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configure.ac was introduced in 2001 with automake-1.15 and autoconf-2.50 to replace the file named configure.in. Autotools is preparing to remove configure.in in Automake 2.0. All new software should be using configure.ac. This also fixes Bug #69770 where extensions are creating configure.in Signed-off-by: Brian Evans <grknight@gentoo.org>
This is bcmath, a library of arbitrary precision math routines. These routines, in a different form, are the routines that to the arbitrary precision calculations for GNU bc and GNU dc. This library is provided to make these routines useful in a larger context with less restrictions on the use of them. These routines do not duplicate functionality of the GNU gmp library. gmp is similar, but the actual computation is different.