Contribs: use depth 1 only for HEAD

diff --git a/contrib/src/main.mak b/contrib/src/main.mak
index b3a0ada8d3f57c1aaf19ef5f1bf7bda81123fd5c..cf78d035d3287ffb2a8c4c2f6f5cd7b3fde166fc 100644 (file)
--- a/contrib/src/main.mak
+++ b/contrib/src/main.mak
@@ -296,7 +296,7 @@ HOSTVARS_PIC := $(HOSTTOOLS) \
 
 download_git = \
        rm -Rf $(@:.tar.xz=) && \
-       $(GIT) clone --depth 1 $(2:%=--branch %) $(1) $(@:.tar.xz=) && \
+       $(GIT) clone $(subst HEAD, --depth 1,$(findstring HEAD, $3)) $(2:%=--branch %) $(1) $(@:.tar.xz=) && \
        (cd $(@:.tar.xz=) && $(GIT) checkout $(3:%= %)) && \
        rm -Rf $(@:%.tar.xz=%)/.git && \
        (cd $(dir $@) && \