#11231: GHC's configure script does not honour CC env var -------------------------------------+------------------------------------- Reporter: hvr | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Build System | Version: 7.11 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9983 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by hvr): * related: => #9983 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11231#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#11231: GHC's configure script does not honour CC env var -------------------------------------+------------------------------------- Reporter: hvr | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Build System | Version: 7.11 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9983 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Herbert Valerio Riedel ): In [changeset:"ffc802e8f617d11de9ece7bed438725bde0300b8/ghc" ffc802e8/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="ffc802e8f617d11de9ece7bed438725bde0300b8" Drop Xcode 4.1 hack and fix ignored CC var issue Xcode 4.1 was released back in 2011 for Mac OSX 10.6/10.7. However, OSX 10.7 reached EOL sometime around the end of 2014. So this `--with-gcc-4.2` hack shouldn't be needed anymore. Moreover, this patch changes ./configure to honor the CC env-var again (and thus fix #11231) while giving `--with-gcc=...` a higher priority over `CC=...`. So the following 3 invocations are equivalent now: CC=... ./configure ./configure CC=... ./configure --with-gcc=... Since `--with-{gcc,clang}=...` is a misnomer (as is made apparent by `--with-gcc=clang` or `--with-clang=gcc`), this would give us a neutral and idiomatic way to tell ./configure which C compiler to use. Moreover, `./configure --help` says at the end of its output: Some influential environment variables: CC C compiler command CFLAGS C compiler flags LDFLAGS linker flags, e.g. -L<lib dir> if you have libraries in a nonstandard directory <lib dir> LIBS libraries to pass to the linker, e.g. -l<library> CPPFLAGS (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if you have headers in a nonstandard directory <include dir> CPP C preprocessor Use these variables to override the choices made by `configure' or to help it to find libraries and programs with nonstandard names/locations. Consequently, by honoring CC=... (rather than ignoring it) we increase consistency and reduce user confusion. Ideally, CC=... would become the recommended way to set the C compiler, and `--with-{clang,gcc}=...` would be demoted to legacy aliases. Reviewed By: erikd, bgamari Differential Revision: https://phabricator.haskell.org/D2046 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11231#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#11231: GHC's configure script does not honour CC env var -------------------------------------+------------------------------------- Reporter: hvr | Owner: Type: bug | Status: merge Priority: normal | Milestone: 8.0.1 Component: Build System | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9983 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by rwbarton): I think some of the other variables in that output you mention do not actually work either, so just fixing `CC` doesn't really reduce user confusion overall. This doesn't fix a real bug, so does it really make sense to merge this to 8.0? How much testing have you done in unusual configurations, e.g., cross-compiling? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11231#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#11231: GHC's configure script does not honour CC env var -------------------------------------+------------------------------------- Reporter: hvr | Owner: Type: bug | Status: closed Priority: normal | Milestone: 8.0.1 Component: Build System | Version: 7.10.3 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9983 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * status: merge => closed * resolution: => fixed Comment: Merged as 56eaed1d6c98febf2b3c2f80c0b1e08e13cb8c9f. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11231#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler