From 700c076629379228dd36bd941e4f0c874ac6c2da Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Fri, 3 Jun 2016 15:25:43 -0700
Subject: [PATCH] Provide our own psqlscan.l->psqlscan.l rule.

As postgres's generic .l -> .c Makefile rule uses ifdef - which is
evaluated early, not during rule evaluation - we have to override the
rule, in addition to the detection of FLEX in the previous commit.

Fixes: #439
---
 src/bin/csql/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/bin/csql/Makefile b/src/bin/csql/Makefile
index d444c535e..470031999 100644
--- a/src/bin/csql/Makefile
+++ b/src/bin/csql/Makefile
@@ -36,7 +36,9 @@ override CPPFLAGS := -I$(client_includes) -I$(libpq_srcdir) -I$(citus_abs_top_sr
 # psqlscan is compiled as part of mainloop
 mainloop.o: psqlscan.c
 psqlscan.c: FLEXFLAGS = -Cfe -p -p
-psqlscan.c: FLEX_NO_BACKUP=yes
+
+psqlscan.c: psqlscan.l
+	$(FLEX) $(FLEXFLAGS) -o'$@' $<
 
 clean: csql-clean
 csql-clean: