https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111323
Xi Ruoyao <xry111 at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |INVALID CC| |xry111 at gcc dot gnu.org Status|UNCONFIRMED |RESOLVED --- Comment #1 from Xi Ruoyao <xry111 at gcc dot gnu.org> --- You are misusing the kernel building system: 1. The kernel building system explicitly specifies -std=gnu11 so you don't need to add it. You should be able to see it via "make KDIR=... V=1". 2. "hello-y := hello.o" introduces a circular dependency. 3. The kernel building system suggests to use ccflags-y += ..., not CFLAGS += ... Read https://www.kernel.org/doc/html/latest/kbuild/modules.html. Not a GCC issue anyway.