I am trying to bump sys-process/audit and it has python3 support now but its configure needs python3-config. On my system only pythonX.Y-config exist not the more generic pythonX-config. I could obviously patch configure.ac and use python_get_* from python-utils-r1 but I'd rather not have to. Excerpt from build.log: checking whether to create python bindings... no checking whether to create python3 bindings... investigating checking for python3-config... no Python3 bindings were selected but python3-config was not found. Please ensure that it's installed or pass --without-python3 to ./configure Relevant section of configure.ac: AC_MSG_CHECKING(whether to create python3 bindings) AC_ARG_WITH(python3, AS_HELP_STRING([--with-python3],[enable building python3 bindings]), use_python3=$withval, use_python3=auto) if test x$use_python3 = xno ; then AC_MSG_RESULT(no) else AC_MSG_RESULT(investigating) AC_PATH_PROG([use_python3], [python3-config], [no]) if test ${use_python3} = no ; then if test ${withval} = yes ; then echo "Python3 bindings were selected but python3-config was not found." echo "Please ensure that it's installed or pass --without-python3 to ./configure" exit 1 fi echo "Python3 bindings will NOT be built" else echo "Python3 bindings WILL be built" use_python3=yes AC_PATH_PROG([PYTHON3], [python3], [no]) if test "$PYTHON3" == "no" ; then echo "The python3 program was not found in the search path. Please ensure" echo "that it is installed and its directory is included in the search path or" echo "pass --without-python3 to ./configure." exit 1 fi PYTHON3_CFLAGS=`python3-config --cflags 2> /dev/null` PYTHON3_LIBS=`python3-config --libs 2> /dev/null` PYTHON3_INCLUDES=`python3-config --includes 2> /dev/null` AC_SUBST([PYTHON3_PREFIX], ['${prefix}']) AC_SUBST([PYTHON3_EXEC_PREFIX], ['${exec_prefix}']) PYTHON3_DIR=`$PYTHON3 -c "import distutils.sysconfig; \ print(distutils.sysconfig.get_python_lib(0,0,prefix='$PYTHON3_PREFIX'))"` PYTHON3_EXECDIR=`$PYTHON3 -c "import distutils.sysconfig; \ print(distutils.sysconfig.get_python_lib(1,0,prefix='$PYTHON3_EXEC_PREFIX'))"` AC_SUBST(PYTHON3_CFLAGS) AC_SUBST(PYTHON3_LIBS) AC_SUBST(PYTHON3_INCLUDES) AC_SUBST(python3dir, $PYTHON3_DIR) AC_SUBST(py3execdir, $PYTHON3_EXECDIR) fi fi AM_CONDITIONAL(USE_PYTHON3, test ${use_python3} = "yes")
The following patch makes it work for me: RCS file: /var/cvsroot/gentoo-x86/eclass/python-utils-r1.eclass,v retrieving revision 1.83 diff -u -B -r1.83 python-utils-r1.eclass --- python-utils-r1.eclass 4 Jul 2015 15:26:17 -0000 1.83 +++ python-utils-r1.eclass 22 Jul 2015 09:45:27 -0000 @@ -863,6 +863,7 @@ # CPython-specific if [[ ${EPYTHON} == python* ]]; then ln -s "${PYTHON}-config" "${workdir}"/bin/python-config || die + ln -s "${PYTHON}-config" "${workdir}"/bin/python${pyver}-config || die # Python 2.6+. ln -s "${PYTHON/python/2to3-}" "${workdir}"/bin/2to3 || die log excerpt using the patch: checking whether to create python bindings... no checking whether to create python3 bindings... investigating checking for python3-config... /var/tmp/portage/sys-process/audit-2.4.3/temp/python3.4/bin/python3-config Python3 bindings WILL be built checking for python3... /var/tmp/portage/sys-process/audit-2.4.3/temp/python3.4/bin/python3
For some reason I dont get yet, the symlink works for pythonX.Y-config but not for pythonX-config python-config. the prefix is wrong. interestingly, python-config is wrong for python3.4 but 2.7 is fine. Perhaps because 3.4 has venv stuff built in? One way to fix might be to make a small bash script to just exec /usr/bin/python3.4-config instead of symlink, but I wonder if this indicates a bigger underlying problem? I made the test ebuild output some stuff: python_configure() { for pc in python-config python3.4-config python3-config python2.7-config python2-config; do elog "which ${pc}: $(which ${pc})" elog "${pc} --prefix: $(${pc} --prefix)" elog "${pc} --includes: $(${pc} --includes)" elog "${pc} --libs: $(${pc} --libs)" done } python_foreach_impl python_configure * python3_4: running python_configure * which python-config: /var/tmp/portage/sys-process/audit-2.4.3/temp/python3.4/bin/python-config * python-config --prefix: /var/tmp/portage/sys-process/audit-2.4.3/temp/python3.4 * python-config --includes: -I/var/tmp/portage/sys-process/audit-2.4.3/temp/python3.4/include/python3.4 -I/var/tmp/portage/sys-process/audit-2.4.3/temp/python3.4/include/python3.4 * python-config --libs: -lpthread -ldl -lutil -lm -lpython3.4 * which python3.4-config: /usr/bin/python3.4-config * python3.4-config --prefix: /usr * python3.4-config --includes: -I/usr/include/python3.4 -I/usr/include/python3.4 * python3.4-config --libs: -lpthread -ldl -lutil -lm -lpython3.4 * which python3-config: /var/tmp/portage/sys-process/audit-2.4.3/temp/python3.4/bin/python3-config * python3-config --prefix: /var/tmp/portage/sys-process/audit-2.4.3/temp/python3.4 * python3-config --includes: -I/var/tmp/portage/sys-process/audit-2.4.3/temp/python3.4/include/python3.4 -I/var/tmp/portage/sys-process/audit-2.4.3/temp/python3.4/include/python3.4 * python3-config --libs: -lpthread -ldl -lutil -lm -lpython3.4 * which python2.7-config: /usr/bin/python2.7-config * python2.7-config --prefix: /usr * python2.7-config --includes: -I/usr/include/python2.7 -I/usr/include/python2.7 * python2.7-config --libs: -lpython2.7 -lpthread -ldl -lutil -lm * python2_7: running python_configure * which python-config: /var/tmp/portage/sys-process/audit-2.4.3/temp/python2.7/bin/python-config * python-config --prefix: /usr * python-config --includes: -I/usr/include/python2.7 -I/usr/include/python2.7 * python-config --libs: -lpython2.7 -lpthread -ldl -lutil -lm * which python3.4-config: /usr/bin/python3.4-config * python3.4-config --prefix: /usr * python3.4-config --includes: -I/usr/include/python3.4 -I/usr/include/python3.4 * python3.4-config --libs: -lpthread -ldl -lutil -lm -lpython3.4 * which python2.7-config: /usr/bin/python2.7-config * python2.7-config --prefix: /usr * python2.7-config --includes: -I/usr/include/python2.7 -I/usr/include/python2.7 * python2.7-config --libs: -lpython2.7 -lpthread -ldl -lutil -lm * which python2-config: /var/tmp/portage/sys-process/audit-2.4.3/temp/python2.7/bin/python2-config * python2-config --prefix: /usr * python2-config --includes: -I/usr/include/python2.7 -I/usr/include/python2.7 * python2-config --libs: -lpython2.7 -lpthread -ldl -lutil -lm
Could you open a separate bug for the python-config, please? It seems too important to hide beneath adding pythonX-config. We should also add pythonY and pythonY-config via nonsupp=() that are going to explicitly forbid ebuilds from using python3 when 2.* is selected, and the other way around.
27 Jul 2015; Michał Górny <mgorny@gentoo.org> python-utils-r1.eclass: python_wrapper_setup(): wrap pythonN-config as well as suggested by PEP and required by some applications, bug #555594.
