On Sun, 28 Jun 2009, Ralf Wildenhues wrote: > I haven't tried the --with-build-sysroot build; can somebody point out > to me what I need to do for an effective test of this? I'm pretty sure > that updating Autoconf and Automake only will not impact this feature, > though, but I'll confirm before the switch.
<http://www.eglibc.org/cgi-bin/viewcvs.cgi/*checkout*/trunk/libc/EGLIBC.cross-building?rev=2037> describes a procedure for bootstrapping a cross toolchain to a GNU/Linux target. To test with --with-build-sysroot you should install the sysroot somewhere other than the configured --with-sysroot value, which then requires passing --with-build-sysroot when configuring GCC and LDFLAGS_FOR_TARGET and CPPFLAGS_FOR_TARGET (with the appropriate --sysroot options) to make when building GCC. A typical use case would involve a relocatable toolchain and sysroot directory: configured --prefix=/some/where --with-sysroot=/some/where/sysroot but installed with "make install prefix=/other/location". In this case --with-build-time-tools may also be needed when configuring GCC because binutils also will not be in the configured location. -- Joseph S. Myers jos...@codesourcery.com
