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https://gitlab.alpinelinux.org/alpine/aports.git
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226fe478c2
2 patches from gentoo were also added the segfault breaking unprivileged lxc containers is traced at: http://bugs.alpinelinux.org/issues/4544
43 lines
1.2 KiB
Diff
43 lines
1.2 KiB
Diff
From 2cb54158b80cdbd97ca3b36df83f9255e923ae3f Mon Sep 17 00:00:00 2001
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From: James Le Cuirot <chewi@aura-online.co.uk>
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Date: Sat, 23 Aug 2014 09:46:39 +0100
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Subject: [PATCH] Check size of uid_t and gid_t using AC_CHECK_SIZEOF
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This built-in check is simpler than the previous method and, most
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importantly, works when cross-compiling.
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Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
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---
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configure.in | 14 ++++----------
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1 file changed, 4 insertions(+), 10 deletions(-)
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diff --git a/configure.in b/configure.in
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index 1a3f841..4a4d6d0 100644
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--- a/configure.in
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+++ b/configure.in
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@@ -335,16 +335,10 @@ if test "$enable_subids" != "no"; then
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dnl
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dnl FIXME: check if 32 bit UIDs/GIDs are supported by libc
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dnl
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- AC_RUN_IFELSE([AC_LANG_SOURCE([
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-#include <sys/types.h>
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-int main(void) {
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- uid_t u;
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- gid_t g;
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- return (sizeof u < 4) || (sizeof g < 4);
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-}
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- ])], [id32bit="yes"], [id32bit="no"])
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-
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- if test "x$id32bit" = "xyes"; then
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+ AC_CHECK_SIZEOF([uid_t],, [#include "sys/types.h"])
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+ AC_CHECK_SIZEOF([gid_t],, [#include "sys/types.h"])
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+
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+ if test "$ac_cv_sizeof_uid_t" -ge 4 && test "$ac_cv_sizeof_gid_t" -ge 4; then
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AC_DEFINE(ENABLE_SUBIDS, 1, [Define to support the subordinate IDs.])
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enable_subids="yes"
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else
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--
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2.3.6
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