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This first implementation will illustrate the bootstrap issue mentioned in the previous section (see section 10.4 Built sources).
Here is a tentative `Makefile.am'.
# This won't work. bin_PROGRAMS = foo foo_SOURCES = foo.c nodist_foo_SOURCES = bindir.h CLEANFILES = bindir.h bindir.h: Makefile echo '#define bindir "$(bindir)"' >$@
This setup doesn't work, because Automake doesn't know that `foo.c' includes `bindir.h'. Remember, automatic dependency tracking works as a side-effect of compilation, so the dependencies of `foo.o' will be known only after `foo.o' has been compiled (see section 9.14 Automatic dependency tracking). The symptom is as follows.
% make source='foo.c' object='foo.o' libtool=no \ depfile='.deps/foo.Po' tmpdepfile='.deps/foo.TPo' \ depmode=gcc /bin/sh ./depcomp \ gcc -I. -I. -g -O2 -c `test -f 'foo.c' || echo './'`foo.c foo.c:2: bindir.h: No such file or directory make: *** [foo.o] Error 1
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