+# -----------------------------------------------------------------------------
+#
+# (c) 2009 The University of Glasgow
+#
+# This file is part of the GHC build system.
+#
+# To understand how the build system works and how to modify it, see
+# http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture
+# http://hackage.haskell.org/trac/ghc/wiki/Building/Modifying
+#
+# -----------------------------------------------------------------------------
ifeq "$(wildcard distrib/)" ""
else
-# The problem we need to solve is as follows.
-#
-# GNU make supports included Makefiles, and it is clever enough to try
-# to update those Makefiles when they are out-of-date or missing. It
-# first reads all the Makefiles, and then tries to build each one if
-# it is out-of-date, using the rules in the Makefiles themselves.
-# When it has brought all the Makefiles up-to-date, it restarts itself
-# to read the newly-generated Makefiles.
-#
-# This works fine, unless there are dependencies *between* the
-# Makefiles. For example in the GHC build, for each package we have a
-# package-data.mk file which is generated by the ghc-cabal program,
-# and we have a .depend file. The .depend file cannot be generated
-# until package-data.mk has been generated and make has been restarted
-# to read in its contents, because it is the package-data.mk file that
-# tells us which modules are in the package. But make always makes
-# all the Makefiles before restarting - it doesn't take into account a
-# dependency between Makefiles and restart itself earlier.
-
-# Consider the following makefile:
-
-# --------------------
-# all :
-#
-# include inc1.mk
-#
-# inc1.mk : Makefile
-# echo "X = C" >$@
-#
-# include inc2.mk
-#
-# inc2.mk : inc1.mk
-# echo "Y = $(X)" >$@
-# --------------------
-
-# Now try it:
-#
-# $ make -f fail.mk
-# fail.mk:3: inc1.mk: No such file or directory
-# fail.mk:8: inc2.mk: No such file or directory
-# echo "X = C" >inc1.mk
-# echo "Y = " >inc2.mk
-# make: Nothing to be done for `all'.
-
-# make built both inc1.mk and inc2.mk without restarting itself
-# between the two (even though we added a dependency on inc1.mk from
-# inc2.mk).
-#
-# The solution we adopt in the GHC build system is essentially this:
-
-# --------------------
-# PHASE = 0
-#
-# ifeq "$(PHASE)" "0"
-# all :
-# $(MAKE) PHASE=1
-# else
-# all :
-# endif
-#
-# -include inc1.mk
-#
-# inc1.mk : Makefile
-# echo "X = C" >$@
-#
-# ifneq "$(PHASE)" "0"
-# include inc2.mk
-#
-# inc2.mk : inc1.mk
-# echo "Y = $(X)" >$@
-# endif
-#
-# clean :
-# rm -f inc1.mk inc2.mk
-# --------------------
-
-# That is, every time make is invoked, we force it to update inc1.mk
-# and then restart. In the GHC build system we need to divide the
-# build into 4 phases in fact, with a restart between each phase. See
-# ghc.mk for the details on what happens in each phase and why.
-
default : all
@:
+ifneq "$(findstring clean,$(MAKECMDGOALS))" ""
+-include mk/config.mk
+else
+include mk/config.mk
+ifeq "$(ProjectVersion)" ""
+$(error Please run ./configure first)
+endif
+endif
+
+include mk/custom-settings.mk
+
+# If the package ghc.mk files are missing, generate them. This means that
+# repeating 'make maintainer-clean' works.
+PACKAGE_MK=libraries/base/ghc.mk
+$(PACKAGE_MK):
+ sh boot-pkgs
+
# No need to update makefiles for these targets:
-REALGOALS=$(filter-out clean clean_% distclean maintainer-clean show,$(MAKECMDGOALS))
+REALGOALS=$(filter-out framework-pkg clean clean_% distclean maintainer-clean show,$(MAKECMDGOALS))
# 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: $(PACKAGE_MK)
@echo "===--- updating makefiles phase 0"
$(MAKE) -r --no-print-directory -f ghc.mk phase=0 just-makefiles
@echo "===--- updating makefiles phase 1"
@echo "===--- finished updating makefiles"
$(MAKE) -r --no-print-directory -f ghc.mk $@
-binary-dist:
+binary-dist: $(PACKAGE_MK)
rm -f bindist-list
$(MAKE) -r --no-print-directory -f ghc.mk bindist BINDIST=YES
$(MAKE) -r --no-print-directory -f ghc.mk binary-dist
-clean distclean maintainer-clean:
+clean distclean maintainer-clean: $(PACKAGE_MK)
$(MAKE) -r --no-print-directory -f ghc.mk $@
test ! -d testsuite || $(MAKE) -C testsuite $@
-$(filter clean_%, $(MAKECMDGOALS)) : clean_% :
+$(filter clean_%, $(MAKECMDGOALS)) : clean_% : $(PACKAGE_MK)
$(MAKE) -r --no-print-directory -f ghc.mk $@
-show:
+show: $(PACKAGE_MK)
$(MAKE) -r --no-print-directory -f ghc.mk $@
+ifeq "$(darwin_TARGET_OS)" "1"
+framework-pkg:
+ $(MAKE) -C distrib/MacOS $@
+endif
+
# If the user says 'make A B', then we don't want to invoke two
# instances of the rule above in parallel:
.NOTPARALLEL:
endif
-