piechart: Use definition of M_PI from GSL.
authorBen Pfaff <blp@gnu.org>
Wed, 1 Jul 2009 23:39:52 +0000 (16:39 -0700)
committerBen Pfaff <blp@gnu.org>
Thu, 2 Jul 2009 03:46:28 +0000 (20:46 -0700)
commitee4bbdf8f7fd15733c4fa02737bf485574dce231
tree65f0488eb3a638e43a647fd4eaa8e00232f32c8f
parent73fc61ceb0586d13195c3da232bb0c733f469f50
piechart: Use definition of M_PI from GSL.

The GSL header <gsl/gsl_math.h> makes sure that the standard BSD
mathematical constants are defined, so we don't have to do it ourselves.
src/output/charts/piechart.c