From 4b12356064a9c680114bf573baa4f49bf958fd32 Mon Sep 17 00:00:00 2001
From: Wolfgang Thaller <wolfgang.thaller@gmx.net>
Date: Fri, 19 Sep 2014 19:02:17 +0200
Subject: [PATCH] make build script slightly more robust

---
 build-toolchain.sh | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/build-toolchain.sh b/build-toolchain.sh
index 565e103514..55c47a2fa7 100644
--- a/build-toolchain.sh
+++ b/build-toolchain.sh
@@ -82,9 +82,11 @@ cd ..
 
 make -C build-host install
 
-mv $PREFIX/bin/m68k-unknown-elf-as $PREFIX/bin/m68k-unknown-elf-as.real
-ln -s $PREFIX/bin/asfilter $PREFIX/bin/m68k-unknown-elf-as
-mv $PREFIX/m68k-unknown-elf/bin/as $PREFIX/m68k-unknown-elf/bin/as.real
-ln -s $PREFIX/bin/asfilter $PREFIX/m68k-unknown-elf/bin/as
+if test ! -e $PREFIX/bin/m68k-unknown-elf-as.real; then
+	mv $PREFIX/bin/m68k-unknown-elf-as $PREFIX/bin/m68k-unknown-elf-as.real
+	ln -s $PREFIX/bin/asfilter $PREFIX/bin/m68k-unknown-elf-as
+	mv $PREFIX/m68k-unknown-elf/bin/as $PREFIX/m68k-unknown-elf/bin/as.real
+	ln -s $PREFIX/bin/asfilter $PREFIX/m68k-unknown-elf/bin/as
+fi
 
 make -C build-target install