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15.5 Upgrading From Version 1

Autoconf version 2 is mostly backward compatible with version 1. However, it introduces better ways to do some things, and doesn't support some of the ugly things in version 1. So, depending on how sophisticated your `configure.ac' files are, you might have to do some manual work in order to upgrade to version 2. This chapter points out some problems to watch for when upgrading. Also, perhaps your configure scripts could benefit from some of the new features in version 2; the changes are summarized in the file `NEWS' in the Autoconf distribution.

15.5.1 Changed File Names  Files you might rename
15.5.2 Changed Makefiles  New things to put in `Makefile.in'
15.5.3 Changed Macros  Macro calls you might replace
15.5.4 Changed Results  Changes in how to check test results
15.5.5 Changed Macro Writing  Better ways to write your own macros

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