Workaround for problem with autconf 2.53 on Solaris
(Fixes problem with SOCKET_SIZE_TYPE)


BUILD/compile-solaris-sparc:
  Removed non standard compiler options
BUILD/compile-solaris-sparc-purify:
  Removed non standard compiler options
acinclude.m4:
  Fixed 'stack direction' check.
  Workaround for problem with autconf 2.53 on Solaris
  (Fixes problem with SOCKET_SIZE_TYPE)