I have a problem with gcc not finding location for stddef.h include file when it is invoked from directory other than <install_prefix>/bin. Output from gcc invocation with -v option contains the following:
ignoring nonexistent directory "../lib/gcc..." i.e. gcc is trying to find include files in directory with relative path. So it is works only when working directory is /usr/bin, where gcc is installed. Why gcc looks for headers in directories with relative paths ? I configured gcc with --prefix=/usr. The gcc was built with cross-compiler. Thanks in advance.