Seems like just a plain copy won't be enough this time.
OK so mostly we need to introduce composer/xdebug-handler and to include it into composer, it's working locally. Do you want to proxy maintain it Guillaume?
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c2f8dd5d0a2c25cf357cdca706e297306261e01e commit c2f8dd5d0a2c25cf357cdca706e297306261e01e Author: Tomas Mozes <hydrapolic@gmail.com> AuthorDate: 2018-09-07 11:24:05 +0000 Commit: Thomas Deutschmann <whissi@gentoo.org> CommitDate: 2018-09-20 12:00:25 +0000 dev-php/composer: bump to 1.7.2 Closes: https://bugs.gentoo.org/665426 Signed-off-by: Tomáš Mózes <hydrapolic@gmail.com> Package-Manager: Portage-2.3.49, Repoman-2.3.10 dev-php/composer/Manifest | 1 + dev-php/composer/composer-1.7.2.ebuild | 46 ++++++++++++++++++++++++++++++++++ dev-php/composer/files/autoload-r1.php | 28 +++++++++++++++++++++ 3 files changed, 75 insertions(+)