+# Targets: all, stage1, stage2, stage3
+
+DIST_CLEAN_FILES += config.cache config.status
+
+extraclean::
+ $(RM) -rf autom4te.cache
+
+#
+# If you've ended up using an in-place version of Happy,
+# make sure it gets built early on.
+#
+ifeq "$(HAPPY)" "$(FPTOOLS_TOP_ABS)/happy/src/happy-inplace"
+build :: $(FPTOOLS_TOP_ABS)/happy/src/happy-inplace
+
+$(FPTOOLS_TOP_ABS)/happy/src/happy-inplace : glafp-utils
+ $(MAKE) -C happy boot all
+endif
+
+# Build all projects that we know about
+build ::
+ @case '${MFLAGS}' in *-[ik]*) x_on_err=0;; *-r*[ik]*) x_on_err=0;; *) x_on_err=1;; esac; \
+ for i in $(SUBDIRS); do \
+ if [ -d $$i ]; then \
+ $(MAKE) -C $$i boot; \
+ if [ $$? -eq 0 -o $$x_on_err -eq 0 ] ; then true; else exit 1; fi; \
+ $(MAKE) -C $$i all; \
+ if [ $$? -eq 0 -o $$x_on_err -eq 0 ] ; then true; else exit 1; fi; \
+ fi; \
+ done
+
+ifeq "$(findstring ghc, $(SUBDIRS))" "ghc"
+
+stage1 : build
+
+stage2 :
+ $(MAKE) -C ghc/compiler boot stage=2
+ $(MAKE) -C ghc/compiler stage=2
+
+stage3 :
+ $(MAKE) -C ghc/compiler boot stage=3
+ $(MAKE) -C ghc/compiler stage=3
+
+bootstrap : bootstrap2
+bootstrap2 : stage1 stage2
+bootstrap3 : stage1 stage2 stage3
+
+all :: bootstrap
+
+# We want to install the stage 2 bootstrapped compiler by default, but we let
+# the user override this by saying 'make install stage=1', for example.
+ifeq "$(stage)" ""
+INSTALL_STAGE = stage=2
+else
+INSTALL_STAGE =
+endif
+
+else # Not building GHC
+
+all :: build
+
+INSTALL_STAGE =
+
+endif
+
+boot ::
+ @echo "Please use \`make all' only from the top-level, or \`make boot' followed"
+ @echo "by \`make all' in an individual project subdirectory (ghc, hslibs etc.)."
+
+install ::
+ @case '${MFLAGS}' in *-[ik]*) x_on_err=0;; *-r*[ik]*) x_on_err=0;; *) x_on_err=1;; esac; \
+ for i in $(filter-out $(ProjectsDontInstall), $(SUBDIRS)); do \
+ if [ -d $$i ]; then \
+ $(MAKE) -C $$i $(INSTALL_STAGE) install; \
+ if [ $$? -eq 0 -o $$x_on_err -eq 0 ] ; then true; else exit 1; fi; \
+ fi; \
+ done
+
+install-docs ::
+ @case '${MFLAGS}' in *-[ik]*) x_on_err=0;; *-r*[ik]*) x_on_err=0;; *) x_on_err=1;; esac; \
+ for i in $(filter-out $(ProjectsDontInstall), $(SUBDIRS)); do \
+ if [ -d $$i ]; then \
+ $(MAKE) -C $$i $(INSTALL_STAGE) install-docs; \
+ if [ $$? -eq 0 -o $$x_on_err -eq 0 ] ; then true; else exit 1; fi; \
+ fi; \
+ done
+
+# -----------------------------------------------------------------------------