Gwenhywfar

Fix compilation under MacOS

Released 5.12.0

Prepared release 5.12.0

msgio: add argument REASON to GWEN_MsgRequest_Abort()

msgio: add class GWEN_REQUEST.

msgio/endpoint: added reference counter.

timestamp: added GWEN_Timestamp_AddSeconds().

msgio: improved error handling.

test: adjusted to latest changes.

parser: fixed a typo.

msgio: added fields ID and REFID to ipc messages. Use new convenience fns of GWEN_MSG.

msgio: added missing change.

msgio: improved GWEN_MSG, added convenience functions.

msgio: introduce GWEN_MsgEndpoint_GetNextMessageId()

Use pkgconf for gpg-error build flags

On some build systems the old automake macro AM_PATH_GPG_ERROR doesn't work
because the binary gpg-error-config no longer exists. As a gpg-error.pc file is
available, let's switch to this more contemporary approach to determine the...

Fixed call to readlink().

readlink() doesn't append a NULL!!

gsa: fixed handling of symbolic links.

incremented version.

gwenbuild: use lstat if possible (otherwise symbolic links will be resolved).

gwenbuild: also install symbolic links for libs.

Incremented version.

README: remove var from documentation (no longer used).

Added GWENHYWFAR_CB to function implementations also (seems to be required from MinGW64, see #306)

Use GWEN_Text_strndup() instead of strndup (the latter is not available with MinGW64).

Added license info for portable_endian.h (public domain).