When "git pull" (or any other operation) brings in a new version of the
gnulib git submodule, you must rerun the autogen.sh script. With this
change, "make" now fails and tells you to run ./autogen.sh, when needed.
* autogen.sh: Maintain a new file, .git-module-status, containing
the current submodule status. If it doesn't exist or its content
is different from what "git submodule status" prints, then run
./bootstrap
* .gitignore: Add .git-module-status
* cfg.mk: Diagnose out of date submodule and fail.
* README-hacking: Update not to mention bootstrap.
* Makefile.am (MAINTAINERCLEANFILES): Add .git-module-status,
so that "make maintainerclean" will remove it.
* bootstrap (modules): Add gnumakefile and maintainer-makefile.
* GNUmakefile: Remove file, now provided by gnulib.
* Makefile.maint: Remove. Replaced by maint.mk from gnulib.
.gitignore: Add GNUmakefile and maint.mk.
* cfg.mk (prev_version_file): Disable this feature.
Setting this to /dev/null avoids an otherwise harmless diagnostic.
Since Makefile.maint will soon come from gnulib's maint.mk,
sync Makefile.maint to have the same contents (modulo minor
things). In syncing it, we have to remove some libvirt-specific
rules. Since we want to keep them (of course), put those in cfg.mk.
* Makefile.maint: Merge from gnulib's maint.mk.
* cfg.mk (sc_avoid_write): New rule. From Makefile.cfg.
(sc_prohibit_strcmp_and_strncmp): Likewise, and rename.
(sc_prohibit_asprintf, sc_prohibit_VIR_ERR_NO_MEMORY): Likewise.
(sc_prohibit_nonreentrant): Likewise.
(sc_prohibit_ctype_h): Likewise.
(sc_TAB_in_indentation, sc_avoid_ctype_macros): Likewise.
(sc_prohibit_virBufferAdd_with_string_literal): Likewise.
(sc_prohibit_gethostby): Likewise.
(sc_libvirt_unmarked_diagnostics): Likewise. Also, rename the
rule, inserting "_libvirt", since this rule is a specialization of
the one in gnulib.
* GNUmakefile: Include cfg.mk, not Makefile.cfg
* .x-sc_prohibit_strcmp_and_strncmp: New file.
* Makefile.am (EXTRA_DIST): Add .x-sc_prohibit_strcmp_and_strncmp
