Mark Mitchell <mark@xxxxxxxxxxxxxxxx> writes: > Ian Lance Taylor wrote: > >> http://gcc.gnu.org/ml/libstdc++/2006-06/msg00053.html >> >> You are quite right that doc/install.texi was not updated to correct the >> documented default. > > The logic is: > > if test x${gcc_gxx_include_dir} = x; then > if test x${enable_version_specific_runtime_libs} = xyes; then > gcc_gxx_include_dir='${libsubdir}/include/c++' > else > libstdcxx_incdir='include/c++/$(version)' > if test x$host != x$target; then > libstdcxx_incdir="$target_alias/$libstdcxx_incdir" > fi > > gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir\ > " > fi > fi > > Do we want to try to describe all that? It seems pretty obscure. Well, right now it says: @item --with-gxx-include-dir=@var{dirname} Specify the installation directory for G++ header files. The default is @file{@var{prefix}/include/c++/@var{version}}. and that is incorrect. Personally, I would be fine with something like "the default depends upon how gcc was configured." Ian