build: allow specifying prerequisite flags when checking flags
authorUri Simchoni <uri@samba.org>
Tue, 21 Nov 2017 18:53:30 +0000 (20:53 +0200)
committerAndrew Bartlett <abartlet@samba.org>
Wed, 22 Nov 2017 09:20:21 +0000 (10:20 +0100)
commit34b4be091fe83ac0eec9e2d697b54bfa5e7823b6
treeb1dced199837596d16214b7402ff75074fe654d6
parent90508f46c0a57a632a64300d97c636112d3e8fb7
build: allow specifying prerequisite flags when checking flags

In gcc, "-Wformat-security" is ignored unless "-Wformat" is also
specified. This patch allow adding a "prerequisite flag" to a flag
we're testing during configuration.

Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
buildtools/wafsamba/samba_autoconf.py