misc fixes to compile on older platforms

src/option_parser.cpp

@@ -334,7 +334,7 @@ namespace mergerfs
           FUSE_OPT_KEY("--help",MERGERFS_OPT_HELP),
           FUSE_OPT_KEY("-v",MERGERFS_OPT_VERSION),
           FUSE_OPT_KEY("--version",MERGERFS_OPT_VERSION),
-          FUSE_OPT_END
+          {NULL,-1U,0}
         };
 
 

src/read_buf.cpp

@@ -32,6 +32,8 @@
 
 #include "fileinfo.hpp"
 
+typedef struct fuse_bufvec fuse_bufvec;
+
 static
 int
 _read_buf(const int      fd,

src/read_buf.hpp

@@ -22,15 +22,24 @@
    THE SOFTWARE.
 */
 
+#ifndef __READ_BUF_HPP__
+#define __READ_BUF_HPP__
+
+#include <fuse.h>
+
+#include <sys/types.h>
+
 namespace mergerfs
 {
   namespace fuse
   {
     int
     read_buf(const char          *fusepath,
-             fuse_bufvec    **buf,
+             struct fuse_bufvec **buf,
              size_t               size,
              off_t                offset,
              fuse_file_info      *fi);
   }
 }
+
+#endif

src/write_buf.hpp

@@ -22,14 +22,23 @@
    THE SOFTWARE.
 */
 
+#ifndef __WRITE_BUF_HPP__
+#define __WRITE_BUF_HPP__
+
+#include <fuse.h>
+
+#include <sys/types.h>
+
 namespace mergerfs
 {
   namespace fuse
   {
     int
     write_buf(const char         *fusepath,
-              fuse_bufvec    *buf,
+              struct fuse_bufvec *buf,
               off_t               offset,
               fuse_file_info     *fi);
   }
 }
+
+#endif