linux – What is a sysroot exactly and how do I create one ?
A sysroot is a directory which is considered to be the root directory for the purpose of locating headers and libraries. So for example if your build toolchain wants to find
/usr/include/foo.h but you are cross-compiling and the appropriate
foo.h is in
/my/other/place/usr/include/foo.h, you would use
/my/other/place as your sysroot.