diff --git a/cde/programs/dtappbuilder/src/libAButil/util.h b/cde/programs/dtappbuilder/src/libAButil/util.h
index 8b9167d89..b0f68c7cb 100644
--- a/cde/programs/dtappbuilder/src/libAButil/util.h
+++ b/cde/programs/dtappbuilder/src/libAButil/util.h
@@ -66,7 +66,9 @@
 extern "C" {
 #endif
 
+#if !defined(linux)
 extern char	*strdup(const char *);
+#endif
 
 #ifdef __cplusplus
 } /*extern "C" */