X-Git-Url: http://sjero.net/git/?p=wget;a=blobdiff_plain;f=GNUmakefile;h=33eb3aa4d5c8fe5bc86f8e19ce88b86e8a855ba7;hp=35c8869de5bb94601a401f26d3117487d29170f0;hb=d6065c927eb23cd674b00ccf88b171c70f1962d0;hpb=b7c6c35be5930695cc64ef2d54d6f421f8511553

diff --git a/GNUmakefile b/GNUmakefile
index 35c8869d..33eb3aa4 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -1,21 +1,22 @@
 # Having a separate GNUmakefile lets me `include' the dynamically
-# generated rules created via Makefile.maint as well as Makefile.maint itself.
+# generated rules created via cfg.mk (package-local configuration)
+# as well as maint.mk (generic maintainer rules).
 # This makefile is used only if you run GNU Make.
 # It is necessary if you want to build targets usually of interest
 # only to the maintainer.
 
-# Copyright (C) 2001, 2003, 2006, 2007 Free Software Foundation, Inc.
-#
-# This program is free software; you can redistribute it and/or modify
+# Copyright (C) 2001, 2003, 2006-2009 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
-# the Free Software Foundation; either version 3 of the License,
-# or (at your option) any later version.
-#
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-#
+
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -29,24 +30,78 @@ else
 SHELL = sh
 endif
 
+# If the user runs GNU make but has not yet run ./configure,
+# give them a diagnostic.
+_have-Makefile := $(shell test -f Makefile && echo yes)
+ifeq ($(_have-Makefile),yes)
+
 # Make tar archive easier to reproduce.
 export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner
 
-# Ran autoreconf and configure or not?
-have-Makefile := $(shell test -f Makefile && echo yes)
-ifeq ($(have-Makefile),yes)
+# Allow the user to add to this in the Makefile.
+ALL_RECURSIVE_TARGETS =
 
 include Makefile
--include $(srcdir)/maint-cfg.mk
+
+# Some projects override e.g., _autoreconf here.
+-include $(srcdir)/cfg.mk
 include $(srcdir)/maint.mk
 
+# Allow cfg.mk to override these.
+_build-aux ?= build-aux
+_autoreconf ?= autoreconf
+
+# 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)))
+  _is-install-target ?= $(filter-out %check, $(filter install%,$(MAKECMDGOALS)))
+  ifneq (,$(_is-dist-target)$(_is-install-target))
+    _curr-ver := $(shell cd $(srcdir) \
+                   && $(_build-aux)/git-version-gen .tarball-version)
+    ifneq ($(_curr-ver),$(VERSION))
+      ifeq ($(_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))
+          _dummy := $(shell $(MAKE) $(AM_MAKEFLAGS) _version)
+        endif
+      endif
+    endif
+  endif
+endif
+
+.PHONY: _version
+_version:
+	cd $(srcdir) && rm -rf autom4te.cache .version && $(_autoreconf)
+
 else
 
 .DEFAULT_GOAL := abort-due-to-no-makefile
+srcdir = .
 
--include ./maint-cfg.mk
+# The package can override .DEFAULT_GOAL to run actions like autoreconf.
+-include ./cfg.mk
 include ./maint.mk
 
+ifeq ($(.DEFAULT_GOAL),abort-due-to-no-makefile)
+$(MAKECMDGOALS): abort-due-to-no-makefile
+endif
+
 abort-due-to-no-makefile:
 	@echo There seems to be no Makefile in this directory.   1>&2
 	@echo "You must run ./configure before running \`make'." 1>&2
@@ -55,6 +110,18 @@ 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