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[SCM] GNU Libtool branch, master, updated. v2.4.2.444-31-g13aa364
From: |
Peter Rosin |
Subject: |
[SCM] GNU Libtool branch, master, updated. v2.4.2.444-31-g13aa364 |
Date: |
Fri, 09 May 2014 21:13:36 +0000 |
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- Log -----------------------------------------------------------------
commit 13aa364c0c66f9f6b41f98772d0735039ac974a1
Author: Peter Rosin <address@hidden>
Date: Tue May 6 10:11:34 2014 +0200
libtool: fix nm test for MSYS/MinGW
The check for the -B option of nm does not work as intended on MSYS/MinGW.
MSYS converts /dev/null to the DOW/Windows "equivanent" special file NUL,
but the MinGW nm treats this file as any empty file. This means that
you might end up with some fallback nm instead of the desired nm. This
is not normally a problem, but if one nm is built without lto support, it
starts to matter.
Fixes sr #108558, reported by LRN.
* m4/libtool.m4 (LT_PATH_NM) [MSYS]: Use a non-existant file instead of
/dev/null when checking if nm supports -B.
Signed-off-by: Peter Rosin <address@hidden>
-----------------------------------------------------------------------
Summary of changes:
m4/libtool.m4 | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 0454030..320d8b3 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -3509,8 +3509,13 @@ else
# Adding the 'sed 1q' prevents false positives on HP-UX, which says:
# nm: unknown option "B" ignored
# Tru64's nm complains that /dev/null is an invalid object file
- case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
- */dev/null* | *'Invalid file or object type'*)
+ # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
+ case $build_os in
+ mingw*) lt_bad_file=conftest.nm/nofile ;;
+ *) lt_bad_file=/dev/null ;;
+ esac
+ case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in
+ *$lt_bad_file* | *'Invalid file or object type'*)
lt_cv_path_NM="$tmp_nm -B"
break 2
;;
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