In newer distros (ubuntu 15.10, fedora rawhide) the binutils
ar uses the new D flag per default to build deterministic
binaries.
Without this patch the following warning is issued, when
building btrfs-progs:
[AR] libbtrfs.a
/usr/bin/ar: `u' modifier ignored since `D' is the default (see `U')
For libtrfs.a performance benefit of the u option can be neglected,
so drop the u option and silence the warning.
In the future one might want to explicitly add the D option anyway.
Signed-off-by: Arnd Hannemann <arnd@xxxxxxxxxx>
---
Makefile.in | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile.in b/Makefile.in
index 665f83c..514a76f 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -199,7 +199,7 @@ $(libs_shared): $(libbtrfs_objects) $(lib_links) send.h
$(libs_static): $(libbtrfs_objects)
@echo " [AR] $@"
- $(Q)$(AR) cru libbtrfs.a $(libbtrfs_objects)
+ $(Q)$(AR) cr libbtrfs.a $(libbtrfs_objects)
$(lib_links):
@echo " [LN] $@"
--
2.5.0
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