[gentoo-dev] [PATCH v2] vcs-snapshot.eclass: set -o (--no-same-owner) when unpacking, bug #645182

[Sergei Trofimovich <slyfox@gentoo.org>]

Fixes build failures in unprivileged containers like bug #645182:
  Package:    dev-python/pycparser-2.14
  >>> Unpacking source...
  tar: CHANGES: Cannot change ownership to uid 1000, gid 1000: Invalid argument

In such containers uid=0 can't really change file ownership.

Closes: https://bugs.gentoo.org/645182
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
 eclass/vcs-snapshot.eclass | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/eclass/vcs-snapshot.eclass b/eclass/vcs-snapshot.eclass
index 3eff6995fae..2b3f73897ce 100644
--- a/eclass/vcs-snapshot.eclass
+++ b/eclass/vcs-snapshot.eclass
@@ -67,7 +67,8 @@ vcs-snapshot_src_unpack() {
 				# XXX: check whether the directory structure inside is
 				# fine? i.e. if the tarball has actually a parent dir.
 				mkdir "${destdir}" || die
-				tar -C "${destdir}" -x --strip-components 1 \
+				# -o (--no-same-owner) to avoid restoring original owner
+				tar -C "${destdir}" -x -o --strip-components 1 \
 					-f "${DISTDIR}/${f}" || die
 				;;
 			*)
-- 
2.16.0