diff -urN ../exim-4.93.orig/src/EDITME ./src/EDITME
--- ../exim-4.93.orig/src/EDITME	2019-12-08 14:53:48.000000000 +0200
+++ ./src/EDITME	2020-02-22 16:22:55.803471000 +0200
@@ -1485,3 +1485,5 @@
 # CFLAGS += -DMEASURE_TIMING
 
 # End of EDITME for Exim 4.
+
+CFLAGS += -DTAINT_CHECK_SLOW