_CHECK_PYPREFIX],
[AX_COMMON_ARG_WITH(
[pyprefix],
[pyprefix],
[use `python-config --prefix' to determine the prefix of pythondir instead of --prefix],
[no],
[no])
])
dnl Function to detect if to enable Python
AC_DEFUN([AX_PYTHON_CHECK_ENABLE],
[AX_PYTHON_CHECK_PYPREFIX
AX_COMMON_ARG_ENABLE(
[python],
[python],
[build Python bindings],
[no])
AX_COMMON_ARG_WITH(
[pythondir],
[pythondir],
[use to specify the Python directory (pythondir)],
[no],
[no])
AS_IF(
[test "x${ac_cv_enable_python}" != xno],
[AX_PYTHON_CHECK])
AM_CONDITIONAL(
HAVE_PYTHON,
[test "x${ac_cv_enable_python}" != xno])
AM_CONDITIONAL(
HAVE_PYTHON_TESTS,
[test "x${ac_cv_enable_python}" != xno])
])
])
|
