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| author | Erik de Castro Lopo <erik.decastrolopo@ambiata.com> | 2017-04-05 05:53:46 +1000 |
|---|---|---|
| committer | Erik de Castro Lopo <erikd@mega-nerd.com> | 2017-04-05 05:53:47 +1000 |
| commit | 7e340c2bbf4a56959bd1e95cdd1cfdb2b7e537c2 (patch) | |
| tree | 0f330ad348b5100f1a21312e7c91e43966789ec8 /rts/ghc.mk | |
| parent | 5e968f9261b798222a845ef38a54621b45013678 (diff) | |
| download | haskell-7e340c2bbf4a56959bd1e95cdd1cfdb2b7e537c2.tar.gz | |
Enable new warning for fragile/incorrect CPP #if usage
The C code in the RTS now gets built with `-Wundef` and the Haskell code
(stages 1 and 2 only) with `-Wcpp-undef`. We now get warnings whereever
`#if` is used on undefined identifiers.
Test Plan: Validate on Linux and Windows
Reviewers: austin, angerman, simonmar, bgamari, Phyx
Reviewed By: bgamari
Subscribers: thomie, snowleopard
Differential Revision: https://phabricator.haskell.org/D3278
Diffstat (limited to 'rts/ghc.mk')
| -rw-r--r-- | rts/ghc.mk | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/rts/ghc.mk b/rts/ghc.mk index b756d942ca..e24e199598 100644 --- a/rts/ghc.mk +++ b/rts/ghc.mk @@ -267,7 +267,10 @@ WARNING_OPTS += -Waggregate-return WARNING_OPTS += -Wpointer-arith WARNING_OPTS += -Wmissing-noreturn WARNING_OPTS += -Wnested-externs -WARNING_OPTS += -Wredundant-decls +WARNING_OPTS += -Wredundant-decls +ifeq "$(GccLT46)" "NO" +WARNING_OPTS += -Wundef +endif # These ones are hard to avoid: #WARNING_OPTS += -Wconversion |