Clasp v2.2.0

Version 2.2.0 (LLVM15) 2023-03-01

Added

• ext:describe-compiler-policy to get information about the current
  behavior of the compiler.
• gray:stream-line-length Gray stream extension method.
• Support for building Clasp using CCL and ECL versus the default
  implementation of SBCL.
• Export of ext:num-logical-processors to return CPU count.

Changed

• Updated to LLVM 15 and CLANG 15.

Fixes

• Ensure that print-unreadable-object can accept output stream designators.
• Set stream column to zero after printing the prompt in a REPL. Fixes #1348.
• Return correct values for listen when applied to file streams. This is done
  by checking for available bytes using read when poll/select indicate the next
  read will not block. Otherwise use non-blocking read. Fixes #1404.
• Prevent format parameters from appearing after colon or at sign modifiers.
• Avoid putting NIL into simple LOOP when compiling format directives.

Optimizations

• Arithmetic comparisons between floats and fixnums no longer cons.