Merge pull request #39 from andyque/v4

fix build warnings

Author: zilongshanren

build/build.sh

@@ -431,21 +431,21 @@ do
         fi
 
 
-        if [ -d $src_directory ];then
+        if [ -d "$src_directory" ];then
             cp  -r $src_directory/* $destination_header_path
         else
             cp $src_directory $destination_header_path
         fi
 
 
-        echo "cleaning up"
+        # echo "cleaning up"
         if [ $cfg_is_cleanup_after_build = "yes" ];then
             rm -rf $top_dir/contrib/$install_library_path
             rm -rf $top_dir/contrib/$build_library_path-$arch
         fi
     done
 
-    echo $cfg_build_fat_library
+    # echo $cfg_build_fat_library
     if [ $cfg_build_fat_library = "yes" ];then
 
         create_fat_library $archive_name
@@ -473,3 +473,5 @@ if [ $cfg_platform_name = "ios" ] || [ $cfg_platform_name = "mac" ];then
        rm -rf $cfg_platform_name/$arch
     done
 fi
+
+echo "done!"