Add unlink

Author: bucanero

ppu/crt/crt1.c

@@ -32,6 +32,7 @@ extern long int __librt_telldir_r(struct _reent *r,DIR *dirp);
 extern void __librt_rewinddir_r(struct _reent *r,DIR *dirp);
 extern void __librt_seekdir_r(struct _reent *r,DIR *dirp,long int loc);
 extern int __librt_rmdir_r(struct _reent *r,const char *dirname);
+extern int __librt_unlink_r(struct _reent *r,const char *path);
 
 extern int __librt_usleep_r(struct _reent *r,useconds_t usec);
 extern unsigned int __librt_sleep_r(struct _reent *r,unsigned int seconds);
@@ -76,6 +77,7 @@ static void __syscalls_init(void)
 	__syscalls.rewinddir_r = __librt_rewinddir_r;
 	__syscalls.seekdir_r = __librt_seekdir_r;
 	__syscalls.rmdir_r = __librt_rmdir_r;
+	__syscalls.unlink_r = __librt_unlink_r;
 
 	__syscalls.sleep_r = __librt_sleep_r;
 	__syscalls.usleep_r = __librt_usleep_r;