src/cf/linux-test3.m4

   1 AC_DEFUN(LINUX_NEED_RHCONFIG,[
   2 if test "x$enable_redhat_buildsys" = "xyes"; then
   3   RHCONFIG_SP=""
   4   RHCONFIG_MP=""
   5 else
   6   AC_MSG_CHECKING(for redhat kernel configuration)
   7   if test -f "${LINUX_KERNEL_PATH}/include/linux/rhconfig.h"; then
   8     ac_linux_rhconfig=yes
   9     RHCONFIG_SP="-D__BOOT_KERNEL_UP=1 -D__BOOT_KERNEL_SMP=0 -U__SMP__"
  10     RHCONFIG_MP="-D__BOOT_KERNEL_UP=0 -D__BOOT_KERNEL_SMP=1 -D__SMP__"
  11     AC_MSG_RESULT($ac_linux_rhconfig)
  12     if test ! -f "/boot/kernel.h"; then
  13         AC_MSG_WARN([/boot/kernel.h does not exist. build may fail])
  14     fi
  15   else
  16     ac_linux_rhconfig=no
  17     RHCONFIG_SP="-U__SMP__"
  18     RHCONFIG_MP="-D__SMP__"
  19     AC_MSG_RESULT($ac_linux_rhconfig)
  20   fi
  21 fi
  22 AC_SUBST(RHCONFIG_SP)
  23 AC_SUBST(RHCONFIG_MP)
  24 ])
  25
  26 AC_DEFUN(LINUX_WHICH_MODULES,[
  27 if test "x$enable_redhat_buildsys" = "xyes"; then
  28   MPS=Default
  29 else
  30   save_CPPFLAGS="$CPPFLAGS"
  31   CPPFLAGS="-I${LINUX_KERNEL_PATH}/include -D__KERNEL__ $RHCONFIG_SP $CPPFLAGS"
  32   AC_MSG_CHECKING(if kernel uses MODVERSIONS)
  33   AC_CACHE_VAL(ac_cv_linux_config_modversions,[
  34   AC_TRY_COMPILE(
  35 [#include <linux/config.h>
  36 ],
  37 [#ifndef CONFIG_MODVERSIONS
  38 lose;
  39 #endif
  40 ],
  41   ac_cv_linux_config_modversions=yes,
  42   ac_cv_linux_config_modversions=no)])
  43   AC_MSG_RESULT($ac_cv_linux_config_modversions)
  44   AC_MSG_CHECKING(which kernel modules to build)
  45   if test "x$ac_linux_rhconfig" = "xyes" -o "x$ac_cv_linux_config_modversions" = "xno"; then
  46       MPS="MP SP"
  47   else
  48   AC_CACHE_VAL(ac_cv_linux_config_smp, [
  49   AC_TRY_COMPILE(
  50 [#include <linux/config.h>
  51 ],
  52 [#ifndef CONFIG_SMP
  53 lose;
  54 #endif
  55 ],
  56   ac_cv_linux_config_smp=yes,
  57   ac_cv_linux_config_smp=no)])
  58   dnl AC_MSG_RESULT($ac_cv_linux_config_smp)
  59       if test "x$ac_cv_linux_config_smp" = "xyes"; then
  60           MPS=MP
  61       else
  62           MPS=SP
  63       fi
  64   fi
  65   CPPFLAGS=$save_CPPFLAGS
  66   AC_MSG_RESULT($MPS)
  67 fi
  68 AC_SUBST(MPS)
  69 ])
  70