lib: move compat links from targetdirs to proper makefiles

@@ -31,6 +31,6 @@
 # the whole 64-bit library with PIC instead of "generically" compiling
 # large parts of the 32-bit library with PIC unnecessarily.
 
 sparcv9_C_PICFLAGS = $(sparcv9_C_BIGPICFLAGS)
 
-install: all $(ROOTLIBS64) $(ROOTLINKS64)
+install: all $(ROOTLIBS64) $(ROOTLINKS64) $(ROOTCOMPATLINKS64)