Improve changeset identification to work from src tar ball too.

Signed-off-by: ian.pratt@cl.cam.ac.uk

diff --git a/xen/Makefile b/xen/Makefile
index f45d3df74b7533b81b36a4b9b6d16d3f6823279d..9708b6511fb07284fa7552e2de888393c6c26302 100644 (file)
--- a/xen/Makefile
+++ b/xen/Makefile
@@ -100,7 +100,7 @@ include/xen/compile.h: include/xen/compile.h.in include/xen/banner.h
            -e 's/@@version@@/$(XEN_VERSION)/g' \
            -e 's/@@subversion@@/$(XEN_SUBVERSION)/g' \
            -e 's/@@extraversion@@/$(XEN_EXTRAVERSION)/g' \
-           -e 's!@@changeset@@!$(shell (hg tip | awk '/changeset/{CS=$$2};{FS="date:[ ]+"}/date/{D=$$2}; END {print D, CS}') 2>/dev/null || echo information unavailable)!g' \
+           -e 's!@@changeset@@!$(shell (hg parents | awk -F: '/^changeset/{CS=$$3};{FS="date:[ ]+"}/^date/{D=$$2}; END {print D, CS}') 2>/dev/null || (head -6 ChangeLog | awk -F: '/^changeset/{CS=$$3};{FS="date:[ ]+"}/^date/{D=$$2}; END {print D, CS}') 2>/dev/null || echo information unavailable)!g' \
            < include/xen/compile.h.in > $@.new
        @cat include/xen/banner.h >> $@.new
        @mv -f $@.new $@