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Create empty.h (used to force rebuilds of version.o by the automake

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makefile) as a side effect of running mkfiles.pl.

The automake docs observe that the BUILT_SOURCES list is only
automatically built by plain 'make' or 'make all' or a couple of other
targets, so the sequence './configure && make plink' from a freshly
unpacked tar file would previously fail for lack of empty.h.

If empty.h had important _content_ that needed to be built at compile
time, of course, I wouldn't be able to fix it like this; but since the
only important thing is the timestamp, I can just make sure it already
exists at the time of first build.

[originally from svn r9288]
This commit is contained in:
Simon Tatham
2011-09-14 15:54:26 +00:00
parent aac16a33e8
commit a4424bfd85
2 changed files with 13 additions and 2 deletions
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@ -179,9 +179,12 @@ version.o: FORCE
BUILT_SOURCES = empty.h
CLEANFILES = empty.h
empty.h: $(allsources)
echo '/* nothing to see here */' >$@
echo '/* Empty file touched by automake makefile to force rebuild of version.o */' >$@
!end
!begin >empty.h
/* Empty file touched by automake makefile to force rebuild of version.o */
!end
# Add VER to Windows resource targets, and force them to be rebuilt every
# time, on the assumption that they will contain version information.