[gentoo-python] Re: [PATCH] Support python_get_library_path().

[Mike Gilbert <floppym@gentoo.org>]

On Sun, Feb 3, 2013 at 6:57 PM, Michał Górny <mgorny@gentoo.org> wrote:
> Needed for dev-python/shiboken.
> ---
>  gx86/eclass/python-utils-r1.eclass | 43 ++++++++++++++++++++++++++++++++++++++
>  1 file changed, 43 insertions(+)
>
> diff --git a/gx86/eclass/python-utils-r1.eclass b/gx86/eclass/python-utils-r1.eclass
> index b425302..5facf33 100644
> --- a/gx86/eclass/python-utils-r1.eclass
> +++ b/gx86/eclass/python-utils-r1.eclass
> @@ -124,6 +124,18 @@ _python_impl_supported() {
>  # /usr/include/python2.6
>  # @CODE
>
> +# @ECLASS-VARIABLE: PYTHON_LIBPATH
> +# @DESCRIPTION:
> +# The path to Python library.
> +#
> +# Set and exported on request using python_export().
> +# Valid only for CPython.
> +#
> +# Example value:
> +# @CODE
> +# /usr/lib64/libpython2.6.so
> +# @CODE
> +
>  # @ECLASS-VARIABLE: PYTHON_PKG_DEP
>  # @DESCRIPTION:
>  # The complete dependency on a particular Python package as a string.
> @@ -219,6 +231,22 @@ python_export() {
>                                 export PYTHON_INCLUDEDIR=${EPREFIX}${dir}
>                                 debug-print "${FUNCNAME}: PYTHON_INCLUDEDIR = ${PYTHON_INCLUDEDIR}"
>                                 ;;
> +                       PYTHON_LIBPATH)
> +                               local libname
> +                               case "${impl}" in
> +                                       python*)
> +                                               libname=lib${impl}
> +                                               ;;
> +                                       *)
> +                                               die "${EPYTHON} lacks a dynamic library"
> +                                               ;;
> +                               esac
> +
> +                               local path=${EPREFIX}/usr/$(get_libdir)
> +
> +                               export PYTHON_LIBPATH=${path}/${libname}$(get_libname)
> +                               debug-print "${FUNCNAME}: PYTHON_LIBPATH = ${PYTHON_LIBPATH}"
> +                               ;;
>                         PYTHON_PKG_DEP)
>                                 local d
>                                 case ${impl} in
> @@ -310,6 +338,21 @@ python_get_includedir() {
>         echo "${PYTHON_INCLUDEDIR}"
>  }
>
> +# @FUNCTION: python_get_library_path
> +# @USAGE: [<impl>]
> +# @DESCRIPTION:
> +# Obtain and print the Python library path for the given implementation.
> +# If no implementation is provided, ${EPYTHON} will be used.
> +#
> +# Please note that this function can be used with CPython only. Use
> +# in another implementation will result in a fatal failure.
> +python_get_library_path() {
> +       debug-print-function ${FUNCNAME} "${@}"
> +
> +       python_export "${@}" PYTHON_LIBPATH
> +       echo "${PYTHON_LIBPATH}"
> +}
> +
>  # @FUNCTION: _python_rewrite_shebang
>  # @INTERNAL
>  # @USAGE: [<EPYTHON>] <path>...
> --
> 1.8.1.2
>

Do it.