+# LB_DOWNSTREAM_RELEASE
+#
+AC_DEFUN([LB_DOWNSTREAM_RELEASE],
+[AC_ARG_WITH([downstream-release],
+ AC_HELP_STRING([--with-downstream-release=string],
+ [set a string in the BUILD_VERSION and RPM Release: (default is nothing)]),
+ [DOWNSTREAM_RELEASE=$with_downstream_release],
+ [
+ # if not specified, see if it's in the META file
+ if test -f META; then
+ DOWNSTREAM_RELEASE=$(sed -ne '/^LOCAL_VERSION =/s/.*= *//p' META)
+ fi
+ ])
+AC_SUBST(DOWNSTREAM_RELEASE)
+])
+
+#
+# LB_BUILDID
+#
+# Check if the source is a GA release and if not, set a "BUILDID"
+#
+# Currently there are at least two ways/modes of/for doing this. One
+# is if we are in a valid git repository, the other is if we are in a
+# non-git source tree of some form. Building the latter from the former
+# will be handled here.
+AC_DEFUN([LB_BUILDID],
+[
+AC_MSG_CHECKING([for buildid])
+BUILDID=""
+if git branch >/dev/null 2>&1; then
+ ffw=0
+ hash=""
+ ver=$(git describe --match v[[0-9]]_*_[[0-9]]* --tags)
+ if [[[ $ver = *-*-* ]]]; then
+ hash=${ver##*-}
+ ffw=${ver#*-}
+ ffw=${ffw%-*}
+ ver=${ver%%-*}
+ fi
+ # it's tempting to use [[ $ver =~ ^v([0-9]+_)+([0-9]+|RC[0-9]+)$ ]]
+ # here but the portability of the regex on the right is dismal
+ # (thanx suse)
+ if echo "$ver" | egrep -q "^v([[0-9]]+_)+([[0-9]]+|RC[[0-9]]+)$"; then
+ ver=$(echo $ver | sed -e 's/^v\(.*\)/\1/' \
+ -e 's/_RC[[0-9]].*$//' -e 's/_/./g')
+ fi
+
+ # a "lustre fix" value of .0 should be truncated
+ if [[[ $ver = *.*.*.0 ]]]; then
+ ver=${ver%.0}
+ fi
+ # ditto for a "lustre fix" value of _0
+ if [[[ $ver = v*_*_*_0 ]]]; then
+ ver=${ver%_0}
+ fi
+ if [[[ $ver = v*_*_* ]]]; then
+ ver=${ver#v}
+ ver=${ver//_/.}
+ fi
+
+ # only do this test for lustre (not ldiskfs)
+ if test "$PACKAGE" = "lustre" -a "$ver" != "$VERSION"; then
+ AC_MSG_WARN([most recent tag found: $ver does not match current version $VERSION.])
+ fi
+
+ if test "$ffw" != "0"; then
+ BUILDID="$hash"
+ msg="$BUILDID (ahead by $ffw commits)"
+ AC_MSG_RESULT([$msg])
+ else
+ AC_MSG_RESULT([none... congratulations, you must be on a tag])
+ fi
+elif test -f META; then
+ BUILDID=$(sed -ne '/^BUILDID =/s/.*= *//p' META)
+ msg="$BUILDID (from META file)"
+ AC_MSG_RESULT([$msg])
+else
+ AC_MSG_WARN([FIXME: I don't know how to deal with source trees outside of git that don't have a META file. Not setting a buildid.])
+fi
+AC_SUBST(BUILDID)
+])
+
+#