$ CHICKEN_EGG_CACHE=/cache chicken-install sdl2
building sdl2
   C:/msys64/cache\sdl2\custom-build.sh.bat -host -D compiling-extension -J -s -regenerate-import-libraries -setup-mode -I C:/msys64/cache\sdl2 -C -IC:/msys64/cache\sdl2 -O2 -d1 sdl2-features.scm -o C:/msys64/cache\sdl2\sdl2-features.so
creating subprocess failed

Error: shell command terminated with nonzero exit code
1
"C:/msys64/cache\\sdl2\\sdl2.build.bat"