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-rw-r--r--macros/rtems-top.m444
1 files changed, 44 insertions, 0 deletions
diff --git a/macros/rtems-top.m4 b/macros/rtems-top.m4
new file mode 100644
index 0000000000..26abdf330d
--- /dev/null
+++ b/macros/rtems-top.m4
@@ -0,0 +1,44 @@
+dnl $Id$
+
+dnl
+dnl RTEMS_TOP($1)
+dnl
+dnl $1 .. relative path from this configure.in to the toplevel configure.in
+dnl
+AC_DEFUN(RTEMS_TOP,
+[dnl
+AC_CHECK_PROGS(MAKE, gmake make)
+AC_BEFORE([$0], [AC_CONFIG_AUX_DIR])dnl
+AC_BEFORE([$0], [AM_INIT_AUTOMAKE])dnl
+
+## HACK to allow gnu-make conditionals in automake-Makefiles.
+ENDIF=endif
+AC_SUBST(ENDIF)
+
+## HACK to destinguish between using GNU and RTEMS canonicalization
+AM_CONDITIONAL(RTEMS_CANONICALIZATION,test "x" = "y")
+
+AC_ARG_WITH(target-subdir,
+[ --with-target-subdir=DIR],
+TARGET_SUBDIR="$withval",
+TARGET_SUBDIR=".")
+
+RTEMS_TOPdir="$1";
+AC_SUBST(RTEMS_TOPdir)
+
+dnl Determine RTEMS Version string from the VERSION file
+dnl Hopefully, Joel never changes its format ;-
+AC_MSG_CHECKING([for RTEMS Version])
+if test -r "${srcdir}/${RTEMS_TOPdir}/VERSION"; then
+changequote(,)dnl
+RTEMS_VERSION=`grep 'RTEMS Version' ${srcdir}/${RTEMS_TOPdir}/VERSION | \
+sed -e 's%RTEMS[ ]*Version[ ]*\(.*\)[ ]*%\1%g'`
+changequote([,])dnl
+else
+AC_MSG_ERROR(Unable to find ${RTEMS_TOPdir}/VERSION)
+fi
+if test -z "$RTEMS_VERSION"; then
+AC_MSG_ERROR(Unable to determine version)
+fi
+AC_MSG_RESULT($RTEMS_VERSION)
+])dnl