Fixed setup.sh for mac

mk/macos/build-deps.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 brew install sdl2 lua fontconfig freetype ftgl libogg glew libvorbis cppunit glib fribidi miniupnpc wxmac
 brew outdated cmake || brew upgrade cmake; brew outdated pkgconfig || brew upgrade pkgconfig
 brew install Caskroom/cask/xquartz

mk/macos/setup.sh

@@ -1,10 +1,10 @@
-#!/bin/bash
+#!/bin/sh
 echo
 echo "Initializing Glest setup..."
 currentDir=$PWD
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
 cd $DIR
-./build-deps.sh
+bash ./build-deps.sh
 echo
-./build.sh
+bash ./build.sh
 cd $currentDir