title: Emscripten trailing backslash in clang compiler options invalid
body: <p>I am using Emscripten to compile a c++ static library to Webassembly. In the compiler options I want to set the output directory by <strong>-Fo&quot;C:\GIT\Test\&quot;</strong>. According to the official clang documentation the directory must end with a backslash. However, Emscripten cannot handle the trailing backslash and ignores this directory. The directory is also ignored if the backslash is omitted. I am using Emscripten 3.1.18.</p>
  <p>If I use the Clang-compiler for windows installed by Visual Studio, the compilation with the output directory followed by a backslash is valid and considered.</p>
  <p>What am I doing wrong? Maybe someone can help me. :)</p>