Bug 191270: passed the XXX_RETURN_ON_ERROR flags to several Mac OS X linker functions.  Correctly handle the return value of NSUnLinkModule. Pass NSADDIMAGE_OPTION_WITH_SEARCHING to NSAddImage. cvs: ----------------------------------------------------------------------
Bug 191270: passed the XXX_RETURN_ON_ERROR flags to several Mac OS X
linker functions.  Correctly handle the return value of NSUnLinkModule.
Pass NSADDIMAGE_OPTION_WITH_SEARCHING to NSAddImage.
cvs: ----------------------------------------------------------------------

thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr