#13217: configure script uses different CFLAGS from the actual build -------------------------------------+------------------------------------- Reporter: dobenour | Owner: Type: task | Status: new Priority: normal | Milestone: Component: Build System | Version: 8.1 Keywords: autoconf | Operating System: Unknown/Multiple Architecture: | Type of failure: Building GHC Unknown/Multiple | failed Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- `configure` fails to set `CFLAGS` to the value that will actually be used. This can result in checks giving wrong results. I discovered this when working on Phab:D2996, where it led to a build failure using Clang. Note that `-Werror` cannot be used during most checks in `configure`, but is necessary for `FP_CHECK_FLAG`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13217 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler