#15096: GHC fails to execute gcc on Windows when unicode character is in the path -------------------------------------+------------------------------------- Reporter: nh2 | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Build System | Version: 8.0.2 Keywords: | Operating System: Windows Architecture: | Type of failure: GHC doesn't work Unknown/Multiple | at all Test Case: | Blocked By: Blocking: | Related Tickets: #15021 Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- This happens when the location of gcc is under a path with non-ASCII directory in it: {{{ PS C:\Users\日\stack-test> & 'C:\Users\日 \AppData\Local\Programs\stack\x86_64-windows\ghc-8.0.2\bin\ghc.exe' -no- user-package-db .\Main.hs [1 of 1] Compiling Main ( Main.hs, Main.o ) <no location info>: error: Warning: Couldn't figure out C compiler information! Make sure you're using GNU gcc, or clang Unable to start C:\Users\?\AppData\Local\Programs\stack\x86_64-windows\ghc-8.0.2\mingw\bin/realgcc.exe (error code: 123) `gcc.exe' failed in phase `Assembler'. (Exit code: 1) }}} Tested with ghc 8.0.2 on Windows Server 2016 (same setup as in #15021). This was discovered as part of the effort to make Haskell tooling work well for users with non-ASCII user names: https://github.com/commercialhaskell/stack/issues/3988 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15096 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler