cmulocal/pthreads.m4

   1 dnl pthreads.m4--pthreads setup macro
   2 dnl Rob Earhart
   3 dnl $Id: pthreads.m4,v 1.11 2003/10/08 20:35:25 rjs3 Exp $
   4
   5 AC_DEFUN([CMU_PTHREADS], [
   6    AC_REQUIRE([AC_CANONICAL_HOST])
   7    cmu_save_LIBS="$LIBS"
   8    AC_CHECK_LIB(pthread, pthread_create,LIB_PTHREAD="-lpthread",
   9      AC_CHECK_LIB(c_r, pthread_create,LIB_PTHREAD="-lc_r",
  10        AC_ERROR([Can't compile without pthreads])))
  11   LIBS="$cmu_save_LIBS"
  12    AC_SUBST(LIB_PTHREAD)
  13    AC_DEFINE(_REENTRANT)
  14    case "$host_os" in
  15    solaris2*)
  16         AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
  17         AC_DEFINE(__EXTENSIONS__)
  18         ;;
  19    irix6*)
  20         AC_DEFINE(_SGI_REENTRANT_FUNCTIONS)
  21         ;;
  22    esac
  23 ])