[Buildroot] [PATCH 1/1] systemd: fix build with gcc <= 4.7

[Peter Korsgaard]

>>>>> "Fabrice" == Fabrice Fontaine <fontaine.fabrice at gmail.com> writes:

 > Pass -Werror=shadow in args of cc.compiles in meson.build otherwise test
 > will always succeed

 > Fixes:
 >  - http://autobuild.buildroot.org/results/ffd71c473d3b29618c18cd2e04705370266696f2

 > Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>

Committed after extending the commit message to explain the details
about how gcc 4.8 changed the behaviour of -Werror-shadow, thanks.

-- 
Bye, Peter Korsgaard