configure: Enable new warning options added in GCC 6.

-Wnull-dereference is also new in GCC 6 but upon testing it produces far too many false positives to be usable for OVS. Signed-off-by: Ben Pfaff <[email protected]> Acked-by: Andy Zhou <[email protected]>
eyoung-father · Dec 12, 2016 · 905d453 · 905d453
1 parent 398b665
commit 905d453
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/configure.ac b/configure.ac
@@ -162,6 +162,8 @@ OVS_ENABLE_OPTION([-Wswitch-bool])
 OVS_ENABLE_OPTION([-Wlogical-not-parentheses])
 OVS_ENABLE_OPTION([-Wsizeof-array-argument])
 OVS_ENABLE_OPTION([-Wbool-compare])
+OVS_ENABLE_OPTION([-Wshift-negative-value])
+OVS_ENABLE_OPTION([-Wduplicated-cond])
 OVS_ENABLE_OPTION([-Qunused-arguments])
 OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED])
 OVS_CONDITIONAL_CC_OPTION([-Wno-unused-parameter], [HAVE_WNO_UNUSED_PARAMETER])