Switch to using subdirmk for the top-level

We have incorporated the subdirectories yet...

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

subdirmk: main.mk: clear SUBDIRMK_MAKEFILES MAKEFILE_TEMPLATES

Otherwise, if we reenter main.mk (for exmaple, there are some reasons
why one might want to $(MAKE) a particular target), and someone
foolishly said `export', we inherit SUBDIRMK_MAKEFILES from our
previous self and end up reading everything twice.  That causes things
not to work very well.

While we're here, clear MAKEFILE_TEMPLATES too.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

subdirmk: main.mk: clear SUBDIRMK_MAKEFILES MAKEFILE_TEMPLATES

Otherwise, if we reenter main.mk (for exmaple, there are some reasons
why one might want to $(MAKE) a particular target), and someone
foolishly said `export', we inherit SUBDIRMK_MAKEFILES from our
previous self and end up reading everything twice.  That causes things
not to work very well.

While we're here, clear MAKEFILE_TEMPLATES too.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

subdirmk: Rename MAKEFILES variable

This is very magic to make and the behaviour is very undesirable.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

subdirmk: Rename MAKEFILES variable

This is very magic to make and the behaviour is very undesirable.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

subdirmk: Honour CONFIG_STATUS_OUTPUTS

Principally to support autoheader.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

subdirmk: Honour CONFIG_STATUS_OUTPUTS

Principally to support autoheader.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

subdirmk: Make \& work (!)

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

subdirmk: Make \& work (!)

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Add 'subdirmk/' from commit 'f1789a0ae66174a95c8d629738eae98d40c084ac'

git-subtree-dir: subdirmk
git-subtree-mainline: d212a384b4ef631a876e1ddd3e52fd09e4b1f484
git-subtree-split: f1789a0ae66174a95c8d629738eae98d40c084ac

Two minor docs fixes

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Drop AC_PROG_INSTALL and remove build-aux/install-sh from example

This is just deadweight.  It's rather poor practice too.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

test regeneration after a -included .in file changes

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

test regeneration after a &:-included file (ie a .sd.mk) changes

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Tests: use set -x

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Fix docs typo

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

tests/check: New test script, quite basic

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Transpose directories

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Documentation for regen.mk

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

realclean: Use @_SUBDIRMK_MAKEFILES@

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Drop Perdir.sd.mk from explicit MAKEFILE_TEMPLATES

generate does this itself now.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Documentation for usual.mk.in

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Documentation for clean.sd.mk and cdeps.sd.mk

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Move knowledge of DEPFILES into cdeps.sd.mk

No overall functional change.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Introduce CDEPS_CFLAGS so without cdeps.sd.mk you don't get .*.d

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

New &# feature

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

More docs updates

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

Merge branch 'master' of https://git.distorted.org.uk/~markw/subdirmk

subdirmk/*: Some simple whitespace cleanups

Zap trailing whitespace, and spaces-followed-by-tabs.  This commit is
empty in `git show -b'.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>

subdirmk/generate: Make `FORCE-ALWAYS-RUN' be `.PHONY'

Otherwise `touch FORCE-ALWAYS-RUN' stops your build from working, which
seems a shame, even though nobody should ever want to do this.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>

subdirmk/usual.mk.in: Fix `VPATH' setting

This file isn't processed through `generate', so `&' doesn't mean
anything special.

Use `$(top_srcdir)' here because we can rely on that being established
by `main.mk'.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>

subdirmk/regen.mk.in: Trim `$(srcdir)/' prefix from output makefile names

This doesn't make a difference if you're doing in-tree builds, of course.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>

subdirmk/generate: Supply default target if none given in command line

If you just run `make' then `$(MAKECMDGOALS)' is empty, so we get the
default target of `main.mk'.  Nothing is set up by `usual.mk', so we
end up with `$(srcdir)/configure' established by `regen.mk'.

Instead, propagate `all' to the `main.mk' makefile.  Maybe this should
be configurable, though I don't think that'll be very useful in real
life.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>

subdirmk/autogen.sh: Remove myself as copyright holder

I had nothing to do with this.  My original proof-of-concept suggested
that developers use `autoreconf' to bootstrap the working tree.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>

more docs changes

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

more docs fixes

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

more docs

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

minor docs change

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

abbreviate some copyright notices

No change to legal effect.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

add copyright and licence notices to other files

In many cases I copied bits from mdw's originals, so they are all
potentially mdw's.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

add copyright and licence notices to example .[ch] files

Checked with mdw on irc that this was his intent.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

add legal information including clear copyright grant

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

.gitignore: adjust some comments

introduce some boilerplate files

fix stub Makefile to use MAKECMDGOALS

otherwise if you give multiple goals it would reenter main.mk

actually reject missing .sd.mk files when appropriate

deps .*.d

docs

add missing ignore

better generation of MAKEFILE_TEMPLATES (dedupe)

do not demand \W after CAPS and lc

make TARGETS make :: rules

change filenames

wip docs

always run regenerate from config.status

it is too hard to figure out when to do this, and it is fast

wip docs, before rename .mk.in

make Perdir.mk.in optional

further refactor filter_subdir_mk, replace loop with calls, nfc

further refactor filter_subdir_mk, moving $srcdir, nfc

refactor filter_subdir_mk, breaking out $pi, nfc

wip docs

sort regen

various stuff into submakefiles

wip docs

move much into usual.mk.in

check right thing in config_targets

&:include feature

$enoent_ok and GEN filehandle (nfc)

buffering_output feature (nfc)

break out process_input_mk (nfc)

run config.status with selective tags, better, docs

run config.status with selective tags

WIP attempt to run config.status with selective tags

Does not work right now...

clarify comment

fix out of tree builds

fixes

docs

docs

&! new esc can be anything

tidying

tidying

tidying

tidying

tidying

dep on subdirmk.ac

CONFIGURE_ACS

Perdir dep

cleaning

WIP

WIP

WIP REORG

WORKS

DOES NOT WORK

TEST MULTI OUTPUT THING

WIP

wip

WIP

wip

WIP

wip