granicus.if.org Git - apache/blob - server/mpm/config.m4

   1 AC_MSG_CHECKING(which MPM to use)
   2 AC_ARG_WITH(mpm,
   3 APACHE_HELP_STRING(--with-mpm=MPM,Choose the process model for Apache to use.
   4                           MPM={simple|event|worker|prefork|winnt}
   5                           Specify "shared" instead of an MPM name to load MPMs dynamically.
   6 ),[
   7   APACHE_MPM=$withval
   8 ],[
   9   if test "x$APACHE_MPM" = "x"; then
  10     APACHE_MPM=event
  11   fi
  12 ])
  13 AC_MSG_RESULT($APACHE_MPM)
  14
  15 apache_cv_mpm=$APACHE_MPM
  16
  17 dnl Note that a build with an explicitly loaded MPM must support threaded MPMs.
  18 ap_mpm_is_threaded ()
  19 {
  20     if test "$apache_cv_mpm" = "shared" -o "$apache_cv_mpm" = "worker" -o "$apache_cv_mpm" = "event" -o "$apache_cv_mpm" = "simple" -o "$apache_cv_mpm" = "winnt" ; then
  21         return 0
  22     else
  23         return 1
  24     fi
  25 }
  26
  27 if ap_mpm_is_threaded; then
  28   APR_CHECK_APR_DEFINE(APR_HAS_THREADS)
  29
  30   if test "x$ac_cv_define_APR_HAS_THREADS" = "xno"; then
  31     AC_MSG_RESULT(The currently selected MPM requires threads which your system seems to lack)
  32     AC_MSG_CHECKING(checking for replacement)
  33     AC_MSG_RESULT(prefork selected)
  34     apache_cv_mpm=prefork
  35   else
  36     case $host in
  37       *-linux-*)
  38         case `uname -r` in
  39           2.0* )
  40             dnl Threaded MPM's are not supported on Linux 2.0
  41             dnl as on 2.0 the linuxthreads library uses SIGUSR1
  42             dnl and SIGUSR2 internally
  43             echo "Threaded MPM's are not supported on this platform"
  44             AC_MSG_CHECKING(checking for replacement)
  45             AC_MSG_RESULT(prefork selected)
  46             apache_cv_mpm=prefork
  47           ;;
  48         esac
  49       ;;
  50     esac
  51   fi
  52 fi
  53
  54 APACHE_FAST_OUTPUT(server/mpm/Makefile)
  55
  56 if test "$apache_cv_mpm" = "shared"; then
  57   MPM_NAME=""
  58   MPM_SUBDIR_NAME=""
  59   MPM_LIB=""
  60   MPM_DIR=""
  61 else
  62   MPM_NAME=$apache_cv_mpm
  63   MPM_SUBDIR_NAME=$MPM_NAME
  64   MPM_DIR=server/mpm/$MPM_SUBDIR_NAME
  65   MPM_LIB=$MPM_DIR/lib${MPM_NAME}.la
  66
  67   APACHE_SUBST(MPM_NAME)
  68   APACHE_SUBST(MPM_SUBDIR_NAME)
  69   MODLIST="$MODLIST mpm_${MPM_NAME}"
  70 fi
  71
  72 APACHE_SUBST(MPM_NAME)
  73 APACHE_SUBST(MPM_SUBDIR_NAME)