git-compat-util: work around for access(X_OK) under root
On AIX, access(X_OK) may succeed when run as root even if the execution isn't possible. This behavior is allowed by POSIX which says: ... for a process with appropriate privileges, an implementation may indicate success for X_OK even if execute permission is not granted to any user. It can lead hook programs to have their execution refused: git commit -m content fatal: cannot exec '.git/hooks/pre-commit': Permission denied Add NEED_ACCESS_ROOT_HANDLER in order to use an access helper function. It checks with stat if any executable flags is set when the current user is root. Signed-off-by: NClément Chigot <clement.chigot@atos.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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compat/access.c
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