X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Makefile;h=a6e35876911338cb0cb5abf17ef349ec319e44a2;hb=aded94ea8b2cf40a3858011cd1454ff23c9246db;hp=f51b9a8f7e1026d021a179d9bce785e584d50031;hpb=de4cc55e97ca2011ab3889a9e2dab9a745839a66;p=ghc-hetmet.git diff --git a/Makefile b/Makefile index f51b9a8..a6e3587 100644 --- a/Makefile +++ b/Makefile @@ -32,6 +32,11 @@ else default : all @: +# For help, type 'make help' +.PHONY: help +help : + @cat MAKEHELP + ifneq "$(findstring clean,$(MAKECMDGOALS))" "" -include mk/config.mk else @@ -44,12 +49,26 @@ endif include mk/custom-settings.mk # No need to update makefiles for these targets: -REALGOALS=$(filter-out bootstrapping-files framework-pkg clean clean_% distclean maintainer-clean show,$(MAKECMDGOALS)) +REALGOALS=$(filter-out bootstrapping-files framework-pkg clean clean_% distclean maintainer-clean show help,$(MAKECMDGOALS)) + +# On Solaris, the builtin test doesn't support -nt, you have to use +# /usr/bin/test. On MSYS, however, /usr/bin/test does not exist. How +# nice. +TEST=$(if $(wildcard /usr/bin/test),/usr/bin/test,test) + +# configure touches certain files even if they haven't changed. This +# can mean a lot of unnecessary recompilation after a re-configure, so +# here we cache the old versions of these files so we can restore the +# timestamps. +%.old: % + @set -x && [ -f $@ ] && cmp -s $< $@ || cp -p $< $@ + touch -r $@ $< + # NB. not the same as saying '%: ...', which doesn't do the right thing: # it does nothing if we specify a target that already exists. .PHONY: $(REALGOALS) -$(REALGOALS) all: +$(REALGOALS) all: mk/config.mk.old mk/project.mk.old compiler/ghc.cabal.old @echo "===--- updating makefiles phase 0" $(MAKE) -r --no-print-directory -f ghc.mk phase=0 just-makefiles ifneq "$(OMIT_PHASE_1)" "YES"