[Git][ghc/ghc][master] ghc/mk: don't build gmp packages for BIGNUM_BACKEND=native

[Marge Bot]

 Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC


Commits:
39c89862 by Sergei Trofimovich at 2020-07-28T20:54:50-04:00
ghc/mk: don't build gmp packages for BIGNUM_BACKEND=native

Before this change make-based `BIGNUM_BACKEND=native` build was failing as:

```
x86_64-pc-linux-gnu-gcc: error: libraries/ghc-bignum/gmp/objs/*.o: No such file or directory
```

This happens because ghc.mk was pulling in gmp-dependent
ghc-bignum library unconditionally. The change avoid building
ghc-bignum.

Bug: https://gitlab.haskell.org/ghc/ghc/-/issues/18437
Signed-off-by: Sergei Trofimovich <slyfox at gentoo.org>

- - - - -


1 changed file:

- ghc.mk


Changes:

=====================================
ghc.mk
=====================================
@@ -656,7 +656,9 @@ BUILD_DIRS += $(patsubst %, libraries/%, $(PACKAGES_STAGE1))
 BUILD_DIRS += $(patsubst %, libraries/%, $(filter-out $(PACKAGES_STAGE1),$(PACKAGES_STAGE0)))
 endif
 
+ifeq "$(BIGNUM_BACKEND)" "gmp"
 BUILD_DIRS += libraries/ghc-bignum/gmp
+endif
 BUILD_DIRS += utils/haddock
 BUILD_DIRS += utils/haddock/doc
 BUILD_DIRS += compiler



View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/39c89862161bf488a6aca9372cbb67690f436ce7

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/39c89862161bf488a6aca9372cbb67690f436ce7
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