Improvements

• Detection of MAC and IPHONE platforms has been improved (#2140, #2157)
• Added workaround for bug in XLC 16.1.0.1 (#2155)
• Add detection for LCC when it is masquerading as GCC (#2199)
• Modified posix signal handling so it supports newer libcs (#2178)
  • MINSIGSTKSZ was no longer usable in constexpr context.

Fixes

• Fixed compilation of benchmarking when min and max macros are defined (#2159)
  • Including windows.h without NOMINMAX remains a really bad idea, don't do it

Miscellaneous

• Catch2WithMain target (static library) is no longer built by default (#2142)
  • Building it by default was at best unnecessary overhead for people not using it, and at worst it caused trouble with install paths
  • To have it built, set CMake option CATCH_BUILD_STATIC_LIBRARY to ON
• The check whether Catch2 is being built as a subproject is now more reliable (#2202, #2204)
  • The problem was that if the variable name used internally was defined the project including Catch2 as subproject, it would not be properly overwritten for Catch2's CMake.