Index: zsh-5.0.7/Src/zsh.mdd
===================================================================
--- zsh-5.0.7.orig/Src/zsh.mdd
+++ zsh-5.0.7/Src/zsh.mdd
@@ -23,7 +23,7 @@ hdrdeps="zshcurses.h zshterm.h"
 
 signames.c: signames1.awk signames2.awk ../config.h @SIGNAL_H@
 	$(AWK) -f $(sdir)/signames1.awk @SIGNAL_H@ >sigtmp.c
-	$(CPP) sigtmp.c >sigtmp.out
+	$(CPP) -P sigtmp.c >sigtmp.out
 	$(AWK) -f $(sdir)/signames2.awk sigtmp.out > $@
 	rm -f sigtmp.c sigtmp.out