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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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# ctype_h.m4 serial 6 dnl Copyright (C) 2009-2014 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_CTYPE_H], [ AC_REQUIRE([gl_CTYPE_H_DEFAULTS]) dnl <ctype.h> is always overridden, because of GNULIB_POSIXCHECK. gl_NEXT_HEADERS([ctype.h]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include <ctype.h> ]], [isblank]) ]) AC_DEFUN([gl_CTYPE_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_CTYPE_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) ]) AC_DEFUN([gl_CTYPE_H_DEFAULTS], [ GNULIB_ISBLANK=0; AC_SUBST([GNULIB_ISBLANK]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_ISBLANK=1; AC_SUBST([HAVE_ISBLANK]) ])