[Buildroot] [PATCH 1/1] zeromq: fix static build with libatomic

[Thomas Petazzoni]

Hello,

On Thu, 13 Sep 2018 20:24:19 +0200, Fabrice Fontaine wrote:
> Second patch added support to link with -latomic if needed however using
> LDFLAGS doesn't work when statically linking because LDFLAGS is added
> before LIBS
> 
> Detection of atomic fails with:
> 
> configure:23230: /accts/mlweber1/instance-2/output/host/bin/sparc-linux-g++ -o conftest -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -static -static -pedantic -Werror -Wall -D_GNU_SOURCE -D_REENTRANT -D_THREAD_SAFE -Wno-long-long -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -static -latomic conftest.cpp -lrt -lpthread -lstdc++ >&5
> /tmp/ccgrvVTg.o: In function `main':
> conftest.cpp:(.text.startup+0x10): undefined reference to `__atomic_fetch_add_4'
> collect2: error: ld returned 1 exit status
> 
> So use LIBS instead of LDFLAGS
> 
> As second patch was already merged upstream, a new PR was sent:
> https://github.com/zeromq/libzmq/pull/3250
> 
> Fixes:
>  - http://autobuild.buildroot.net/results/c471d6b1061a8516f7772735e471db68a32965aa
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
> ---
>  ...cinclude.m4-check-if-latomic-is-needed.patch | 17 +++++++++--------
>  1 file changed, 9 insertions(+), 8 deletions(-)

Applied to master, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com