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| author | Ian Lynagh <igloo@earth.li> | 2011-08-28 12:23:04 +0100 |
|---|---|---|
| committer | Ian Lynagh <igloo@earth.li> | 2011-08-28 12:23:04 +0100 |
| commit | 12646a9c0f748da67098d9da3f357a756fd7df7c (patch) | |
| tree | 534b24e66e7909a9e922874093c715988341be6a /rules/build-package-data.mk | |
| parent | 3a6120a279aa290e98a42f4c955ac5a1de781cec (diff) | |
| download | haskell-12646a9c0f748da67098d9da3f357a756fd7df7c.tar.gz | |
By default, be lax about dependencies on GHC
There are a number of things which technically depend on GHC (e.g. if
ghc changes then Haskell files may be compiled differently, or Cabal
packages may be configured differently). However, in practice, having
a real dependency on GHC is just a pain: We normally don't want to
spend time recompiling other things while we're working on the
compiler, and even if we did, GHC will normally decide compilation
isn't needed anyway. So by default we use order-only dependencies on
GHC, i.e. GHC must exist, but if it's newer than other targets then
rebuilding is not necessary.
Diffstat (limited to 'rules/build-package-data.mk')
| -rw-r--r-- | rules/build-package-data.mk | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/rules/build-package-data.mk b/rules/build-package-data.mk index 9a66d1beb1..6755a2cd9b 100644 --- a/rules/build-package-data.mk +++ b/rules/build-package-data.mk @@ -76,7 +76,7 @@ $1/$2/build/autogen/cabal_macros.h : $1/$2/package-data.mk # This rule configures the package, generates the package-data.mk file # for our build system, and registers the package for use in-place in # the build tree. -$1/$2/package-data.mk : $$(GHC_CABAL_INPLACE) $$($1_$2_GHC_PKG_DEP) $1/$$($1_PACKAGE).cabal $$(wildcard $1/configure) $$($1_$2_HC_CONFIG_DEP) +$1/$2/package-data.mk : $$(GHC_CABAL_INPLACE) $$($1_$2_GHC_PKG_DEP) $1/$$($1_PACKAGE).cabal $$(wildcard $1/configure) $$(LAX_DEPS_FOLLOW) $$($1_$2_HC_CONFIG_DEP) "$$(GHC_CABAL_INPLACE)" configure --with-ghc="$$($1_$2_HC_CONFIG)" --with-ghc-pkg="$$($1_$2_GHC_PKG)" $$($1_CONFIGURE_OPTS) $$($1_$2_CONFIGURE_OPTS) -- $2 $1 ifeq "$$($1_$2_PROG)" "" ifneq "$$($1_$2_REGISTER_PACKAGE)" "NO" |