From 4b5efa150a93c141640e38659e8210182279834e Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Thu, 18 May 2017 08:30:18 +0100
Subject: Make the symlinking in 'make install' idempotent.

---
 Makefile.am | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 1e25726..786ca13 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -16,5 +16,7 @@ libpreload_la_LDFLAGS = -ldl
 bin_SCRIPTS = wrapper.py makecab.py
 
 install-exec-hook:
-	cd $(DESTDIR)$(bindir) && $(LN_S) wrapper.py candle
-	cd $(DESTDIR)$(bindir) && $(LN_S) wrapper.py light
+	cd $(DESTDIR)$(bindir) && \
+		{ test -h candle || $(LN_S) wrapper.py candle; }
+	cd $(DESTDIR)$(bindir) && \
+		{ test -h light || $(LN_S) wrapper.py light; }
-- 
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