#13315: Compile broken on new MSYS2 -------------------------------------+------------------------------------- Reporter: Phyx- | Owner: (none) Type: bug | Status: new Priority: high | Milestone: Component: Build System | Version: 8.0.1 Keywords: | Operating System: Windows Architecture: | Type of failure: Building GHC Unknown/Multiple | failed Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- February comes with a major change in behavior for MSYS2/Cygwin. Tools such as awk/sed etc now use binary mode unless on a text mount: https://cygwin.com/ml/cygwin-announce/2017-02/msg00036.html This is problematic because GHC etc only use the underlying OS to determine how to output line endings. As such we output \r\n but in sed et al $ will no longer match line endings. Which means out scripts are currently broken. The build will fail with errors such as {{{ [00:09:33][Step 2/6] utils/hp2ps/dist/build/.depend.c_asm:2: *** missing separator. Stop. [00:09:33][Step 2/6] make: *** [Makefile:125: all] Error 2 }}} This is because the `--make-depends` output from GHC will write a file using `\r\n` newlines which `sed` et al will no longer match with `$`. This change is pretty catastrophic in that it also applies to piped data from stdout/stderr. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13315 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler