1*2a52ca7cSTejun Heo /* 2*2a52ca7cSTejun Heo * Dummy gnu/stubs.h. clang can end up including /usr/include/gnu/stubs.h when 3*2a52ca7cSTejun Heo * compiling BPF files although its content doesn't play any role. The file in 4*2a52ca7cSTejun Heo * turn includes stubs-64.h or stubs-32.h depending on whether __x86_64__ is 5*2a52ca7cSTejun Heo * defined. When compiling a BPF source, __x86_64__ isn't set and thus 6*2a52ca7cSTejun Heo * stubs-32.h is selected. However, the file is not there if the system doesn't 7*2a52ca7cSTejun Heo * have 32bit glibc devel package installed leading to a build failure. 8*2a52ca7cSTejun Heo * 9*2a52ca7cSTejun Heo * The problem is worked around by making this file available in the include 10*2a52ca7cSTejun Heo * search paths before the system one when building BPF. 11*2a52ca7cSTejun Heo */ 12