Ccache version 4.2.1 is now available. Release archives can be found here:
https://ccache.dev/download.html
Bug fixes:
- Ccache now only “dup2”s stderr into “$UNCACHED_ERR_FD” for calls to the
preprocessor/compiler. This works around a complex bug in interaction with
GNU Make, LTO linking and the Linux PTY driver.
- Fixed detection of color diagnostics usage when using “-Xclang
-fcolor-diagnostics” options.
- The “-frecord-gcc-switches” compiler option is now handled correctly to
avoid false positive cache hits.
- Made it possible for per-compilation debug log files to be written in most
argument processing error scenarios. Previously, ccache would only write
debug log files if the argument processing phase was successful.
- Made ccache bail out on too hard Clang option “-gen-cdb-fragment-path”.
- The “run_second_cpp” made is now enforced on macOS if “-g” is used since
newer Clang versions on macOS produce different debug information when
compiling preprocessed code.
- Made ccache only reject “-f(no-)color-diagnostics” for a known GCC
compiler. This fixes a problem when using said option with Clang on macOS.
- Implemented a better “stat”/“lstat” wrapper function for Windows.
- Fixed a bug where ccache could return stale cache results on Windows.
- Fixed handling of long command lines on Windows.
Portability and build improvements:
- Build configuration scripts now probe for atomic increment as well. This
fixes a linking error on Sparc.
- An existing CMake log message level is now used when warning about not
finding asciidoc.
- Added support for building ccache with xlclang++ on AIX 7.2.
- Fixed assertion in the "Debug option" test.
- Made build configuration skip using ccache when building with MSVC.
- Upgraded to doctest 2.4.6. This fixes a build error with glibc >= 2.34.
Documentation:
- Fixed markup of “compiler_type” value "other".
- Fixed markup of “debug_dir” documentation.
- Fixed references to the “extra_files_to_hash” configuration option.
Contributors (in alphabetical order) to this release:
- Abubakar Nur Khalil
- Aleksander Salwa
- Evangelos Foutras
- Joel Rosdahl
- Jon Petrissans
- Nicholas Hutchinson
- Pawel Krysiak
- Sergei Trofimovich
- Thomas Otto
Thanks!
-- Joel
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