Blame SOURCES/0031-fix-removal-of-cpu-machine-links-on-mingw-msys.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Andrey Borzenkov <arvidjaar@gmail.com>
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Date: Sat, 18 Jan 2014 22:48:04 +0400
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Subject: [PATCH] fix removal of {cpu,machine} links on mingw/msys
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At least on Windows 2003 using "ln -s dir1 dir2" in msys shell succeeds,
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but results in what looks like hard link. Subsequent "rm -f dir2" (e.g.
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during second config.status invocation) fails. Check that we also can
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remove link to directory.
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Make it more clear in message that we are checking "ln -s".
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---
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 ChangeLog    | 5 +++++
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 acinclude.m4 | 6 +++---
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 2 files changed, 8 insertions(+), 3 deletions(-)
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diff --git a/ChangeLog b/ChangeLog
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index cff9386d3d2..c3bfa9fcb1b 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,3 +1,8 @@
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+2014-01-18  Andrey Borzenkov <arvidjaar@gmail.com>
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+
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+	* acinclude.m4 (grub_CHECK_LINK_DIR): Check that we can also remove
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+	symbolic link to directory. It fails in Msys shell on Windows 2003.
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+
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 2014-01-18  Vladimir Serbinenko  <phcoder@gmail.com>
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 	* Makefile.am (default_payload.elf): Add modules
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diff --git a/acinclude.m4 b/acinclude.m4
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index 32d5477d100..b2bb88d838e 100644
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--- a/acinclude.m4
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+++ b/acinclude.m4
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@@ -418,15 +418,15 @@ else
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 [fi]
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 ])
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-dnl Check if ln can handle directories properly (mingw).
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+dnl Check if ln -s can handle directories properly (mingw).
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 AC_DEFUN([grub_CHECK_LINK_DIR],[
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-AC_MSG_CHECKING([whether ln can handle directories properly])
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+AC_MSG_CHECKING([whether ln -s can handle directories properly])
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 [mkdir testdir 2>/dev/null
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 case $srcdir in
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 [\\/$]* | ?:[\\/]* ) reldir=$srcdir/include/grub/util ;;
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     *) reldir=../$srcdir/include/grub/util ;;
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 esac
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-if ln -s $reldir testdir/util 2>/dev/null ; then]
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+if ln -s $reldir testdir/util 2>/dev/null && rm -f testdir/util 2>/dev/null ; then]
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   AC_MSG_RESULT([yes])
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   [link_dir=yes
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 else