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

• # pthread-thread.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_THREAD],
  [
    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_CREATE=1
      REPLACE_PTHREAD_ATTR_INIT=1
      REPLACE_PTHREAD_ATTR_GETDETACHSTATE=1
      REPLACE_PTHREAD_ATTR_SETDETACHSTATE=1
      REPLACE_PTHREAD_ATTR_DESTROY=1
      REPLACE_PTHREAD_SELF=1
      REPLACE_PTHREAD_EQUAL=1
      REPLACE_PTHREAD_DETACH=1
      REPLACE_PTHREAD_JOIN=1
      REPLACE_PTHREAD_EXIT=1
    else
      if test $HAVE_PTHREAD_H = 0; then
        HAVE_PTHREAD_CREATE=0
        HAVE_PTHREAD_ATTR_INIT=0
        HAVE_PTHREAD_ATTR_GETDETACHSTATE=0
        HAVE_PTHREAD_ATTR_SETDETACHSTATE=0
        HAVE_PTHREAD_ATTR_DESTROY=0
        HAVE_PTHREAD_SELF=0
        HAVE_PTHREAD_EQUAL=0
        HAVE_PTHREAD_DETACH=0
        HAVE_PTHREAD_JOIN=0
        HAVE_PTHREAD_EXIT=0
      else
        dnl On HP-UX 11.11, pthread_create() and pthread_attr_init() are only
        dnl defined as inline functions.
        AC_CACHE_CHECK([whether pthread_create exists as a global function],
          [gl_cv_func_pthread_create],
          [saved_LIBS="$LIBS"
           LIBS="$LIBS $LIBPMULTITHREAD"
           AC_LINK_IFELSE(
             [AC_LANG_SOURCE(
                [[extern
                  #ifdef __cplusplus
                  "C"
                  #endif
                  int pthread_create (void);
                  int main ()
                  {
                    return pthread_create ();
                  }
                ]])],
             [gl_cv_func_pthread_create=yes],
             [gl_cv_func_pthread_create=no])
           LIBS="$saved_LIBS"
          ])
        if test $gl_cv_func_pthread_create = no; then
          REPLACE_PTHREAD_CREATE=1
          REPLACE_PTHREAD_ATTR_INIT=1
          AC_DEFINE([PTHREAD_CREATE_IS_INLINE], [1],
            [Define if pthread_create is an inline function.])
        fi
      fi
    fi
  ])
  

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