[Buildroot] [PATCH] vtun: fix gcc5 build

[Peter Korsgaard]

>>>>> "Baruch" == Baruch Siach <baruch at tkos.co.il> writes:

 > Add -std=gnu89 to CFLAGS to keep pre gcc5 inline function symbols visibility
 > rules.

 > Fixes:
 > http://autobuild.buildroot.net/results/a7e/a7e684174b90a852318a7a8bf41c4f477d159d56/
 > http://autobuild.buildroot.net/results/ab0/ab01f8e0467e85322c63b81bb7e84fd251e5d556/
 > http://autobuild.buildroot.net/results/117/117a68bf648b050dabed8088d1165c1d7d9301f0/

 > and more.

 > Signed-off-by: Baruch Siach <baruch at tkos.co.il>
 > ---
 >  package/vtun/vtun.mk | 2 ++
 >  1 file changed, 2 insertions(+)

 > diff --git a/package/vtun/vtun.mk b/package/vtun/vtun.mk
 > index 2b64ab9efc69..884ebc666431 100644
 > --- a/package/vtun/vtun.mk
 > +++ b/package/vtun/vtun.mk
 > @@ -14,4 +14,6 @@ VTUN_CONF_OPTS = \
 >  	--with-lzo-headers=$(STAGING_DIR)/usr/include/lzo \
 >  	--with-lzo-lib=$(STAGING_DIR)/usr/lib
 
 > +VTUN_CONF_ENV = CFLAGS="$(TARGET_CFLAGS) -std=gnu89"

Committed after adding a comment explaining why this is needed, thanks.

-- 
Bye, Peter Korsgaard