diff options
Diffstat (limited to 'eclass/epunt-cxx.eclass')
-rw-r--r-- | eclass/epunt-cxx.eclass | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/eclass/epunt-cxx.eclass b/eclass/epunt-cxx.eclass new file mode 100644 index 000000000000..30802af340b0 --- /dev/null +++ b/eclass/epunt-cxx.eclass @@ -0,0 +1,47 @@ +# Copyright 1999-2017 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +# @ECLASS: epunt-cxx.eclass +# @MAINTAINER: +# base-system@gentoo.org +# @BLURB: A function to punt C++ compiler checks from autoconf +# @DESCRIPTION: +# Support for punting C++ compiler checks from autoconf (based +# on ELT-patches). + +if [[ -z ${_EPUNT_CXX_ECLASS} ]]; then + +# eutils for eqawarn +inherit eutils + +DEPEND=">=app-portage/elt-patches-20170317" + +# @FUNCTION: epunt_cxx +# @USAGE: [dir to scan] +# @DESCRIPTION: +# Many configure scripts wrongly bail when a C++ compiler could not be +# detected. If dir is not specified, then it defaults to ${S}. +# +# https://bugs.gentoo.org/73450 +epunt_cxx() { + local dir=$1 + [[ -z ${dir} ]] && dir=${S} + ebegin "Removing useless C++ checks" + local f p any_found + while IFS= read -r -d '' f; do + for p in "${EPREFIX}/usr/share/elt-patches"/nocxx/*.patch ; do + if patch --no-backup-if-mismatch -p1 "${f}" "${p}" >/dev/null ; then + any_found=1 + break + fi + done + done < <(find "${dir}" -name configure -print0) + + if [[ -z ${any_found} ]]; then + eqawarn "epunt_cxx called unnecessarily (no C++ checks to punt)." + fi + eend 0 +} + +_EPUNT_CXX_ECLASS=1 +fi #_EPUNT_CXX_ECLASS |