use gnulib to provide the newest implementation of getopt_long()#25

Open

mywave82 wants to merge 2 commits intoadplug:masterfrom

mywave82:gnulib

Commits on Apr 3, 2023

config.h generated by autoheader should be included directly by the .cc files on not .h files, since it by default does not contain any guards.
mywave82
committed
Use gnulib to provide getopt_long()
mywave82
committed