27908 ::gcore breaks sparc build

@@ -68,5 +68,7 @@
 CERRWARN += -_gcc=-Wno-char-subscripts
 CERRWARN += -_gcc=-Wno-unused-label
 CERRWARN += -_gcc=-Wno-uninitialized
 CERRWARN += -_gcc=-Wno-parentheses
 CERRWARN += -_gcc=-Wno-type-limits
+
+MODSRCS_DIR = ../../../sparc/modules/genunix