Doc. system: Avoid ":=" rules in makefiles.

diff --git a/ucw/doc/Makefile b/ucw/doc/Makefile
index a9f78f4964c294972741e4a3e5c0a8e7d9d82b57..4137a627721d66376af01951d5f26b49f6d27d50 100644 (file)
--- a/ucw/doc/Makefile
+++ b/ucw/doc/Makefile
@@ -5,8 +5,8 @@ DIRS+=ucw/doc
 UCW_DOCS=fastbuf
 UCW_INDEX=$(o)/ucw/doc/index.html
 
-$(UCW_INDEX): DOC_HEAD:=$(s)/ucw/doc/index.txt
-$(UCW_INDEX): DOC_LIST:=$(patsubst %,$(o)/ucw/doc/%.deflist,$(UCW_DOCS))
+$(UCW_INDEX): DOC_HEAD=$(s)/ucw/doc/index.txt
+$(UCW_INDEX): DOC_LIST=$(patsubst %,$(o)/ucw/doc/%.deflist,$(UCW_DOCS))
 
 DOCS+=$(addprefix $(o)/ucw/doc/,$(addsuffix .html,$(UCW_DOCS)))
 DOC_INDICES+=$(UCW_INDEX)