mxcl/homebrew — pull request #10333 by hank (2012-02-19 23:04:44+00:00)
Title: Pari upgrade with added readline support

The pari 2.5.0 formula lacked support for readline, which is
basically essential when using gp. This version depends_on
readline (optionally). I have tested the Compile script from
pari with bogus --with-readline-lib/include flags, and it still
works, so brewing this without readline installed shouldn't be
a problem if that's your cup of tea.

After installing:

```
hank@shelob ~/repos/homebrew/Library/Formula $ gp
GP/PARI CALCULATOR Version 2.5.1 (released)
i386 running darwin (x86-64 kernel) 64-bit version
compiled: Feb 19 2012, gcc-4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.1.00)
(readline v6.2 enabled, extended help enabled)

Copyright (C) 2000-2011 The PARI Group```