Added import libs dependency for make install.

diff --git a/dlls/make_dlls b/dlls/make_dlls
index 0087030..2303798 100755
--- a/dlls/make_dlls
+++ b/dlls/make_dlls
@@ -247,6 +247,7 @@
 print NEWMAKE <<EOF;
 
 \$(SUBDIRS): \$(IMPORT_LIBS:%=%.\$(IMPLIBEXT))
+\$(SUBDIRS:%=%/__install__): \$(IMPORT_LIBS:%=%.\$(IMPLIBEXT))
 \$(SUBDIRS:%=%/__crosstest__): \$(IMPORT_LIBS:%=%.a)
 
 EOF