init: avoid redefinition warning for _GNU_SOURCE
commit81b0e8e247746ed9c30fb4dc8e911b38eedd38bc
authorEric Wong <normalperson@yhbt.net>
Thu, 26 Sep 2013 21:37:12 +0000 (26 21:37 +0000)
committerEric Wong <normalperson@yhbt.net>
Thu, 26 Sep 2013 21:37:12 +0000 (26 21:37 +0000)
treeff37df777d4a66aa3e9b5cf66d41df076cf15b43
parentcda98c580e7fdc12f996d29436a13b282affc92e
init: avoid redefinition warning for _GNU_SOURCE

This is already defined for most (if not all) Rubies when ruby.h
is included.
ext/sleepy_penguin/init.c