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pthread, pthread_sigmask, threadlib: port to Ubuntu 14.04 Problem reported by Assaf Gordon in: http://lists.gnu.org/archive/html/bug-gnulib/2014-09/msg00023.html Apparently Ubuntu is doing some fancy link-time optimization that doesn't work with -lpthread but does work with -pthread. Work around the bug by preferring -pthread to -lpthread. This change affects only LIBS, not CFLAGS, which is a little weird, but it works. * m4/pthread.m4 (gl_PTHREAD_CHECK): * m4/threadlib.m4 (gl_THREADLIB_BODY): Prefer -pthread to -lpthread. * m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK): Treat -pthread like -lpthread.
author Paul Eggert <eggert@cs.ucla.edu>
date Thu, 04 Sep 2014 14:55:12 -0700
parents 344018b6e5d7
children ab58d4870664
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# serial 14

# Copyright (C) 1999-2001, 2003-2007, 2009-2014 Free Software Foundation, Inc.

# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

dnl Written by Jim Meyering

AC_DEFUN([gl_FUNC_GROUP_MEMBER],
[
  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])

  dnl Persuade glibc <unistd.h> to declare group_member().
  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])

  dnl Do this replacement check manually because I want the hyphen
  dnl (not the underscore) in the filename.
  AC_CHECK_FUNC([group_member], , [
    HAVE_GROUP_MEMBER=0
  ])
])

# Prerequisites of lib/group-member.c.
AC_DEFUN([gl_PREREQ_GROUP_MEMBER],
[
  AC_REQUIRE([AC_FUNC_GETGROUPS])
])