#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 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- `./configure --help` tells us that: {{{ ... 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. Report bugs to <glasgow-haskell-bugs@haskell.org>. }}} However, neither - `CC=clang-3.8 ./configure`, nor - `./configure CC=clang-3.8` has any effect. `./configure` keeps using the `/usr/bin/gcc` in `$PATH`. The only invocation that has the desired effect is - `./configure --with-gcc=clang-3.8` However, this is utterly surprising and confusing to experienced developers who are used to Autoconf `./configure` scripts adhering to the conventions regarding `CC`, and contradicts the `--help` message. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11231> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler