Update build_ninja.lua

1 files changed, 10 insertions, 8 deletions

diff --git a/xmake/plugins/project/ninja/build_ninja.lua b/xmake/plugins/project/ninja/build_ninja.lua
index 02139ec96..f9496c964 100644
--- a/xmake/plugins/project/ninja/build_ninja.lua
+++ b/xmake/plugins/project/ninja/build_ninja.lua
@@ -80,14 +80,16 @@ function _translate_compflags(compflags, outputdir)
             last_flag = flag;
         else
             if last_flag == "-I" or last_flag == "-isystem" then
-                flag = last_flag .. flag;
-            end
-            last_flag = flag;
-            for _, pattern in ipairs({ "[%-](I)(.*)", "[%-](isystem)(.*)" }) do
-                flag = flag:gsub(pattern, function(flag, dir)
-                    dir = _get_relative_unix_path(dir, outputdir)
-                    return "-" .. flag .. dir
-                end)
+                table.insert(flags, last_flag)
+                flag = _get_relative_unix_path(flag, outputdir)
+            else
+                last_flag = flag;
+                for _, pattern in ipairs({"[%-](I)(.*)", "[%-](isystem)(.*)"}) do
+                    flag = flag:gsub(pattern, function (flag, dir)
+                            dir = _get_relative_unix_path(dir, outputdir)
+                            return "-" .. flag .. dir
+                    end)
+                end
             end
             table.insert(flags, flag)
         end