Fixed some compilations problems in Linux. And a bug in file_system to get the root / file-item

key.

src/core/file_system.c

@@ -73,6 +73,10 @@
 #define FA_TO_SHOW   FA_RDONLY | FA_DIREC | FA_ARCH | FA_SYSTEM
 #endif
 
+#ifndef MAX_PATH
+#  define MAX_PATH 4096
+#endif
+
 /* a position in the file-system */
 struct FileItem
 {
@@ -912,6 +916,10 @@ static char *remove_backslash(char *filename)
        removed */
     if (len == 3 && filename[1] == DEVICE_SEPARATOR)
       return filename;
+#else
+    /* this is just the root '/' slash */
+    if (len == 1)
+      return filename;
 #endif
     filename[len-1] = 0;
   }

src/dialogs/filesel.c

@@ -39,6 +39,10 @@
 #  define HAVE_DRIVES
 #endif
 
+#ifndef MAX_PATH
+#  define MAX_PATH 4096
+#endif
+
 /* Variables used only to maintain the history of navigation. */
 static JLink navigation_position = NULL; /* current position in the navigation history */
 static JList navigation_history = NULL;	/* set of FileItems navigated */

src/jinete/jthread.c

@@ -52,14 +52,14 @@
 
 #if defined UNIX_LIKE
 struct pthread_proxy_data {
-  void (*proc)(JThread thread, void *data);
+  void (*proc)(void *data);
   void *data;
 };
 
 static void *pthread_proxy(void *arg)
 {
-  pthread_proxy_data *ptr = arg;
+  struct pthread_proxy_data *ptr = arg;
-  void (*proc)(JThread thread, void *data) = ptr->proc;
+  void (*proc)(void *data) = ptr->proc;
   void *data = ptr->data;
   jfree(ptr);