diff --git a/gcc/sys-types.h b/gcc/sys-types.h
new file mode 100644
index 00000000000..dd583d943d9
--- /dev/null
+++ b/gcc/sys-types.h
@@ -0,0 +1,235 @@
+enum clnt_stat { ___fake1 };
+enum auth_stat { ___fake2 };
+
+struct netconfig;
+struct netbuf;
+struct address;
+struct tm;
+struct ldfile;
+struct syment;
+struct stat;
+struct timeval;
+struct termios;
+struct tms;
+struct dma_cb;
+struct cred;
+struct vnode;
+struct vattr;
+struct uarg;
+struct statfs;
+struct statvfs;
+struct dirent;
+struct itimerval;
+struct mnttab;
+struct strbuf;
+struct vfstab;
+struct ldfile;
+struct syment;
+struct scnhdr;
+struct exception;
+struct nd_hostservlist;
+struct nd_hostserv;
+struct utsname;
+struct uio;
+struct pid;
+struct pollfd;
+struct nlist;
+struct passwd;
+struct spwd;
+struct flock;
+struct seg;
+struct sembuf;
+struct sigaction;
+struct utimbuf;
+struct map;
+struct filehdr;
+struct lineno;
+struct nd_addrlist;
+struct FTW;
+struct buf;
+struct ustat;
+struct qelem;
+struct prpsinfo;
+struct user;
+struct qelem;
+struct execenv;
+struct utmpx;
+
+struct direct;
+struct tm;
+struct stat;
+struct rlimit;
+struct rusage;
+struct sockaddr;
+struct sockaddr_in;
+struct timeval { int i; };
+struct exportent;
+struct fstab;
+struct hostent;
+struct in_addr { int i; };
+struct ldfile;
+struct mallinfo { int i; };
+struct mint;
+struct nmtent;
+struct netent;
+struct pmaplist;
+struct protoent;
+struct rpcent;
+struct servent;
+struct authdes_cred;
+struct rpc_err;
+struct ypall_callback;
+
+union wait;
+
+/* Get size_t and wchar_t.  */
+#include "gstddef.h"
+
+/* #include "sys/types.h" */
+typedef int dev_t;
+typedef int pid_t;
+typedef int gid_t;
+typedef int off_t;
+typedef int mode_t;
+typedef int uid_t;
+
+typedef int proc_t;
+typedef int time_t;
+typedef int addr_t;
+typedef int caddr_t;
+typedef int clock_t;
+typedef int div_t;
+typedef int ldiv_t;
+typedef int dl_t;
+typedef int major_t;
+typedef int minor_t;
+typedef int emcp_t;
+typedef int fpclass_t;
+typedef int index_t;
+typedef int ecb_t;
+typedef int aioop_t;
+typedef int evver_t;
+typedef int evcntlcmds_t;
+typedef int idtype_t;
+typedef int id_t;
+typedef int procset_t;
+typedef int hostid_t;
+typedef int evpollcmds_t;
+typedef int event_t;
+typedef int hrtime_t;
+typedef int evqcntlcmds_t;
+typedef int sigset_t;
+typedef int evsiginfo_t;
+typedef int evcontext_t;
+typedef int evta_t;
+typedef int speed_t;
+typedef int rlim_t;
+typedef int cred_t;
+typedef int file_t;
+typedef int vnode_t;
+typedef int vfs_t;
+typedef int fpos_t;
+typedef int exhda_t;
+typedef int ucontext_t;
+typedef int sess_t;
+typedef int hrtcmd_t;
+typedef int interval_t;
+typedef int key_t;
+typedef int daddr_t;
+typedef int stack_t;
+typedef int sigaction_t;
+typedef int siginfo_t;
+typedef int mblk_t;
+typedef int paddr_t;
+typedef int qband_t;
+typedef int queue_t;
+typedef int rf_resource_t;
+typedef int sr_mount_t;
+typedef int timer_t;
+typedef int fpregset_t;
+typedef int prstatus_t;
+typedef int vfssw_t;
+typedef int eucwidth_t;
+typedef int page_t;
+
+typedef int u_int;
+typedef int u_short;
+typedef int u_long;
+typedef int u_char;
+
+typedef int ushort;
+typedef int ulong;
+typedef int uint;
+
+typedef va_list;
+
+typedef int archdr;
+typedef int AUTH;
+typedef int CLIENT;
+typedef int DIR;
+typedef int ENTRY;
+typedef int Elf;
+typedef int Elf32_Ehdr;
+typedef int Elf32_Phdr;
+typedef int Elf32_Shdr;
+typedef int Elf_Arhdr;
+typedef int Elf_Arsym;
+typedef int Elf_Cmd;
+typedef int Elf_Data;
+typedef int Elf_Scn;
+typedef int Elf_Type;
+typedef int Elf_Kind;
+typedef int FIELD;
+typedef int FIELDTYPE;
+typedef int PTF_int;
+typedef int PTF_void;
+typedef int PTF_charP;
+typedef int FILE;
+typedef int FORM;
+typedef int ITEM;
+typedef int MENU;
+typedef int OPTIONS;
+typedef int PANEL;
+typedef int FTP_void;
+typedef int RPCBLIST;
+typedef int SCREEN;
+typedef int SVCXPRT;
+typedef int TERMINAL;
+typedef int WINDOW;
+typedef int bool;
+typedef int nl_catd;
+typedef int nl_item;
+typedef int chtype;
+typedef int datum;
+typedef int fp_rnd;
+typedef int spraycumul;
+typedef int WORD;
+typedef int VISIT;
+typedef int ACTION;
+
+typedef int *jmp_buf;
+typedef int *sigjmp_buf;
+typedef int xdrproc_t;
+typedef int CALL;
+typedef int bool_t;
+typedef int DBM;
+typedef int des_block;
+typedef int resultproc_t;
+
+
+#ifdef BSD
+
+#define mode_t int
+#define uid_t int
+#define gid_t int
+#define time_t long
+#define pid_t int
+#define signal_ret_t int
+#define wait_arg_t union wait
+
+#else
+
+#define signal_ret_t void
+#define wait_arg_t int
+
+#endif