Commit 6f9206d4db914cf904cd4711e3044d99c36dae8b

Paul Eggert 2016-05-17T09:08:02

manywarnings: update for GCC 6.1 * m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC): Add GCC 6.1 options that apply to C. * build-aux/gcc-warning.spec: Add GCC 6.1 options that do not apply to C, are obsolescent, etc.