Ports of lib9, libbio and libmach to Windows.
R=rsc
https://golang.org/cl/157159
diff --git a/include/libc.h b/include/libc.h
index 2eceaea..7b86399 100644
--- a/include/libc.h
+++ b/include/libc.h
@@ -137,12 +137,9 @@
#define ORDWR 2 /* read and write */
#define OEXEC 3 /* execute, == read but check execute permission */
#define OTRUNC 16 /* or'ed in (except for exec), truncate file first */
-#define OCEXEC 32 /* or'ed in, close on exec */
#define ORCLOSE 64 /* or'ed in, remove on close */
#define ODIRECT 128 /* or'ed in, direct access */
-#define ONONBLOCK 256 /* or'ed in, non-blocking call */
#define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */
-#define OLOCK 0x2000 /* or'ed in, lock after opening */
#define OAPPEND 0x4000 /* or'ed in, append only */
#define AEXIST 0 /* accessible: exists */
@@ -279,7 +276,6 @@
extern int notifyoff(char*);
extern int p9open(char*, int);
extern int fd2path(int, char*, int);
-extern int p9pipe(int*);
extern long readn(int, void*, long);
extern int remove(const char*);
extern vlong p9seek(int, vlong, int);
@@ -290,6 +286,18 @@
extern int p9waitpid(void);
extern ulong rendezvous(ulong, ulong);
+#ifdef __MINGW32__
+extern int fork();
+extern int pread(int fd, void *buf, int n, int off);
+extern int pwrite(int fd, void *buf, int n, int off);
+#define execvp(prog, argv) execvp(prog, (const char**)(argv))
+#define lseek(fd, n, base) _lseeki64(fd, n, base)
+#define mkdir(path, perm) mkdir(path)
+#define pipe(fd) _pipe(fd, 512, O_BINARY)
+#else
+#define O_BINARY 0
+#endif
+
#ifndef NOPLAN9DEFINES
#define alarm p9alarm
#define dup p9dup
@@ -303,7 +311,6 @@
#define create p9create
#undef open
#define open p9open
-#define pipe p9pipe
#define waitfor p9waitfor
#endif
