From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeff Epler <jepler@unpythonic.net>
Subject: Re: [PATCH 1/1] Introduce new build variables
 INSTALL_MODE_EXECUTABLE and INSTALL_MODE_DATA.
Date: Thu, 31 Jan 2013 07:25:27 -0600
Message-ID: <20130131132526.GA10622@unpythonic.net>
References: <5109D230.2030101@iam.tj>
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To: TJ <git@iam.tj>
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I was not familiar with this behavior of 'install -d' that it tries to change
the mode of an existing directory, but GNU coreutils 8.12.197-032bb
certainly behaves as TJ reports.

As a possible alternative, what about
    [ -d $(DESTDIR)$(main1dir) ] || $(INSTALL) -d -m 755 $(DESTDIR)$(man1dir)
so that $(INSTALL) is not called when the target directory exists
already.

Jeff