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Re: [discuss] Re: --with-sysroot required when building 32->64 bitcrosstoolchain? (was: building a cross-compiler is hard)
Daniel Jacobowitz wrote:
It matters that it's a 32/64 bit cross environment because otherwise
I wouldn't need --with-sysroot...
You can use --with-sysroot for binutils without using it for GCC. It's
not necessarily a good idea though.
I'm trying it throughout. It's hard to figure out how to use, though.
I had been jimmying things so there is no /usr, i.e. so all libraries are
in $PREFIX/lib, all includes in $PREFIX/include, as is customary when
building cross-compilers. But I get the feeling that --with-sysroot wants
me to do things the LSB way, with a split between /lib and /usr/lib,
so I'm giving that a shot. Needless to say, this is painful. I'm
currently stuck building crtbegin.o because for some reason
xgcc is being told to look in $PREFIX/include... gotta figure out
where I missed adding a /usr ... grumble.
Try a symlink usr -> . then?
That might get me past my present trouble, but since I'm
trying to target normal Linux distributions with the
executables my tools build, I wonder if their embedded
paths might be a tad screwed up. Ah, well, I suppose
I could always make my users add lots of symlinks :-)