Re: automake and funny BUILT_SOURCES behavior

[Alexandre Duret-Lutz]

Sorry for the delay.

| | bin_PROGRAMS = funny
| | 
| | SUFFIXES = .m4
| | M4COMPILE = $(M4) -I $(srcdir) $(M4FLAGS) $+ > $@
| | 
| | %.hh: %.m4 
| |     $(M4COMPILE)

$+ and % are not portable.  Better use

 SUFFIXES = .m4
 M4COMPILE = $(M4) -I $(srcdir) $(M4FLAGS) $< > $@
 .m4.hh:
        $(M4COMPILE)

| | BUILT_SOURCES = fun1.hh
| | 
| | funny_SOURCES = fun1.cc $(BUILT_SOURCES)
| | EXTRA_funny_SOURCES = fun1.m4
| 
| As you see, I preprocess one of my headers using m4 so I list it into
| the BUILT_SOURCES flag.
| The preprocessed header will go into the destination directory, since it
| may change depending on the configure command line.
| 
| This will work normally if you use the default automake dependecy
| tracking, but fail when building distributions where --include-deps will
| be used.
| 
| This beause the dist target will try to produce these headers and put
| them into the distribution and the final Makefile expects to have these
| files into the source directory.

If you don't want fun1.hh to be distributed, simply do not put
$(BUILT_SOURCES) in funny_SOURCES.

| Any idea about how to bypass the problem will still use the usual automake
| dependency tracking?
| 
| I'm still using 1.4-p6 with autoconf 5.

One foot in the past and the other in the future :)
-- 
Alexandre Duret-Lutz