Manfred Schwarb points out that when I moved the autoconf machinery up
from the unix subdirectory to the top level, in r10141, I missed a
couple of lingering $(srcdir)/.. in the make rule for version.o, as a
result of which the automatic checking of the manifest wasn't doing
its thing and tools built from a standard .tar.gz were reporting as
'Unidentified build'.
[originally from svn r10201]
[r10141 ==
a947c49bec36957cb5d38e1dc2e22dc0e3465849]
# backtick expression. We also force rebuilding via a -D option that
# makes version.o include empty.h, which we construct ourselves and
# touch whenever any source file is updated.
-!cflags am version $(VER) -DINCLUDE_EMPTY_H `if test -z "$(VER)" && (cd $(srcdir)/..; md5sum -c manifest >/dev/null 2>&1); then cat $(srcdir)/../version.def; else echo "$(VER)"; fi`
+!cflags am version $(VER) -DINCLUDE_EMPTY_H `if test -z "$(VER)" && (cd $(srcdir); md5sum -c manifest >/dev/null 2>&1); then cat $(srcdir)/version.def; else echo "$(VER)"; fi`
!begin am
BUILT_SOURCES = empty.h
CLEANFILES = empty.h