0001-signames.patch

diff --git a/Src/zsh.mdd b/Src/zsh.mdd
--- a/Src/zsh.mdd
+++ b/Src/zsh.mdd
@@ -22,9 +22,18 @@ hdrdeps="zshcurses.h zshterm.h"
 :<<\Make
 @CONFIG_MK@

+# If we're using gcc as the preprocessor, get rid of the additional
+# lines generated by the preprocessor as they can confuse the script.
+# We don't need these in other cases either, but can't necessarily rely
+# on the option to remove them being the same.
 signames.c: signames1.awk signames2.awk ../config.h @SIGNAL_H@
 	$(AWK) -f $(sdir)/signames1.awk @SIGNAL_H@ >sigtmp.c
-	$(CPP) sigtmp.c >sigtmp.out
+	case "`$(CPP) --version </dev/null 2>&1`" in \
+	*"Free Software Foundation"*) \
+	$(CPP) -P sigtmp.c >sigtmp.out;; \
+	*) \
+	$(CPP) sigtmp.c >sigtmp.out;; \
+	esac
 	$(AWK) -f $(sdir)/signames2.awk sigtmp.out > $@
 	rm -f sigtmp.c sigtmp.out