crossdev, emerge-wrapper: request EAPI=7 on eclass imports

Today ::gentoo dropped support for EAPI=0 from multilib.eclass
and toolchain-funcs.eclass. Due to lack of error handling on
crossdev side srossdev derived wrong environment for $CTARGET
(and mostly fell back to CHOST).

This caused at best failing early on gcc-stage1 build. At worst
crossdev installed libraries into a wrong $(get_libdir), installed
symlinks from wrong host and other disasters.

Previous crossdev commits make crossdev crash earlier instead of
generating wrong environment. This commit allows dropping EAI=0
support for eclasses eventually.

Reported-by: Marco Scardovi (scardracs)
Bug: https://bugs.gentoo.org/797367
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/crossdev b/crossdev
index 619603f..57ffbb5 100755
--- a/crossdev
+++ b/crossdev
@@ -983,7 +983,7 @@ load_multilib_env() {
 	for p in ${SEARCH_OVERLAYS} ${MAIN_REPO_PATH} ; do
 		p+="/eclass/multilib.eclass"
 		if [[ -e ${p} ]] ; then
-			. "${p}"
+			EAPI=7 . "${p}"
 			break
 		fi
 	done