diff --git a/streamApp/Makefile b/streamApp/Makefile
index 6c6d6ac..afd72c5 100644
--- a/streamApp/Makefile
+++ b/streamApp/Makefile
@@ -48,6 +48,16 @@ endif
 
 streamApp_DBD += stream.dbd
 
+ifdef PCRE
+LIB_LIBS += pcre
+else
+ifneq ($(words $(PCRE_LIB) $(PCRE_INCLUDE)),0)
+PROD_SYS_LIBS_DEFAULT += pcre
+PROD_SYS_LIBS_WIN32 += $(PCRE_LIB)\\pcre
+SHRLIB_DEPLIB_DIRS += $(PCRE_LIB)
+endif
+endif
+
 PROD_LIBS += $(EPICS_BASE_IOC_LIBS)
 
 # Write StreamDevice debug output to this file