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libpq.rc make rule

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: pgsql-hackers(at)postgresql(dot)org
Subject: libpq.rc make rule
Date: 2008-02-25 19:21:00
Message-ID: 200802252021.00535.peter_e@gmx.net (view raw or flat)
Thread:
Lists: pgsql-hackers
The libpq.rc make rule says:

# depend on Makefile.global to force rebuild on re-run of configure
$(srcdir)/libpq.rc: libpq.rc.in $(top_builddir)/src/Makefile.global
        sed -e 's/\(VERSION.*\),0 *$$/\1,'`date '+%y%j' | sed 's/^0*//'`'/' < $< > $@

However, libpq.rc is also included in the distribution, so whenever a
distribution is built, the distributed file would be overwritten, which is
not a nice thing to do.

Could someone explain what the requirement behind this is?  The '+%y%j'
changes every day.  Why is libpq the only subsystem that needs a daily
version number?

-- 
Peter Eisentraut
http://developer.postgresql.org/~petere/

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