Log Message:
ccache: updated to 3.7.12

ccache 3.7.12

Bug fixes
Coverage files (.gcno) produced by GCC 9+ when using -fprofile-dir=dir are now \ 
handled gracefully by falling back to running the compiler.
Fixed writing to log file larger than 2 GiB when running ccache compiled in \ 
32-bit mode.

Other
Improved documentation about sharing a cache on NFS.
Fixed test case failures with old objdump versions.
Fixed test case failures with GCC 4.4.