src/cf/linux-test3.m4

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