57119aa9eb
* configure: Make enable_threads and enable_shared defaults explicit. Substitute enable_threads into generated Makefiles. * configure.in: Accept *-*-linux* not just *-*-linux-gnu*. * libtool.m4: Accept *-*-linux* not just *-*-linux-gnu*. gcc: * configure.in: Accept *-*-linux* not just *-*-linux-gnu*. * fixinc/inclhack.def: Likewise. * fixinc/mkfixinc.sh: Likewise. * configure: Regenerate. * fixinc/fixincl.x: Regenerate. * install.texi: Document equivalence of linux and linux-gnu. libio: * configure.in: Accept *-*-linux* not just *-*-linux-gnu*. Honor --disable-threads. libstdc++: * configure.in: Accept *-*-linux* not just *-*-linux-gnu*. Honor --disable-threads. libstdc++-v3: * configure: Regenerate after change to ../libtool.m4. libobjc: * configure: Regenerate after change to ../libtool.m4. From-SVN: r35680