root directory is C:\msys64\arena-game\src
building system
rebuilding misc.math.so because it does not exist
  "C:\msys64\usr\local\bin\csc" "-s" "-J" "-I" "C:\msys64\arena-game\src" "-C" "-I" "-C" "C:\msys64\arena-game\src" "C:\msys64\arena-game\src\misc\math.scm" "-o" "misc.math.so" "-O3" "-d2" "-strict-types" "-Ddraw-qtree" "-Dnrepl"
The filename, directory name, or volume label syntax is incorrect.
command failed with non-zero exit status: "C:\msys64\usr\local\bin\csc" "-s" "-J" "-I" "C:\msys64\arena-game\src" "-C" "-I" "-C" "C:\msys64\arena-game\src" "C:\msys64\arena-game\src\misc\math.scm" "-o" "misc.math.so" "-O3" "-d2" "-strict-types" "-Ddraw-qtree" "-Dnrepl"