configure: Look for msgpack-c.pc in addition to msgpack.pc.
The binutils configure script now checks for `msgpack-c.pc` as well as `msgpack.pc` to find the msgpack library.
The binutils configure script now checks for both msgpack-c.pc and msgpack.pc when searching for the msgpack library. This resolves an issue where the configure script would error out if only msgpack-c was installed. The configure script is updated to handle missing msgpack packages more gracefully.
In Details
The configure script in binutils uses PKG_CHECK_MODULES to detect dependencies. This commit modifies configure.ac to check for msgpack-c before msgpack, ensuring that the configure process correctly identifies the presence of either library. The change involves updating PKG_CHECK_MODULES in configure.ac and regenerating the configure script.
For Context
The configure script in binutils checks for the presence of required libraries and tools before building the project. pkg-config is a utility that provides information about installed libraries. This commit ensures that the configure script correctly detects the msgpack library, used for serialization, whether it's installed as msgpack or msgpack-c.