Quagga 1.2.4

A brown paper release, to fix an error causing asserts in daemons. See https://bugzilla.quagga.net/show_bug.cgi?id=975. With thanks to Sergey Popov, Andreas Nilsson and Xiami.

Summary of changes:

lib: Fix assert in thread_add_unuse if thread_execute was used lib: Avoid re-definition of IPPROTO_IP with some versions of Linux

Full changelog:

commit 9d7a49f Author: Paul Jakma paul@jakma.org Date: Mon Feb 19 20:55:20 2018 +0000

lib: Fix assert in thread_add_unuse if thread_execute was used

• thread.c: (thread_call) thread_execute passes in a dummy thread, on its
  stack, with a NULL thread master. Those shouldn't be added to the unuse
  list or thread_add_unuse rightly asserts.

  Fix this very dumb bug.

  See https://bugzilla.quagga.net/show_bug.cgi?id=975

  With thanks to Sergey Popov, admin@pinkbyte.ru, and Andreas Nilsson,
  andrnils@resilans.se, for help with diagnosis and testing.
  commit fed5021 Author: Xiami taopy@vip.qq.com Date: Sun Feb 4 16:35:42 2018 +0000

lib: Avoid re-definition of IPPROTO_IP with some versions of Linux

• Starting from linux-4.11 [commit
  bcb41c6bced1ee778d23c53a6b4807fb08cf5540], linux/mroute.h includes
  linux/in.h , that makes gcc roar a lot of things like "error:
  redeclaration of enumerator 'IPPROTO_IP'" when compiling quagga-1.2.2

  lib/zebra.h includes sys/capability.h first, then includes
  netinet/in.h . In sys/capability.h, it includes linux/xattr.h, and
  that includes linux/libc-compat.h . Since at that time netinet/in.h is
  not included yet, _NETINET_IN_H is not defined, causing libc-compat.h
  set __UAPI_DEF_IN_IPPROTO to 1. Then, a include of netinet/in.h
  defines IPPROTO_IP. Later a include of linux/mroute.h includes
  linux/in.h. Because __UAPI_DEF_IN_IPPROTO is set to non zero,
  IPPROTO_IP is redeclared.

• lib/zebra.h: Move the privs/capabilities include block to after the
  network block.