Christer Solskogen <christer.solskogen@xxxxxxxxx> writes: > I've been reading the documentation for it, but quite don't > understand. When gcc is compiled (and installed) with > --with-sysroot=DIR (and prefix is set to the same) will that effect > how gcc it self is built or the how the newly installed gcc will > behave afterwords? or both? The primary effect of the --with-sysroot option is on how gcc works after it has been built and installed. However, there is also an effect on the build: if you use --with-sysroot, then when gcc is building library code which runs on the target, it will use header files and libraries from the specified sysroot. See also --with-build-sysroot. Note that you should normally only set --prefix and --with-sysroot to the same directory when using a cross-compiler to build a native compiler that runs on some other system. You should not normally use it when building a cross-compiler. Ian
