* src/Makefile.am (libstdc___la_LIBADD): Use top_builddir
for convenience libraries.
(version_arg): Rename linker.map to libstdc++.ver.
* src/Makefile.am (libstdc___la_LIBADD): Use top_builddir
for convenience libraries.
(version_arg): Rename linker.map to libstdc++.ver.