FIX failure due to set -e when all dependencies are installed

diff --git a/summon-arm-toolchain b/summon-arm-toolchain
index 7aab2cfa5d35d699b7ebae5f46bd3be36cadfd26..eb729453ca7ec385bd42f948ad20ac2d82a2f822 100755 (executable)
--- a/summon-arm-toolchain
+++ b/summon-arm-toolchain
@@ -123,7 +123,7 @@ case "$(uname)" in
   if ! which brew > /dev/null; then
     echo "homebrew not installed."
   else
-    brew install ${DARWINDEPS} | grep -v '^Warning: Formula already installed: '
+      brew install ${DARWINDEPS} | (grep -v '^Warning: Formula already installed: ' || true)
   fi
 
   GCCFLAGS="${GCCFLAGS} \