适用于python2和python3的AM_PATH_PYTHON [英] AM_PATH_PYTHON for python2 and python3

问题描述

我正在使用automake的宏 AM_PATH_PYTHON 查找 pythondir 变量.

I am using automake's macro AM_PATH_PYTHON to find the pythondir variable.

到目前为止，我一直在不带参数的情况下调用它，在Ubuntu上默认为python 2.7.现在，我还想为 python3.x (特别是3.3)构建它.

Till now I have been calling it without arguments which defaults to python 2.7 on Ubuntu. Now I also want to build it for python3.x (3.3 specifically).

有没有一种方法可以调用 AM_PATH_PYTHON([3])以获取 python3.3 ，并使用 AC_SUBST 在特定于 python3 的变量中，然后为 python2 调用 AM_PATH_PYTHON([2]).

Is there a way where I can call AM_PATH_PYTHON([3]) to get python3.3, store all the generated variables using AC_SUBST in a python3 specific variable and then call AM_PATH_PYTHON([2]) for python2.

我正在这样做

AM_PATH_PYTHON([3])
AC_SUBST(PYTHON3,$PYTHON)
AC_SUBST(HAVE_PYTHON3,$HAVE_PYTHON)
AC_SUBST(PYTHON3_VERSION,$PYTHON_VERSION)
AC_SUBST(PYTHON3_PREFIX,$PYTHON_PREFIX)
AC_SUBST(PYTHON3_EXEC_PREFIX,$PYTHON_EXEC_PREFIX)
AC_SUBST(PYTHON3_PLATFORM,$PYTHON_PLATFORM)
AC_SUBST(python3dir,$pythondir)
AC_SUBST(pkgpython3dir,$pkgpythondir)
AC_SUBST(py3execdir,$pyexecdir)
AC_SUBST(pkgpy3execdir,$pkgpyexecdir)

unset PYTHON
unset HAVE_PYTHON
unset PYTHON_VERSION
unset PYTHON_PREFIX
unset PYTHON_EXEC_PREFIX
unset PYTHON_PLATFORM
unset pythondir
unset pkgpythondir
unset pyexecdir
unset pkgpyexecdir
AM_PATH_PYTHON([2])

在完成所有这些操作之后，第二个 AM_PATH_PYTHON 仍未重写变量.我知道这些是宏，但是应该有一种方法可以做到这一点.Makefile显示

Even after doing all these the second AM_PATH_PYTHON is not rewriting the variables. I know these are macros, but there should be a way to do this. The Makefile shows

py3execdir = ${exec_prefix}/lib/python3.3/site-packages
pyexecdir = ${exec_prefix}/lib/python3.3/site-packages
python3dir = ${prefix}/lib/python3.3/site-packages
pythondir = ${prefix}/lib/python3.3/site-packages

推荐答案

如果最终使用了重写宏路线，则可能需要使用变量

If you end up going the rewrite-the-macro route, you might want to make use of the variable _AM_PYTHON_INTERPRETER_LIST to write wrapper macros AM_PATH_PYTHON2 and AM_PATH_PYTHON3 that just set _AM_PYTHON_INTERPRETER_LIST and call AM_PATH_PYTHON with an extra suffix argument.

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