nls?
      ( virtual/libiconv virtual/libintl )

app-forensics/libbfio[nls=,unicode=,threads=]
dev-libs/libcdata[nls=]
dev-libs/libcerror[nls=]
dev-libs/libcfile[nls=,unicode=]
dev-libs/libclocale[nls=,unicode=]
dev-libs/libcnotify[nls=]
dev-libs/libcpath[nls=,unicode=]
dev-libs/libcsplit[nls=,unicode=]
dev-libs/libcthreads[nls=]
dev-libs/libfcache[nls=]
dev-libs/libfdata[nls=,threads=]
dev-libs/libfdatetime[nls=]
dev-libs/libfguid[nls=]
dev-libs/libftxf[nls=]
dev-libs/libftxr[nls=]
dev-libs/libfusn[nls=]
dev-libs/libfwnt[nls=,threads=]
dev-libs/libuna[nls=,unicode=]