diff --git a/mozilla/nsprpub/config/rules.mk b/mozilla/nsprpub/config/rules.mk
index 6b41a1f0fd1..27681791ee0 100644
--- a/mozilla/nsprpub/config/rules.mk
+++ b/mozilla/nsprpub/config/rules.mk
@@ -130,10 +130,14 @@ endif
 endif
 
 ifndef TARGETS
+ifdef SHARED_LIBRARY
 ifeq (,$(filter-out WINNT OS2,$(OS_ARCH)))
-TARGETS		= $(LIBRARY) $(SHARED_LIBRARY) $(IMPORT_LIBRARY)
+TARGETS		= $(SHARED_LIBRARY) $(IMPORT_LIBRARY)
 else
-TARGETS		= $(LIBRARY) $(SHARED_LIBRARY)
+TARGETS		= $(SHARED_LIBRARY)
+endif
+else
+TARGETS		= $(LIBRARY)
 endif
 endif