...(which cause -Werror,-Wdeprecated-declarations with macOS 13 SDK), by making CffSubsetterContext::getString, and in turn CffSubsetterContext::getGlyphName, return OString. Which in turn required adding rtl::OStringConstExpr and OString::unacquired counterparts of rtl/ustring.hxx functionality to rtl/string.hxx. (It's not quite clear to me whether the nMaxLen clipping in CffSubsetterContext::getString was only there to avoid overflow of the-- somewhat arbitrarily sized?---static aNameBuf, so could go now, or rather served as a more general safety measure to not read past the mpReadPtr buffer end and should thus remain. Hence, I added a TODO comment for now.) Change-Id: I473d5a54a4be5b02917e197391e4f0982dcf690c Reviewed-on: https://gerrit.libreoffice.org/c/core/+/142412 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <sbergman@redhat.com>