Footnotes

(1)

These variables are also called make macros in Make terminology, however in this manual we reserve the term macro for Autoconf's macros.

(2)

Older Autoconf versions used ‘configure.in’. Autoconf 2.50 and greater promotes ‘configure.ac’ over ‘configure.in’. The rest of this documentation will refer to ‘configure.ac’, but Automake also supports ‘configure.in’ for backward compatibility.

(3)

We believe. This work is new and there are probably warts. See section Introduction, for information on reporting bugs.

(4)

There are other, more obscure reasons for this limitation as well.

(5)

Much, if not most, of the information in the following sections pertaining to preprocessing Fortran 77 programs was taken almost verbatim from (make)Catalogue of Rules section `Catalogue of Rules' in The GNU Make Manual.

(6)

For example, the cfortran package addresses all of these inter-language issues, and runs under nearly all Fortran 77, C and C++ compilers on nearly all platforms. However, cfortran is not yet Free Software, but it will be in the next major release.