[PATCH 2/3] add --enable-paravirt in cpukit configure scripts

[Philipp Eppelt]

---
 cpukit/aclocal/enable-paravirt.m4 | 17 +++++++++++++++++
 cpukit/configure.ac               |  6 ++++++
 2 files changed, 23 insertions(+)
 create mode 100644 cpukit/aclocal/enable-paravirt.m4

diff --git a/cpukit/aclocal/enable-paravirt.m4 b/cpukit/aclocal/enable-paravirt.m4
new file mode 100644
index 0000000..ff768f4
--- /dev/null
+++ b/cpukit/aclocal/enable-paravirt.m4
@@ -0,0 +1,17 @@
+AC_DEFUN([RTEMS_ENABLE_PARAVIRT],
+[
+
+AC_ARG_ENABLE(paravirt,
+[AS_HELP_STRING([--enable-paravirt],[enable support for paravirtualization 
+(i386 only) (default=no) ])],
+
+[case "${enableval}" in 
+  yes) case "${RTEMS_CPU}" in
+         i386)	    RTEMS_HAS_PARAVIRT=yes ;;
+         *)         RTEMS_HAS_PARAVIRT=no ;;
+       esac
+       ;;
+  no) RTEMS_HAS_PARAVIRT=no ;;
+  *)  AC_MSG_ERROR(bad value ${enableval} for enable-paravirt option) ;;
+esac],[RTEMS_HAS_PARAVIRT=no]) 
+])
diff --git a/cpukit/configure.ac b/cpukit/configure.ac
index da02f24..e111fdd 100644
--- a/cpukit/configure.ac
+++ b/cpukit/configure.ac
@@ -15,6 +15,7 @@ RTEMS_ENABLE_MULTIPROCESSING
 RTEMS_ENABLE_POSIX
 RTEMS_ENABLE_RTEMS_DEBUG
 RTEMS_ENABLE_NETWORKING
+RTEMS_ENABLE_PARAVIRT
 
 RTEMS_ENV_RTEMSCPU
 RTEMS_CHECK_RTEMS_DEBUG
@@ -182,6 +183,11 @@ RTEMS_CPUOPT([RTEMS_SMP],
   [1],
   [if SMP is enabled])
 
+RTEMS_CPUOPT([RTEMS_PARAVIRT],
+  [test x"$RTEMS_HAS_PARAVIRT" = xyes],
+  [1],
+  [PARAVIRT is enabled])
+
 RTEMS_CPUOPT([RTEMS_NETWORKING],
   [test x"$rtems_cv_HAS_NETWORKING" = xyes],
   [1],
-- 
1.8.1.4