From 5ecd2b05bfcb6ffb7216f9ae0505aa451306e598 Mon Sep 17 00:00:00 2001
From: Willem Jan Palenstijn <Willem.Jan.Palenstijn@cwi.nl>
Date: Thu, 2 Oct 2014 15:04:07 +0200
Subject: Prettify nvcc arch output slightly

---
 build/linux/acinclude.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/linux/acinclude.m4 b/build/linux/acinclude.m4
index b6c1b2d..313e849 100644
--- a/build/linux/acinclude.m4
+++ b/build/linux/acinclude.m4
@@ -93,7 +93,7 @@ for arch in $1; do
   $NVCC -c -o conftest.o conftest.cu $$2 $NVCC_opt >conftest.nvcc.out 2>&1 && {
     NVCC_lastarch=$arch
     NVCC_extra="$NVCC_extra $NVCC_opt"
-    NVCC_list="$NVCC_list $arch"
+    NVCC_list="${NVCC_list:+$NVCC_list, }$arch"
   }
 done
 if test $NVCC_lastarch != none; then
-- 
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