Do not compress changelog during build.

--- a/doc/Makefile
+++ b/doc/Makefile
@@ -12,7 +12,7 @@ LSRCFILES = INSTALL CHANGES COPYING $(README) \
 
 LDIRT = *.gz
 
-default: CHANGES.gz
+default:
 
 include $(BUILDRULES)
 
@@ -22,7 +22,7 @@ CHANGES.gz:
 
 install: default
 	$(INSTALL) -m 755 -d $(PKG_DOC_DIR)
-	$(INSTALL) -m 644 CHANGES.gz $(README) $(PKG_DOC_DIR)
+	$(INSTALL) -m 644 CHANGES $(README) $(PKG_DOC_DIR)
 ifeq ($(PKG_DISTRIBUTION), debian)
 	$(INSTALL) -S CHANGES.gz $(PKG_DOC_DIR)/changelog.gz
 else