| # All the Lit configuration is handled in the site configs -- this file is only | 
 | # left as a canary to catch invocations of Lit that do not go through llvm-lit. | 
 | # | 
 | # Invocations that go through llvm-lit will automatically use the right Lit | 
 | # site configuration inside the build directory. | 
 |  | 
 | lit_config.fatal( | 
 |     "You seem to be running Lit directly -- you should be running Lit through " | 
 |     "<build>/bin/llvm-lit, which will ensure that the right Lit configuration " | 
 |     "file is used. See https://libcxx.llvm.org/TestingLibcxx.html#usage for " | 
 |     "how to run the libc++ tests." | 
 | ) |