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From e08af84191b2a8ca226e1c72c27c63dcf8ac8c27 Mon Sep 17 00:00:00 2001
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From: Sami Kerola <kerolasa@iki.fi>
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Date: Sun, 28 Jul 2013 22:11:16 +0100
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Subject: [PATCH] setarch: prefer preprocessor rather than autotools check
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It seems to be pointless to spend time in ./configure phase when
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preprocessor has to perform #ifndef check anyway.
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[kzak@redhat.com: -
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Note that on RHEL-7 glibc' <sys/personality.h> does not contain the
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same set of the flags like <linux/personality.h>. We need to include
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glibc version dues to syscall, so it seems better make our macro
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fallbacks more robust.]
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Addresses: http://bugzilla.redhat.com/show_bug.cgi?id=1690102
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Upstream: http://github.com/karelzak/util-linux/commit/f29a3d1868c847ae41bc681db58bd087fc9f941d
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Signed-off-by: Sami Kerola <kerolasa@iki.fi>
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---
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configure.ac | 12 ------------
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sys-utils/setarch.c | 22 +++++++++++-----------
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2 files changed, 11 insertions(+), 23 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index 4c5d098e6..49de6c6b3 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -260,18 +260,6 @@ AC_CHECK_MEMBERS([struct termios.c_line],,,
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AC_CHECK_MEMBERS([struct stat.st_mtim.tv_nsec],,,
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[#include <sys/stat.h>])
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-AC_CHECK_DECLS([
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- UNAME26,
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- ADDR_NO_RANDOMIZE,
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- FDPIC_FUNCPTRS,
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- MMAP_PAGE_ZERO,
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- ADDR_COMPAT_LAYOUT,
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- READ_IMPLIES_EXEC,
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- ADDR_LIMIT_32BIT,
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- WHOLE_SECONDS,
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- STICKY_TIMEOUTS,
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- ADDR_LIMIT_3GB], [], [], [#include <linux/personality.h>])
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-
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
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[[
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#ifdef HAVE_SYS_SWAP_H
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diff --git a/sys-utils/setarch.c b/sys-utils/setarch.c
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index 0e45cfef9..9863cb298 100644
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--- a/sys-utils/setarch.c
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+++ b/sys-utils/setarch.c
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@@ -56,37 +56,37 @@ enum {
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} while(0)
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-#if !HAVE_DECL_UNAME26
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+#ifndef UNAME26
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# define UNAME26 0x0020000
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#endif
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-#if !HAVE_DECL_ADDR_NO_RANDOMIZE
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+#ifndef ADDR_NO_RANDOMIZE
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# define ADDR_NO_RANDOMIZE 0x0040000
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#endif
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-#if !HAVE_DECL_FDPIC_FUNCPTRS
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+#ifndef FDPIC_FUNCPTRS
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# define FDPIC_FUNCPTRS 0x0080000
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#endif
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-#if !HAVE_DECL_MMAP_PAGE_ZERO
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+#ifndef MMAP_PAGE_ZERO
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# define MMAP_PAGE_ZERO 0x0100000
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#endif
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-#if !HAVE_DECL_ADDR_COMPAT_LAYOUT
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+#ifndef ADDR_COMPAT_LAYOUT
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# define ADDR_COMPAT_LAYOUT 0x0200000
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#endif
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-#if !HAVE_DECL_READ_IMPLIES_EXEC
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+#ifndef READ_IMPLIES_EXEC
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# define READ_IMPLIES_EXEC 0x0400000
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#endif
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-#if !HAVE_DECL_ADDR_LIMIT_32BIT
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+#ifndef ADDR_LIMIT_32BIT
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# define ADDR_LIMIT_32BIT 0x0800000
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#endif
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-#if !HAVE_DECL_SHORT_INODE
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+#ifndef SHORT_INODE
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# define SHORT_INODE 0x1000000
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#endif
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-#if !HAVE_DECL_WHOLE_SECONDS
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+#ifndef WHOLE_SECONDS
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# define WHOLE_SECONDS 0x2000000
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#endif
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-#if !HAVE_DECL_STICKY_TIMEOUTS
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+#ifndef STICKY_TIMEOUTS
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# define STICKY_TIMEOUTS 0x4000000
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#endif
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-#if !HAVE_DECL_ADDR_LIMIT_3GB
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+#ifndef ADDR_LIMIT_3GB
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# define ADDR_LIMIT_3GB 0x8000000
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#endif
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--
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2.21.0
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