diff -ur pcmanfm-0.5.1.orig/src/mime-type/mime-cache.c pcmanfm-0.5.1/src/mime-type/mime-cache.c
--- pcmanfm-0.5.1.orig/src/mime-type/mime-cache.c	2009-04-20 20:41:30.000000000 +0300
+++ pcmanfm-0.5.1/src/mime-type/mime-cache.c	2009-10-24 20:39:51.000000000 +0300
@@ -40,7 +40,13 @@
 #include <fnmatch.h>
 
 #define LIB_MAJOR_VERSION 1
-#define LIB_MAX_MINOR_VERSION 1
+/* FIXME: since mime-cache 1.2, weight is splitted into three parts
+ * only lower 8 bit contains weight, and higher bits are flags and case-sensitivity.
+ * anyway, since we don't support weight at all, it'll be fixed later.
+ * We claimed that we support 1.2 to cheat pcmanfm as a temporary quick dirty fix
+ * for the broken file manager, but this should be correctly done in the future.
+ * Weight and case-sensitivity are not handled now. */
+#define LIB_MAX_MINOR_VERSION 2
 #define LIB_MIN_MINOR_VERSION 0
 
 /* handle byte order here */
@@ -57,7 +63,6 @@
 #define    GLOB_LIST    20
 #define    MAGIC_LIST    24
 #define    NAMESPACE_LIST    28
-#define    HEADER_SIZE    32
 
 MimeCache* mime_cache_new( const char* file_path )
 {
@@ -111,7 +116,7 @@
     if ( fd < 0 )
         return FALSE;
 
-    if( fstat ( fd, &statbuf ) < 0 || statbuf.st_size < HEADER_SIZE )
+    if( fstat ( fd, &statbuf ) < 0 )
     {
         close( fd );
         return FALSE;
@@ -346,7 +351,6 @@
         const char* node =nodes + i * 12;
         guint32 ch = VAL32(node, 0);
         _suffix_pos = suffix;
-
         if( G_LIKELY( ch ) )
         {
             if( ch == uchar )
@@ -391,14 +395,12 @@
 
     if( G_UNLIKELY( ! filename || ! *filename || 0 == n ) )
         return NULL;
-
     if( cache->has_reverse_suffix )  /* since mime.cache ver: 1.1 */
     {
         const char *suffix, *leaf_node, *_suffix_pos = (const char*)-1;
         fn_len = strlen( filename );
         suffix = g_utf8_find_prev_char( filename, filename + fn_len );
         leaf_node = lookup_reverse_suffix_nodes( cache->buffer, root, n, filename, suffix, &_suffix_pos );
-
         if( leaf_node )
         {
             mime_type = cache->buffer + VAL32( leaf_node, 4 );