kc3-lang/gnulib/m4/pthread-spin.m4

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• Hash : 32a72f45
  Author :
  Date : 2023-01-01T01:14:21
  

  maint: run 'make update-copyright'
  

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• m4/pthread-spin.m4

• # pthread-spin.m4 serial 2
  dnl Copyright (C) 2019-2023 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_PTHREAD_SPIN],
  [
    AC_REQUIRE([gl_PTHREAD_H])
    AC_REQUIRE([AC_CANONICAL_HOST])
  
    if { case "$host_os" in mingw*) true;; *) false;; esac; } \
       && test $gl_threads_api = windows; then
      dnl Choose function names that don't conflict with the mingw-w64 winpthreads
      dnl library.
      REPLACE_PTHREAD_SPIN_INIT=1
      REPLACE_PTHREAD_SPIN_LOCK=1
      REPLACE_PTHREAD_SPIN_TRYLOCK=1
      REPLACE_PTHREAD_SPIN_UNLOCK=1
      REPLACE_PTHREAD_SPIN_DESTROY=1
    else
      if test $HAVE_PTHREAD_H = 0 || test $HAVE_PTHREAD_SPINLOCK_T = 0; then
        HAVE_PTHREAD_SPIN_INIT=0
        HAVE_PTHREAD_SPIN_LOCK=0
        HAVE_PTHREAD_SPIN_TRYLOCK=0
        HAVE_PTHREAD_SPIN_UNLOCK=0
        HAVE_PTHREAD_SPIN_DESTROY=0
      fi
    fi
  ])
  

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