Log message:
ccache: updated to 4.9.1

Ccache 4.9.1

Bug fixes

Improved detection of bad remote storage URLs gracefully. This also fixes \ 
crashes seen in ccache’s own test suite.
Made caching completely disabled when modification of a source or include file \ 
is detected during ccache invocation. Previously this was only done for the \ 
direct mode.
Fixed an MSVC crash when using /Zi with many concurrent compilations.
Fixed a crash when -arch is the last compiler option.

Log message:
ccache: updated to 4.9

Ccache 4.9

New features and improvements

Made ignore_options/CCACHE_IGNOREOPTIONS also skip the option from special \ 
processing, similar to how --ccache-skip works.
Added support for expanding environment variables references in all \ 
configuration options.
MSVC options /Fd, /FS and /MP are no longer included in the input hash.
Made ccache terminate an ongoing compiler subprocess when terminated on all \ 
platforms, not only on Unix.
Added support for multiple -Xarch_* arguments matching -arch.
Added a debug_level/CCACHE_DEBUGLEVEL configuration option, making it possible \ 
to tell ccache to only write a log file for each compilation, not other debug \ 
files.
Added max_cache_size_kibibyte and max_files_in_cache fields in output from \ 
ccache --print-stats.
Paths after -Xclang -include are now rewritten to relative paths if \ 
base_dir/CCACHE_BASEDIR is in effect.
Added support for clang --analyze.
Improved processing of input file arguments.
Added support for st_Xtimensec fields in struct stat, thus improving behavior on \ 
some BSDs when using newly created include files.
Added support for the undocumented GCC/Clang option --include.

Bug fixes

Ccache now exits more gracefully on invalid sharded remote storage URLs.
Made ccache bail out on too hard options -fmodules-ts, -fmodule-header, -wrapper \ 
and -Xclang -ast-dump.
Stopped relying on the st_blocks field in struct stat since it cannot be trusted \ 
for filesystems such as ZFS that do transparent compression or deduplication and \ 
adjust st_blocks some time in the future.
Fixed crash on Windows for paths with only a drive letter.
Made handling of Clang config options (such as --config-system-dir) more robust.
Fixed compiler type detection when compiler is a symlink called “clang-cl”.
Made sure to use MSVC logic for clang-cl when handling a precompiled header.
Generalized expansion of remote storage URLs with sharding, for instance making \ 
it possible to shard on port number.

Build improvements

Upgraded to xxHash 0.8.2, thereby fixing an error when compiling ccache with -Og.
Fixed sign-compare warning in src/InodeCache.cpp on FreeBSD.
Fixed the CMake option STATIC_LINK on Linux/macOS.
Added the CMake option OFFLINE, defaulting to the value of the standard variable \ 
FETCHCONTENT_FULLY_DISCONNECTED (which is OFF by default), to disable \ 
downloading anything from the internet.
Fixed warnings about unused functions on new MSVC versions.
Made sure to set both C and C++ CMake compiler launcher variables if either is set.

Documentation improvements

The manual now mentions that system_headers sloppiness is not supported for MSVC.

Test improvements

Fixed regex in direct.bash.

Log message:
ccache: updated to 4.8.3

Ccache 4.8.3

Bug fixes

Fixed various problems with parsing of MSVC response file (.rsp).

Fixed handling of NVCC -Xcompiler and --Werror options.

Fixed bookkeeping of files when hard linking or file cloning is enabled. In \ 
ccache 4.8–4.8.2 this could result in incorrect size/count statistics after \ 
automatic or explicit cleanup.

Build improvements

Made a workaround for GCC 12.3 bug 109241 where GCC fails to compile ccache.

Upgraded to xxHash 0.8.2, which fixes compilation of ccache with GCC 12 and -Og.

Log message:
ccache: work around ICE with GCC 12.3. From upstream.

Log message:
devel: Adapt packages to use USE_(CC|CXX)_FEATURES

Log message:
ccache: SunOS needs libsocket.

Log message:
ccache: updated to 4.8.2

Ccache 4.8.2

Bug fixes
Fixed parsing of Windows drive letter in file URLs for remote storage.

Fixed a bug affecting depend mode with MSVC.

Ccache no longer passes -v to the preprocessor. This improves preprocessor mode \ 
hit rate when -v is on the compiler command line.

Made --trim-max-size accept 0 for no limit.

Build improvements
Made various fixes for Windows 64-bit MSBuild builds.

Silenced CMake warning for extracted timestamps.

Worked around problem with building ZStandard with Xcode.

Fixed undefined behavior (only triggered by unit tests) in util::read_file_part \ 
for zero count, making the build fail with _GLIBCXX_ASSERTIONS.

Documentation improvements
Clarified --evict-older-than semantics.

Test improvements
Fixed typo in “Directory is not hashed if using -gz” test.

Log message:
ccache: updated to 4.8.1

Ccache 4.8.1

Bug fixes
Fixed an issue with the depend mode in combination with -- on the command line \ 
for Clang-based compilers.
Improved knowledge about MSVC debug flags so that non-debug /Z* options are once \ 
again supported.
Ccache no longer treats /Zi as unsupported for clang-cl.
Made the output format of ccache -k max_size parsable by ccache itself.

Build/CI improvements
Corrected ccache version in the macOS binary release.
Made it possible to build ccache with clang-cl on Windows.
Upgraded to doctest 2.4.11, thereby fixing a build issue on Solaris.

Documentation improvements
Added a remote file storage example with URL-encoded spaces.

Log message:
*: GCC_REQD must always be appended to.

Log message:
ccache: switch to cmake/build.mk