https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69104
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Known to fail| |4.9.3, 5.1.0, 6.0
--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
Thanks for looking into it! (I've changed the Status to NEW since you
confirmed the absence of the warning.)
After some searching and reading it seems like there are a couple of problems
then:
1) the known system header/preprocessor bug is preventing the GCC from issuing
the warning (it's enabled by default and doesn't require -Wall or -Wextra)
2) the -Winvalid-memory-model option that controls the warning is undocumented
in the GCC manual
Let me submit a patch for (2). Based on discussions in Bugzilla, fixing (1)
sounds like it will be a tougher nut to crack. (I wonder how many other
problems this bug masks.)
