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authorErik de Castro Lopo <erik.decastrolopo@ambiata.com>2017-04-05 05:53:46 +1000
committerBen Gamari <ben@smart-cactus.org>2017-04-28 22:35:04 -0400
commite5b3492f23c2296d0d8221e1787ee585331f726e (patch)
treee1d6797dadc265db7f97615ff71c65c3d83db9c0 /libraries
parent6d14c1485cb570cbd183bcdc0f858d9a6dc1eb31 (diff)
downloadhaskell-e5b3492f23c2296d0d8221e1787ee585331f726e.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 'libraries')
-rw-r--r--libraries/ghci/GHCi/ObjLink.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/libraries/ghci/GHCi/ObjLink.hs b/libraries/ghci/GHCi/ObjLink.hs
index d7dbdd3373..3adb7ebaf9 100644
--- a/libraries/ghci/GHCi/ObjLink.hs
+++ b/libraries/ghci/GHCi/ObjLink.hs
@@ -187,7 +187,7 @@ cLeadingUnderscore = False
#endif
isWindowsHost :: Bool
-#if mingw32_HOST_OS
+#ifdef mingw32_HOST_OS
isWindowsHost = True
#else
isWindowsHost = False