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In June 1991 I was maintaining many of the GNU utilities for the
Free Software Foundation. As they were ported to more platforms and
more programs were added, the number of @option{-D} options that users
had to select in the `Makefile' (around 20) became burdensome.
Especially for me--I had to test each new release on a bunch of
different systems. So I wrote a little shell script to guess some of
the correct settings for the fileutils package, and released it as part
of fileutils 2.0. That configure script worked well enough that
the next month I adapted it (by hand) to create similar configure
scripts for several other GNU utilities packages. Brian Berliner
also adapted one of my scripts for his CVS revision control system.
Later that summer, I learned that Richard Stallman and Richard Pixley
were developing similar scripts to use in the GNU compiler tools;
so I adapted my configure scripts to support their evolving
interface: using the file name `Makefile.in' as the templates;
adding `+srcdir', the first option (of many); and creating
`config.status' files.
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