OGDI 4.1.1

o Fix various compiler warnings, in particular for gcc 14 (fixes #23)
o Remove ogdi/attr_driver subdirectory (ODBC stuff) (fixes #23)
o Support GNU Hurd
o Support hardening buildflags set in the environment
o contrib/gdal: Fix C99 compatibility issue
o Add link libraries accordingly: $(EXPAT_LINKLIB), etc. (PR #16)

OGDI 4.1.0

4.1.0

o Remove DTED driver that used the ecsrregex.c functionality removed in the
below bullet.
o Remove ogdi/c-api/ecshash.c and ogdi/c-api/ecsregex.c, which were considered
incompatible of DFSG & OSD (#13)