# It is necessary if you want to build targets usually of interest
# only to the maintainer.
-# Copyright (C) 2001, 2003, 2006-2008 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003, 2006-2011 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# Make tar archive easier to reproduce.
export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner
+# Allow the user to add to this in the Makefile.
+ALL_RECURSIVE_TARGETS =
+
include Makefile
# Some projects override e.g., _autoreconf here.
# Allow cfg.mk to override these.
_build-aux ?= build-aux
-_autoreconf ?= autoreconf
+_autoreconf ?= autoreconf -v
# Ensure that $(VERSION) is up to date for dist-related targets, but not
# for others: rerunning autoreconf and recompiling everything isn't cheap.
_have-git-version-gen := \
$(shell test -f $(srcdir)/$(_build-aux)/git-version-gen && echo yes)
ifeq ($(_have-git-version-gen)0,yes$(MAKELEVEL))
- _is-dist-target = $(filter-out %clean, \
- $(filter maintainer-% dist% alpha beta major,$(MAKECMDGOALS)))
- ifneq (,$(_is-dist-target))
- _curr-ver := $(shell cd $(srcdir) && ./$(_build-aux)/git-version-gen \
- $(srcdir)/.tarball-version)
+ _is-dist-target ?= $(filter-out %clean, \
+ $(filter maintainer-% dist% alpha beta stable,$(MAKECMDGOALS)))
+ _is-install-target ?= $(filter-out %check, $(filter install%,$(MAKECMDGOALS)))
+ ifneq (,$(_is-dist-target)$(_is-install-target))
+ _curr-ver := $(shell cd $(srcdir) \
+ && $(_build-aux)/git-version-gen \
+ .tarball-version \
+ $(git-version-gen-tag-sed-script))
ifneq ($(_curr-ver),$(VERSION))
- $(info INFO: running autoreconf for new version string: $(_curr-ver))
- _dummy := $(shell cd $(srcdir) && rm -rf autom4te.cache .version \
- && $(_autoreconf))
+ ifeq ($(_curr-ver),UNKNOWN)
+ $(info WARNING: unable to verify if $(VERSION) is the correct version)
+ else
+ ifneq (,$(_is-install-target))
+ # GNU Coding Standards state that 'make install' should not cause
+ # recompilation after 'make all'. But as long as changing the version
+ # string alters config.h, the cost of having 'make all' always have an
+ # up-to-date version is prohibitive. So, as a compromise, we merely
+ # warn when installing a version string that is out of date; the user
+ # should run 'autoreconf' (or something like 'make distcheck') to
+ # fix the version, 'make all' to propagate it, then 'make install'.
+ $(info WARNING: version string $(VERSION) is out of date;)
+ $(info run '$(MAKE) _version' to fix it)
+ else
+ $(info INFO: running autoreconf for new version string: $(_curr-ver))
+GNUmakefile: _version
+ touch GNUmakefile
+ endif
+ endif
endif
endif
endif
+.PHONY: _version
+_version:
+ cd $(srcdir) && rm -rf autom4te.cache .version && $(_autoreconf)
+ $(MAKE) $(AM_MAKEFLAGS) Makefile
+
else
.DEFAULT_GOAL := abort-due-to-no-makefile
endif
# Tell version 3.79 and up of GNU make to not build goals in this
-# directory in parallel. This is necessary in case someone tries to
-# build multiple targets on one command line.
+# directory in parallel, in case someone tries to build multiple
+# targets, and one of them can cause a recursive target to be invoked.
+
+# Only set this if Automake doesn't provide it.
+AM_RECURSIVE_TARGETS ?= $(RECURSIVE_TARGETS:-recursive=) \
+ $(RECURSIVE_CLEAN_TARGETS:-recursive=) \
+ dist distcheck tags ctags
+
+ALL_RECURSIVE_TARGETS += $(AM_RECURSIVE_TARGETS)
+
+ifneq ($(word 2, $(MAKECMDGOALS)), )
+ifneq ($(filter $(ALL_RECURSIVE_TARGETS), $(MAKECMDGOALS)), )
.NOTPARALLEL:
+endif
+endif