- fix all fixable errors in at most two runs
- rename disks
- support searching for files in additional directories
- detect faked ROMs (correct CRC, wrong MD5/SHA1)
- adapt mkmamedb-xmame.sh for MAME version numbers of 0.100 and above
- dropped support for inferring flags/status from CRC (old MAME versions)
- deprecated -u/-U command line options
- simplify ROM matching logic
- many new regression tests, causing
- various bug fixes
file's sole purpose was to provide a dependency on pkg-config and set
some environment variables. Instead, turn pkg-config into a "tool"
in the tools framework, where the pkg-config wrapper automatically
adds PKG_CONFIG_LIBDIR to the environment before invoking the real
pkg-config.
For all package Makefiles that included pkg-config/buildlink3.mk, remove
that inclusion and replace it with USE_TOOLS+=pkg-config.
