While cross-compiling the 'igt-gpu-tools-1.23' tag in the ChromeOS environment, which uses Clang, I observed the following error: tests/gem_userptr_blits.c:1092:10: error: implicit declaration of function 'memfd_create' is invalid in C99 [-Werror,-Wimplicit-function-declaration] memfd = memfd_create("pages", 0); This issue is resolved by the following commit (20 commits after tag): bcb37a9 build: provide stub implementation for memfd_create
As you noted, Lucas landed a patch shortly after the 1.23 release that addressed this. Since that time an official 1.24 release has come out, so I don't believe there's anything further that needs to be done with this bug. Closing as resolved.
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