<linux/netlink.h> pulls in <linux/sysinfo.h> which conflicts with the musl one. --- qemu-2.12.0/linux-user/syscall.c.old 2018-07-03 02:34:54.660000000 -0500 +++ qemu-2.12.0/linux-user/syscall.c 2018-07-03 03:43:28.580000000 -0500 @@ -45,7 +45,7 @@ #include <sys/sem.h> #include <sys/statfs.h> #include <utime.h> -#include <sys/sysinfo.h> +#include <linux/sysinfo.h> #include <sys/signalfd.h> //#include <sys/user.h> #include <netinet/ip.h>