* New option parser features to implement system wide configuration
files.
* New functions to build file names.
* New function to help reallocating arrays.
* Protect gpgrt_inc_errorcount against counter overflow.
* Improve cross-building for new platforms. [T4774]
* Support 64-bit big-endian MIPS architecture. [T4952]
* Support static link for Windows with -lws2_32. [T4623]
* Interface changes relative to the 1.37 release:
gpgrt_fnameconcat NEW.
gpgrt_absfnameconcat NEW.
gpgrt_reallocarray NEW.
gpgrt_set_confdir NEW.
gpgrt_argparser NEW.
ARGPARSE_FLAG_SYS NEW.
ARGPARSE_FLAG_USER NEW.
ARGPARSE_FLAG_VERBOSE NEW.
ARGPARSE_FLAG_USERVERS NEW.
ARGPARSE_FLAG_WITHATTR NEW.
ARGPARSE_NO_CONFFILE NEW.
ARGPARSE_CONFFILE NEW.
ARGPARSE_OPT_CONFFILE NEW.
ARGPARSE_ATTR_FORCE NEW.
ARGPARSE_ATTR_IGNORE NEW.
ARGPARSE_TYPE_MASK NEW.
ARGPARSE_PERMISSION_ERROR NEW.
ARGPARSE_INVALID_META NEW.
ARGPARSE_UNKNOWN_META NEW.
ARGPARSE_UNEXPECTED_META NEW.
ARGPARSE_conffile NEW.
ARGPARSE_noconffile NEW.
ARGPARSE_verbatim NEW.
ARGPARSE_header NEW.
GPGRT_CONFDIR_USER NEW.
GPGRT_CONFDIR_SYS NEW.