This patch adds a function ldirname to libiberty. It is implemented
in terms of lbasename. Basically, given a given pathname, the dirname
part is what is not the basename minus the last directory separator
separating the dirname with the basename.
include/ChangeLog
* libiberty.h (ldirname): New function declaration.
(dos_ldirname): Likewise.
(unix_ldirname): Likewise.
libiberty/ChangeLog
* ldirname.c: New file.
* Makefile.in (CFILES): Add ldirname.c.
(REQUIRED_OFILES): Add ldirname.$(objext).
(./ldirname.$(objext)): New rule.
* makefile.vms (OBJS): Add ldirname.obj.
* configure.com (FILES): Add ldirname.
31dd621796