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| author | Herbert Valerio Riedel <hvr@gnu.org> | 2016-04-16 18:12:09 +0200 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2016-04-16 18:12:46 +0200 |
| commit | 865602e0beb8e30ea1e1edf7db90f24088badb9e (patch) | |
| tree | bbda9ab6adebd8b41a95f4f2c4760aab9c04b34e /includes | |
| parent | f4e659121960eb81d5478f0b20d4cf6f4c0ed0d9 (diff) | |
| download | haskell-865602e0beb8e30ea1e1edf7db90f24088badb9e.tar.gz | |
Rework CC/CC_STAGE0 handling in `configure.ac`
Rather than using the non-standard/idiomatic `--with-{gcc,clang}=...`
scheme use the `CC=...` style scheme.
The basic idea is to have Autoconf's CC/CFLAG/CPPFLAG apply to
stage{1,2,3}, while having a separate _STAGE0 set of env-vars
denote the bootstrap-toolchain flags/programs.
This should be simpler, less confusing, and somewhat more in line with
Autoconf's idioms (allowing us to reuse more of Autoconf rather than
(re)inventing our own confusing non-standard m4 macros to do stuff that
Autoconf could almost do already for us)
Morever, expose CC_STAGE0 as a so-called "precious" variable.
So now we can better control which bootstrapping gcc is used
(by default the one used by the stage0 ghc, unless CC_STAGE0 is
overriden)
```
Some influential environment variables:
CC_STAGE0 C compiler command (bootstrap)
CC C compiler command
CFLAGS C compiler flags
...
Use these variables to override the choices made by `configure' or to
help it to find libraries and programs with nonstandard names/locations.
```
Test Plan: I've tested that cross-compiling with
`--target=powerpc-linux-gnu` still works, and tried a few variants of
settting `CC=` and `CC_STAGE0=`; `./validate` passed as well
Reviewers: erikd, austin, bgamari, simonmar
Reviewed By: simonmar
Subscribers: Phyx, thomie
Differential Revision: https://phabricator.haskell.org/D2078
Diffstat (limited to 'includes')
| -rw-r--r-- | includes/ghc.mk | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/includes/ghc.mk b/includes/ghc.mk index 31b26508f6..d08ecfbc07 100644 --- a/includes/ghc.mk +++ b/includes/ghc.mk @@ -177,7 +177,7 @@ includes_GHCCONSTANTS_HASKELL_EXPORTS = includes/dist-derivedconstants/header/GH INSTALL_LIBS += $(includes_GHCCONSTANTS_HASKELL_VALUE) -DERIVE_CONSTANTS_FLAGS += --gcc-program "$(WhatGccIsCalled)" +DERIVE_CONSTANTS_FLAGS += --gcc-program "$(CC)" DERIVE_CONSTANTS_FLAGS += $(addprefix --gcc-flag$(space),$(includes_CC_OPTS) -fcommon) DERIVE_CONSTANTS_FLAGS += --nm-program "$(NM)" ifneq "$(OBJDUMP)" "" |