todo

LINUX下的源码工具,可自己分析,或者直接装在系统上作为应用

* Run automake before libtool.  It will report an error but
  still won't put the file into the disty.  This is wrong.
  From Mark H Wilkinson <[e-mail]>

* AM_CONFIG_HEADER might generate the wrong stamp file names
  when given multiple headers.  Write a test.

* Currently don't correctly handle multiple inputs to a config header.

* header stamp files still in wrong dirs.
  stamp-h.in must be in dir with h.in file
  stamp-h must be in dir with output file

* foo=bar
  if cond
  foo += joe
  endif
  ... this ought to work.  The fix is probably complicated

* `distcheck' and `dist' should depend on `all'

* Document why putting @FOO@ in _SOURCES doesn't work.

* Add code to generate foo-config script like gnome, gtk

* right now automake sets `TAR' when automake is configured
  this loses in some situations.
  however, checking for it in every configure.in also seems lame.
  probably should just give in on this; meanwhile people can
  override TAR themselves.

* `DEFS += foo' won't work.
  That's because DEFS is defined in header-vars.am, which is read
  after the user's Makefile.am.
  This will be a problem for any macro defined internally
    [ fixing this will probabl fix the nasty `exeext redefines
      foo_PROGRAMS' hack that is in there right now ]

* document user namespace for macro/target names
  adopt some conventions and use uniformly
    [ this is a good thing for the rewrite ]

* make distcheck uses directories like `=build'.
  Some (very rare) POSIX systems don't support `=' in filenames.
  If this ever becomes a problem, fix it

* distclean must remove config.status
  can't this cause problems for maintainer-clean?
  shouldn't maintainer-clean print the message before running
  any part of the make?  (just to slow things down long enough
  for the user to stop it)
  (maybe doesn't matter since people who even know about
  maintainer-clean already have a clue)

* There are probably more bugs in variable_conditions_sub along
  the lines of the one that caused cond4.test to fail.

* give user more control over -I flags
  in particular document a way to override the defaults

* reintroduce AM_FUNC_FNMATCH which sets LIBOBJS
  Then have automake know about fnmatch.h.
    [ probably should wait for autoconf to get right functionality ]

* Add a conditional for dependency tracking
  (what to name it is the biggest problem here)
  (because we want it to flag dist/no-dist -- not just deps)
    [ this might not really be correctly doable.
      instead we need a compile-time conditional for this
      yuck ]

* Allow per-object cflags:
	bin_PROGRAMS = foo
	foo_CFLAGS = -DFOO
* At the same time, allow sources in subdirs:
	foo_SOURCES = x/y.c
  This requires `mkdir x' at build time
 [ both of these require per-file rules, and not pattern rules ]
 [ use user-written suffix rules to generate the per-file rules in
   an automatic way -- this would be mucho cool ]

* Allow for multiple translations of a texinfo file:
	LL_info_TEXINFOS = ...
  will put info files for language LL into $(infodir)/LL.

* If you suppress an internal variable by specifying a variable
  in a Makefile.am, but the variable is conditional, then automake
  should generate the internal variable conditionally.
  You have to scan the map of all conditions and fill in the holes here

* Every program foo has FOOFLAGS right now.
  It should also have AM_FOOFLAGS, which can be set in Makefile.am.
DONE: but needs to be documented

* Should be able to update files that would be installed with -a
  (--force?)

* "make diff" capability
  look at gcc's Makefile.in to see what to do
  or look at maint program

* Karl wants to be able to set LIBS and LDFLAGS at build time, like CFLAGS
  maybe we need something more general?

* add $(srcdir)/ before some dependencies?

* define LINK if a program is mentioned, even if no C sources appear

* BUILT_SOURCES should not be distributed, even when they appear in
  another _SOURCES line. [? or maybe just leave this up to the
  to-be-defined generic distribution method ]
  must completely revisit the entire BUILT_SOURCES idea

* in --cygnus, clean-info not generated at top level

* what if an element of a scanned variable looks like
	$(FOO).$(BAR)  ?
  or some other arbitrary thing?
  right now we try to cope, but not very well

* if `interlock' exists, that should be an error (?)
  should also warn about using new ylwrap and not old one
  only do this when looking for ylwrap

** make sure every variable that is used is also defined

* make sure `missing' defines are generated
* if no AM_INIT_AUTOMAKE, then don't handle `missing' stuff.
  Yuck!
* missing should handle install -d and rmdir -p (for uninstall)

* a couple ways to be smarter:
  - notice when a .c file is a target somewhere, and auto-add it to
    BUILT_SOURCES
  - notice a target of the form `.x.y:' and assume it is a suffix rule


* NORMAL_INSTALL / NORMAL_UNINSTALL -vs- recursive rules
  [ requires changes to the standard ]

* cross-compilation support:
  programs built and used by the build process need to be
  built for CC_FOR_BUILD
  introduce a new variable for this

* if foo.y is a source, foo.h isn't auto-distributed?

* copyrights on m4 files, aclocal output

* is there a way to add a directory and then have "make" do all the
  updating?  think.

* put standards.texi into distribution


* should not put texiname_TEXINFOS into distribution
  should rename this macro anyway, to foo_texi_DEPENDENCIES

* *all* installed scripts should support --version, --help

For now I guess I'll just have automake give an error if it encounters
non-C source in a libtool library specification.

* must split $obj into two parts: one for libtool and one for
  deansification.  Otherwise .S files will be deansified!

* ansi2knr must currently appear in a directory that has some source

* if program has the same name as a target, do something sensible:
  - if the target is internal, rename it
  - if the target is mandated (eg, "info"), tell the user
    consider auto-modifying the program name to work around this

* should separate actual options from strictness levels
  strictness should only cover requirements
  You should be able to pick and choose options

should clean up texinfos.am; one rule is repeated 3 times, but
shouldn't be

should always use perl -w

rewrite in guile (RMS request)
at the same time, consider adding a GUI
could use the same parsing code for the GUI and the standalone version
that means figuring out a better representation of internal state
[ that's easy -- anything is better than what we have now ]

having just one Makefile for a project would give a big speed increase
for a project with many directories, eg glibc.  ideally (?) you'd
still be able to have a Makefile.am in each directory somehow; this
might make editing conceptually easier.

* finish up TAGS work
* `acinstall'
* put parser.h into distribution if "yacc -d" is used

* only remove libtool at top level?

* clean up source directory by moving stuff into subdirs

* consider adding pkglibexecdir, maybe others?
  requests for pkg-dirs with version included

Avoid loops when installing; instead unroll them in automake

* for new autoconf:
  * completely handle multi-":" mode for AC_CONFIG_HEADER
  * Scan multiple input files when Makefile is generated?
    This would provide flexibility for large projects; subsumes
    the "Makefile.tmpl" idea

   [ can't do this.  must explain why in manual.
     basically, solving all the problems is too hard
     like: how to remove redundancies between generated .in files
     instead should implement `include' directive for Makefile.am ]
* for multi-":" mode and AC_OUTPUT, it might be good to pick the
  first input file that has a corresponding .am file.

Some long-term projects:
* if $(FOO) is used somewhere, ensure FOO is defined, either by
  user or by automake if possible

[ include, += support ]
* even better would be allowing targets in different included
  fragments to be merged.  e.g., `install-local'.

consider putting all check-* targets onto @check?
To support --help/--version checking?

take diff-n-query code from libit

Per Bothner says:
Per> 1) Being able to build a set of non-source programs
Per> from source programs, without necessarily linking them together.
Per> I.e. one should be able to say something like:
Per> 	dummy_SOURCES=foo.c bar.c
Per> and automake should realize that it needs to build foo.o and bar.o.
Per> 2) Being intelligent about new kinds of suffixes.
Per> If it sees:
Per> 	SUFFIXES = .class .java
Per> and a suffix rule of the form:
Per> 	.java.class:
Per> then it should be able to realize it can build .class files from
Per> .java files, and thus be able to generate a list of
Per> .class files from a list of .java source files.

!! Must fix require_file stuff.  It is really gross, and I don't
   understand it any more.

* error messages should print ``[info blah blah]'' command when a
  certain part of the standards apply.  saw idea in message from
  Craig Burley.  wouldn't it be really cool if compile-mode in Emacs
  understood this convention, and you could click on such text to
  go to the appropriate info page?  [ I think you can ]

Jim's idea: should look for @setfilename and warn if filenames too long
* guess split size

** many requests for a way to omit a file from the distribution.
   Should be done like `!foo' or `~foo' in _SOURCES, etc.
   Such files should be removed explicitly after the copy step!
   Doing this requires rewriting macros before generating Makefile.in.

from joerg-martin schwarz:
 -- If Makefile.am contains $(CC), $(COMPILE), $(YLWRAP), .... 
    in an explicitly written rule,  you should emit the corresponding
    Makefile variables automatically.

Configuring in the large:
* allow hierarchy of dirs to share one aclocal.m4
  How?

consider printing full file name of Makefile.am or configure.in when
giving error.  This would help for very large trees with many
configure.in scripts

From the GNU Standards.  These things could be checked, and probably
should be if --gnu.
*    Make sure that the directory into which the distribution unpacks (as
well as any subdirectories) are all world-writable (octal mode 777).
*   Make sure that no file name in the distribution is more than 14
characters long.
*    Don't include any symbolic links in the distribution itself.
     (ditto hard links)
*    Make sure that all the files in the distribution are world-readable.
** also, check --help output and --version output.  Idea from Fran鏾is
* standards no longer prohibit ANSI C.  What does this imply
  for the de-ansi-fication feature? [ must keep it -- some users rely on it ]

should be able to determine what is built by looking at rules (and
configure.in).  Then built man pages (eg) could automatically be
omitted from the distribution.

Idea from Joerg-Martin Schwarz: allow passing different -D flags to
different compiles.  This can be done, but with the restriction that a
.c cannot appear in 2 different "objects" (programs/libraries)
compiled with different -D options (because -c and -o do not always
work together and parallel makes must work).  This could be
implemented by noticing whenever a ".o" target with no rules is being
emitted, and adding the appropriate compilation rule as appropriate.
This should work with targets from Makefile.am as well as from .P
files, which means rewriting so that the Makefile.am contents aren't
copied into the output immediately.
 [ this could be probably done more directly by examining the sources
   as we scan Makefile.am ]

Henrik Frystyk Nielsen says:
Henrik> 4) Flags like --include-deps are lost when you make changes to
Henrik> Makefile.am files and automake is run automatically. It would
Henrik> be nice to keep these flags as I now have to redo everything
Henrik> manually.
... what about other options here too?

Think about: maybe "make check" should just bomb if error occurs?
Then user must use "make -k check".  This is probably more natural.

Consider: "cvs" option adds some cvs-specific rules?