src/cf/linux-test3.m4

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