On Mon, Jan 7, 2013 at 2:47 AM, Dmitry Mikushin <dmi...@kernelgen.org> wrote: > > We have a version of GCC coming as additional toolchain for several > supported Linux distros. Moreover, package we are shipping also contains > modified glibc and some other libraries. In this situation, applications > built with this compiler should first logically use its own sysroot, but in > case when a header/library from host's sysroot is needed - fallback to the > default "/usr" sysroot. I think this could be accomplished by providing two > sysroots - one primary, and secondary - to complement it for the rest of > things. Looks like currently gcc only supports a single setting for > TARGET_SYSTEM_ROOT. Do you see any other options regarding this issue?
You are correct: GCC only supports a single system root. But I think you can do what you want with appropriate -I and -L options, perhaps via the C_INCLUDE_PATH and LIBRARY_PATH environment variables. Ian
