- The EAGAIN signal is now handled correctly when emitting cached stderr
output. This fixes a problem triggered by large error outputs from the
compiler.
- Subdirectories in the cache are no longer created in read-only mode.
- Fixed so that ccache's log file descriptor is not made available to the
compiler.
- Improved error reporting when failing to create temporary stdout/stderr
files when executing the compiler.
- Disappearing temporary stdout/stderr files are now handled gracefully.