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ddb614993a
Without this, when building with recent gcc, we'll see errors when compiling for --target mmix the first being: CC libc/sys/mmixware/libc_a-chmod.o In file included from /x/newlib/libc/sys/mmixware/chmod.c:17: /x/newlib/libc/sys/mmixware/chmod.c: In function 'chmod': /x/newlib/libc/sys/mmixware/sys/syscall.h:139:6: error: implicit declaration \ of function 'sprintf' [-Wimplicit-function-declaration] 139 | sprintf (buf, "UNIMPLEMENTED %s in %s\n", __FUNCTION__, __FILE__); \ Other warnings also quelled. * libc/sys/mmixware/sys/syscall.h: Include stdio.h, string.h and unistd.h. * libc/sys/mmixware/_exit.c: Call __unreachable after simulator exit. * libc/sys/mmixware/chown.c (chown): Match declaration in unistd.h. * libc/sys/mmixware/getpid.c (_getpid): Ditto. * libc/sys/mmixware/kill.c (_kill): Ditto. * libc/sys/mmixware/link.c (_link): Ditto. * libc/sys/mmixware/read.c (_read): Ditto. * libc/sys/mmixware/sbrk.c (_sbrk): Ditto. * libc/sys/mmixware/unlink.c (_unlink): Ditto. * libc/sys/mmixware/write.c (_write): Ditto.