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GCC and Clang communities are hinting that in versions 14 and 16 respectively they will deprecate or disable legacy C89 features, e.g. K&R1 style function definitions, among others. In parallel, Fedora is going to start enforcing C99 as the minimum, expected to land in F40. (I.e. around Spring 2024 IIRC.) Currently Fedora is recommending that use of -Werror=implicit-int, -Werror=implicit-function-declaration, -Werror=int-conversion, -Werror=strict-prototypes, and -Werror=old-style-definition a set of options to build with in the mean time to clean up code. This change fixes a subset of the errors found when compiling with this set of options. Change-Id: Ia436ef321ad7963331d5cc813c98880525d0525e Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>