diff --git a/ChangeLog b/ChangeLog
index 15921365d..f51dd4bc9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,87 @@
+2009-07-03  suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
+
+	gxvalid: Pass the union by the pointer instead of the value.
+
+	* src/gxvalid/gxvcommn.h:
+	  - Declare new type `GXV_LookupValueCPtr'.
+	  - Update the type of the 2nd argument to pass GXV_LookupValueDesc
+	    data to the function prototyped as GXV_Lookup_Value_Validate_Func,
+	    from GXV_LookupValueDesc to GXV_LookupValueCPtr.
+	  - Likewise for the function prototyped as
+	    GXV_Lookup_Fmt4_Transit_Func.
+
+	  - Declare new type `GXV_StateTable_GlyphOffsetCPtr'.
+	  - Update the type of the 3rd argument to pass
+	    GXV_StateTable_GlyphOffsetDesc data to the function prototyped
+	    as GXV_StateTable_Entry_Validate_Func, from
+	    GXV_StateTable_GlyphOffsetDesc to GXV_StateTable_GlyphOffsetCPtr.
+
+	  - Declare new type `GXV_XStateTable_GlyphOffsetCPtr'.
+	  - Update the type of the 3rd argument to pass
+	    GXV_XStateTable_GlyphOffsetDesc data to the function prototyped
+	    as GXV_XStateTable_Entry_Validate_Func,
+	    from GXV_XStateTable_GlyphOffsetDesc
+	    to GXV_XStateTable_GlyphOffsetCPtr.
+
+	* src/gxvalid/gxvcommn.c (gxv_LookupTable_fmt0_validate,
+	gxv_XClassTable_lookupval_validate,
+	gxv_XClassTable_lookupfmt4_transit):
+	Update from GXV_LookupValueDesc to GXV_LookupValueCPtr.
+	
+	* src/gxvalid/gxvbsln.c (gxv_bsln_LookupValue_validate,
+	gxv_bsln_LookupFmt4_transit): Ditto.
+	
+	* src/gxvalid/gxvjust.c
+	(gxv_just_pcTable_LookupValue_entry_validate,
+	gxv_just_classTable_entry_validate,
+	gxv_just_wdcTable_LookupValue_validate): Ditto.
+	
+	* src/gxvalid/gxvkern.c
+	(gxv_kern_subtable_fmt1_entry_validate): Ditto.
+	
+	* src/gxvalid/gxvlcar.c (gxv_lcar_LookupValue_validate,
+	gxv_lcar_LookupFmt4_transit): Ditto.
+	
+	* src/gxvalid/gxvopbd.c (gxv_opbd_LookupValue_validate,
+	gxv_opbd_LookupFmt4_transit): Ditto.
+	
+	* src/gxvalid/gxvprop.c (gxv_prop_LookupValue_validate,
+	gxv_prop_LookupFmt4_transit): Ditto.
+	
+	* src/gxvalid/gxvmort4.c
+	(gxv_mort_subtable_type4_lookupval_validate): Ditto.
+	
+	* src/gxvalid/gxvmort0.c
+	(gxv_mort_subtable_type0_entry_validate): Update
+	from GXV_StateTable_GlyphOffsetDesc
+	to GXV_StateTable_GlyphOffsetCPtr.
+	
+	* src/gxvalid/gxvmort1.c
+	(gxv_mort_subtable_type1_entry_validate): Ditto.
+	
+	* src/gxvalid/gxvmort2.c
+	(gxv_mort_subtable_type2_entry_validate): Ditto.
+	
+	* src/gxvalid/gxvmort5.c
+	(gxv_mort_subtable_type5_entry_validate): Ditto.
+	
+	* src/gxvalid/gxvmorx2.c
+	(gxv_morx_subtable_type2_entry_validate): Ditto.
+	
+	* src/gxvalid/gxvmorx5.c
+	(gxv_morx_subtable_type5_entry_validate): Ditto.
+	
+	* src/gxvalid/gxvmorx1.c
+	(gxv_morx_subtable_type1_entry_validate): Ditto.
+	(gxv_morx_subtable_type1_LookupValue_validate,
+	gxv_morx_subtable_type1_LookupFmt4_transit):
+	Update from GXV_LookupValueDesc to GXV_LookupValueCPtr.
+	
+	* src/gxvalid/gxvmorx0.c
+	(gxv_morx_subtable_type0_entry_validate): Update
+	from GXV_XStateTable_GlyphOffsetDesc
+	to GXV_XStateTable_GlyphOffsetCPtr.
+
 2009-06-28  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 
 	ftpatent: Fix a bug by wrong usage of service->table_info().
diff --git a/src/gxvalid/gxvbsln.c b/src/gxvalid/gxvbsln.c
index 6cca65831..3d1003156 100644
--- a/src/gxvalid/gxvbsln.c
+++ b/src/gxvalid/gxvbsln.c
@@ -71,10 +71,10 @@
 
   static void
   gxv_bsln_LookupValue_validate( FT_UShort            glyph,
-                                 GXV_LookupValueDesc  value,
+                                 GXV_LookupValueCPtr  value_p,
                                  GXV_Validator        valid )
   {
-    FT_UShort   v = value.u;
+    FT_UShort   v = value_p->u;
     FT_UShort*  ctlPoints;
 
     FT_UNUSED( glyph );
@@ -122,7 +122,7 @@
 
   static GXV_LookupValueDesc
   gxv_bsln_LookupFmt4_transit( FT_UShort            relative_gindex,
-                               GXV_LookupValueDesc  base_value,
+                               GXV_LookupValueCPtr  base_value_p,
                                FT_Bytes             lookuptbl_limit,
                                GXV_Validator        valid )
   {
@@ -132,7 +132,7 @@
     GXV_LookupValueDesc  value;
 
     /* XXX: check range ? */
-    offset = (FT_UShort)( base_value.u +
+    offset = (FT_UShort)( base_value_p->u +
                           ( relative_gindex * sizeof ( FT_UShort ) ) );
 
     p     = valid->lookuptbl_head + offset;
diff --git a/src/gxvalid/gxvcommn.c b/src/gxvalid/gxvcommn.c
index 1ebf7d681..de7ce6fde 100644
--- a/src/gxvalid/gxvcommn.c
+++ b/src/gxvalid/gxvcommn.c
@@ -448,7 +448,7 @@
       }
 
       value = GXV_LOOKUP_VALUE_LOAD( p, valid->lookupval_sign );
-      valid->lookupval_func( i, value, valid );
+      valid->lookupval_func( i, &value, valid );
     }
 
     valid->subtable_length = p - table;
@@ -553,7 +553,7 @@
       }
 
       for ( gid = firstGlyph; gid <= lastGlyph; gid++ )
-        valid->lookupval_func( gid, value, valid );
+        valid->lookupval_func( gid, &value, valid );
     }
 
     gxv_LookupTable_fmt2_skip_endmarkers( p, unitSize, valid );
@@ -631,11 +631,11 @@
       for ( gid = firstGlyph; gid <= lastGlyph; gid++ )
       {
         value = valid->lookupfmt4_trans( (FT_UShort)( gid - firstGlyph ),
-                                         base_value,
+                                         &base_value,
                                          limit,
                                          valid );
 
-        valid->lookupval_func( gid, value, valid );
+        valid->lookupval_func( gid, &value, valid );
       }
     }
 
@@ -710,7 +710,7 @@
       }
       prev_glyph = glyph;
 
-      valid->lookupval_func( glyph, value, valid );
+      valid->lookupval_func( glyph, &value, valid );
     }
 
     gxv_LookupTable_fmt6_skip_endmarkers( p, unitSize, valid );
@@ -750,7 +750,7 @@
     {
       GXV_LIMIT_CHECK( 2 );
       value = GXV_LOOKUP_VALUE_LOAD( p, valid->lookupval_sign );
-      valid->lookupval_func( (FT_UShort)( firstGlyph + i ), value, valid );
+      valid->lookupval_func( (FT_UShort)( firstGlyph + i ), &value, valid );
     }
 
     valid->subtable_length = p - table;
@@ -1181,7 +1181,7 @@
       if ( NULL != valid->statetable.entry_validate_func )
         valid->statetable.entry_validate_func( state,
                                                flags,
-                                               glyphOffset,
+                                               &glyphOffset,
                                                statetable_table,
                                                statetable_limit,
                                                valid );
@@ -1352,15 +1352,15 @@
 
   static void
   gxv_XClassTable_lookupval_validate( FT_UShort            glyph,
-                                      GXV_LookupValueDesc  value,
+                                      GXV_LookupValueCPtr  value_p,
                                       GXV_Validator        valid )
   {
     FT_UNUSED( glyph );
 
-    if ( value.u >= valid->xstatetable.nClasses )
+    if ( value_p->u >= valid->xstatetable.nClasses )
       FT_INVALID_DATA;
-    if ( value.u > valid->xstatetable.maxClassID )
-      valid->xstatetable.maxClassID = value.u;
+    if ( value_p->u > valid->xstatetable.maxClassID )
+      valid->xstatetable.maxClassID = value_p->u;
   }
 
 
@@ -1392,7 +1392,7 @@
   */
   static GXV_LookupValueDesc
   gxv_XClassTable_lookupfmt4_transit( FT_UShort            relative_gindex,
-                                      GXV_LookupValueDesc  base_value,
+                                      GXV_LookupValueCPtr  base_value_p,
                                       FT_Bytes             lookuptbl_limit,
                                       GXV_Validator        valid )
   {
@@ -1402,7 +1402,7 @@
     GXV_LookupValueDesc  value;
 
     /* XXX: check range? */
-    offset = (FT_UShort)( base_value.u +
+    offset = (FT_UShort)( base_value_p->u +
                           relative_gindex * sizeof ( FT_UShort ) );
 
     p     = valid->lookuptbl_head + offset;
@@ -1556,7 +1556,7 @@
       if ( NULL != valid->xstatetable.entry_validate_func )
         valid->xstatetable.entry_validate_func( state,
                                                 flags,
-                                                glyphOffset,
+                                                &glyphOffset,
                                                 xstatetable_table,
                                                 xstatetable_limit,
                                                 valid );
diff --git a/src/gxvalid/gxvcommn.h b/src/gxvalid/gxvcommn.h
index 198d8e4fc..404c07ffa 100644
--- a/src/gxvalid/gxvcommn.h
+++ b/src/gxvalid/gxvcommn.h
@@ -79,6 +79,8 @@ FT_BEGIN_HEADER
 
   } GXV_LookupValueDesc;
 
+  typedef const GXV_LookupValueDesc* GXV_LookupValueCPtr;
+
   typedef enum  GXV_LookupValue_SignSpec_
   {
     GXV_LOOKUPVALUE_UNSIGNED = 0,
@@ -89,12 +91,12 @@ FT_BEGIN_HEADER
 
   typedef void
   (*GXV_Lookup_Value_Validate_Func)( FT_UShort            glyph,
-                                     GXV_LookupValueDesc  value,
+                                     GXV_LookupValueCPtr  value_p,
                                      GXV_Validator        valid );
 
   typedef GXV_LookupValueDesc
   (*GXV_Lookup_Fmt4_Transit_Func)( FT_UShort            relative_gindex,
-                                   GXV_LookupValueDesc  base_value,
+                                   GXV_LookupValueCPtr  base_value_p,
                                    FT_Bytes             lookuptbl_limit,
                                    GXV_Validator        valid );
 
@@ -134,6 +136,7 @@ FT_BEGIN_HEADER
 
   } GXV_StateTable_GlyphOffsetDesc;
 
+  typedef const GXV_StateTable_GlyphOffsetDesc* GXV_StateTable_GlyphOffsetCPtr;
 
   typedef void
   (*GXV_StateTable_Subtable_Setup_Func)( FT_UShort      table_size,
@@ -149,7 +152,7 @@ FT_BEGIN_HEADER
   (*GXV_StateTable_Entry_Validate_Func)(
      FT_Byte                         state,
      FT_UShort                       flags,
-     GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+     GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
      FT_Bytes                        statetable_table,
      FT_Bytes                        statetable_limit,
      GXV_Validator                   valid );
@@ -175,6 +178,8 @@ FT_BEGIN_HEADER
 
   typedef GXV_StateTable_GlyphOffsetDesc  GXV_XStateTable_GlyphOffsetDesc;
 
+  typedef const GXV_XStateTable_GlyphOffsetDesc* GXV_XStateTable_GlyphOffsetCPtr;
+
   typedef void
   (*GXV_XStateTable_Subtable_Setup_Func)( FT_ULong       table_size,
                                           FT_ULong       classTable,
@@ -189,7 +194,7 @@ FT_BEGIN_HEADER
   (*GXV_XStateTable_Entry_Validate_Func)(
      FT_UShort                       state,
      FT_UShort                       flags,
-     GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+     GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
      FT_Bytes                        xstatetable_table,
      FT_Bytes                        xstatetable_limit,
      GXV_Validator                   valid );
diff --git a/src/gxvalid/gxvjust.c b/src/gxvalid/gxvjust.c
index 29bf840b5..e951ce00e 100644
--- a/src/gxvalid/gxvjust.c
+++ b/src/gxvalid/gxvjust.c
@@ -323,15 +323,15 @@
 
   static void
   gxv_just_pcTable_LookupValue_entry_validate( FT_UShort            glyph,
-                                               GXV_LookupValueDesc  value,
+                                               GXV_LookupValueCPtr  value_p,
                                                GXV_Validator        valid )
   {
     FT_UNUSED( glyph );
 
-    if ( value.u > GXV_JUST_DATA( pc_offset_max ) )
-      GXV_JUST_DATA( pc_offset_max ) = value.u;
-    if ( value.u < GXV_JUST_DATA( pc_offset_max ) )
-      GXV_JUST_DATA( pc_offset_min ) = value.u;
+    if ( value_p->u > GXV_JUST_DATA( pc_offset_max ) )
+      GXV_JUST_DATA( pc_offset_max ) = value_p->u;
+    if ( value_p->u < GXV_JUST_DATA( pc_offset_max ) )
+      GXV_JUST_DATA( pc_offset_min ) = value_p->u;
   }
 
 
@@ -384,7 +384,7 @@
   gxv_just_classTable_entry_validate(
     FT_Byte                         state,
     FT_UShort                       flags,
-    GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
     FT_Bytes                        table,
     FT_Bytes                        limit,
     GXV_Validator                   valid )
@@ -395,7 +395,7 @@
     FT_UShort  currentClass;
 
     FT_UNUSED( state );
-    FT_UNUSED( glyphOffset );
+    FT_UNUSED( glyphOffset_p );
     FT_UNUSED( table );
     FT_UNUSED( limit );
     FT_UNUSED( valid );
@@ -449,15 +449,15 @@
 
   static void
   gxv_just_wdcTable_LookupValue_validate( FT_UShort            glyph,
-                                          GXV_LookupValueDesc  value,
+                                          GXV_LookupValueCPtr  value_p,
                                           GXV_Validator        valid )
   {
     FT_UNUSED( glyph );
 
-    if ( value.u > GXV_JUST_DATA( wdc_offset_max ) )
-      GXV_JUST_DATA( wdc_offset_max ) = value.u;
-    if ( value.u < GXV_JUST_DATA( wdc_offset_min ) )
-      GXV_JUST_DATA( wdc_offset_min ) = value.u;
+    if ( value_p->u > GXV_JUST_DATA( wdc_offset_max ) )
+      GXV_JUST_DATA( wdc_offset_max ) = value_p->u;
+    if ( value_p->u < GXV_JUST_DATA( wdc_offset_min ) )
+      GXV_JUST_DATA( wdc_offset_min ) = value_p->u;
   }
 
 
diff --git a/src/gxvalid/gxvkern.c b/src/gxvalid/gxvkern.c
index bfb405f65..2137db842 100644
--- a/src/gxvalid/gxvkern.c
+++ b/src/gxvalid/gxvkern.c
@@ -256,7 +256,7 @@
   gxv_kern_subtable_fmt1_entry_validate(
     FT_Byte                         state,
     FT_UShort                       flags,
-    GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
     FT_Bytes                        table,
     FT_Bytes                        limit,
     GXV_Validator                   valid )
@@ -268,7 +268,7 @@
     FT_UShort  kernValue;
 
     FT_UNUSED( state );
-    FT_UNUSED( glyphOffset );
+    FT_UNUSED( glyphOffset_p );
 
 
     push        = (FT_UShort)( ( flags >> 15 ) & 1      );
diff --git a/src/gxvalid/gxvlcar.c b/src/gxvalid/gxvlcar.c
index 48821ea87..f14fa5b13 100644
--- a/src/gxvalid/gxvlcar.c
+++ b/src/gxvalid/gxvlcar.c
@@ -83,10 +83,10 @@
 
   static void
   gxv_lcar_LookupValue_validate( FT_UShort            glyph,
-                                 GXV_LookupValueDesc  value,
+                                 GXV_LookupValueCPtr  value_p,
                                  GXV_Validator        valid )
   {
-    FT_Bytes   p     = valid->root->base + value.u;
+    FT_Bytes   p     = valid->root->base + value_p->u;
     FT_Bytes   limit = valid->root->limit;
     FT_UShort  count;
     FT_Short   partial;
@@ -146,7 +146,7 @@
 
   static GXV_LookupValueDesc
   gxv_lcar_LookupFmt4_transit( FT_UShort            relative_gindex,
-                               GXV_LookupValueDesc  base_value,
+                               GXV_LookupValueCPtr  base_value_p,
                                FT_Bytes             lookuptbl_limit,
                                GXV_Validator        valid )
   {
@@ -158,7 +158,7 @@
     FT_UNUSED( lookuptbl_limit );
 
     /* XXX: check range? */
-    offset = (FT_UShort)( base_value.u +
+    offset = (FT_UShort)( base_value_p->u +
                           relative_gindex * sizeof ( FT_UShort ) );
     p      = valid->root->base + offset;
     limit  = valid->root->limit;
diff --git a/src/gxvalid/gxvmort0.c b/src/gxvalid/gxvmort0.c
index 0902056c6..0453062f6 100644
--- a/src/gxvalid/gxvmort0.c
+++ b/src/gxvalid/gxvmort0.c
@@ -64,7 +64,7 @@
   gxv_mort_subtable_type0_entry_validate(
     FT_Byte                         state,
     FT_UShort                       flags,
-    GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
     FT_Bytes                        table,
     FT_Bytes                        limit,
     GXV_Validator                   valid )
@@ -80,7 +80,7 @@
     FT_UNUSED( limit );
 
     FT_UNUSED( GXV_Mort_IndicScript_Msg[verb] ); /* for the non-debugging */
-    FT_UNUSED( glyphOffset );                    /* case                  */
+    FT_UNUSED( glyphOffset_p );                  /* case                  */
 
 
     markFirst   = (FT_UShort)( ( flags >> 15 ) & 1 );
@@ -91,7 +91,7 @@
     verb     = (FT_UShort)( flags & 0x000F );
 
     GXV_TRACE(( "  IndicScript MorphRule for glyphOffset 0x%04x",
-                glyphOffset.u ));
+                glyphOffset_p->u ));
     GXV_TRACE(( " markFirst=%01d", markFirst ));
     GXV_TRACE(( " dontAdvance=%01d", dontAdvance ));
     GXV_TRACE(( " markLast=%01d", markLast ));
diff --git a/src/gxvalid/gxvmort1.c b/src/gxvalid/gxvmort1.c
index 711bbd0ba..696d85032 100644
--- a/src/gxvalid/gxvmort1.c
+++ b/src/gxvalid/gxvmort1.c
@@ -135,7 +135,7 @@
   gxv_mort_subtable_type1_entry_validate(
     FT_Byte                         state,
     FT_UShort                       flags,
-    GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
     FT_Bytes                        table,
     FT_Bytes                        limit,
     GXV_Validator                   valid )
@@ -154,8 +154,8 @@
     dontAdvance   = (FT_UShort)( ( flags >> 14 ) & 1      );
     reserved      = (FT_Short)(    flags         & 0x3FFF );
 
-    markOffset    = (FT_Short)( glyphOffset.ul >> 16 );
-    currentOffset = (FT_Short)( glyphOffset.ul       );
+    markOffset    = (FT_Short)( glyphOffset_p->ul >> 16 );
+    currentOffset = (FT_Short)( glyphOffset_p->ul       );
 
     if ( 0 < reserved )
     {
diff --git a/src/gxvalid/gxvmort2.c b/src/gxvalid/gxvmort2.c
index f19d15dab..6f77cf39c 100644
--- a/src/gxvalid/gxvmort2.c
+++ b/src/gxvalid/gxvmort2.c
@@ -189,7 +189,7 @@
   gxv_mort_subtable_type2_entry_validate(
     FT_Byte                         state,
     FT_UShort                       flags,
-    GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
     FT_Bytes                        table,
     FT_Bytes                        limit,
     GXV_Validator                   valid )
@@ -199,7 +199,7 @@
     FT_UShort offset;
 
     FT_UNUSED( state );
-    FT_UNUSED( glyphOffset );
+    FT_UNUSED( glyphOffset_p );
     FT_UNUSED( limit );
 
 
diff --git a/src/gxvalid/gxvmort4.c b/src/gxvalid/gxvmort4.c
index a04bc1efa..83470988c 100644
--- a/src/gxvalid/gxvmort4.c
+++ b/src/gxvalid/gxvmort4.c
@@ -40,12 +40,12 @@
 
   static void
   gxv_mort_subtable_type4_lookupval_validate( FT_UShort            glyph,
-                                              GXV_LookupValueDesc  value,
+                                              GXV_LookupValueCPtr  value_p,
                                               GXV_Validator        valid )
   {
     FT_UNUSED( glyph );
 
-    gxv_glyphid_validate( value.u, valid );
+    gxv_glyphid_validate( value_p->u, valid );
   }
 
   /*
@@ -78,7 +78,7 @@
   static GXV_LookupValueDesc
   gxv_mort_subtable_type4_lookupfmt4_transit(
     FT_UShort            relative_gindex,
-    GXV_LookupValueDesc  base_value,
+    GXV_LookupValueCPtr  base_value_p,
     FT_Bytes             lookuptbl_limit,
     GXV_Validator        valid )
   {
@@ -88,7 +88,7 @@
     GXV_LookupValueDesc  value;
 
     /* XXX: check range? */
-    offset = (FT_UShort)( base_value.u +
+    offset = (FT_UShort)( base_value_p->u +
                           relative_gindex * sizeof ( FT_UShort ) );
 
     p     = valid->lookuptbl_head + offset;
diff --git a/src/gxvalid/gxvmort5.c b/src/gxvalid/gxvmort5.c
index a7cabc359..ec0bcb634 100644
--- a/src/gxvalid/gxvmort5.c
+++ b/src/gxvalid/gxvmort5.c
@@ -139,7 +139,7 @@
   gxv_mort_subtable_type5_entry_validate(
     FT_Byte                         state,
     FT_UShort                       flags,
-    GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+    GXV_StateTable_GlyphOffsetCPtr  glyphOffset,
     FT_Bytes                        table,
     FT_Bytes                        limit,
     GXV_Validator                   valid )
@@ -168,8 +168,8 @@
     currentInsertCount   = (FT_Byte)( ( flags >> 5 ) & 0x1F   );
     markedInsertCount    = (FT_Byte)(   flags        & 0x001F );
 
-    currentInsertList    = (FT_UShort)( glyphOffset.ul >> 16 );
-    markedInsertList     = (FT_UShort)( glyphOffset.ul       );
+    currentInsertList    = (FT_UShort)( glyphOffset->ul >> 16 );
+    markedInsertList     = (FT_UShort)( glyphOffset->ul       );
 
     if ( 0 != currentInsertList && 0 != currentInsertCount )
     {
diff --git a/src/gxvalid/gxvmorx0.c b/src/gxvalid/gxvmorx0.c
index ca92b6c39..0159c5aef 100644
--- a/src/gxvalid/gxvmorx0.c
+++ b/src/gxvalid/gxvmorx0.c
@@ -42,7 +42,7 @@
   gxv_morx_subtable_type0_entry_validate(
     FT_UShort                        state,
     FT_UShort                        flags,
-    GXV_XStateTable_GlyphOffsetDesc  glyphOffset,
+    GXV_XStateTable_GlyphOffsetCPtr  glyphOffset_p,
     FT_Bytes                         table,
     FT_Bytes                         limit,
     GXV_Validator                    valid )
@@ -54,7 +54,7 @@
     FT_UShort  verb;
 
     FT_UNUSED( state );
-    FT_UNUSED( glyphOffset );
+    FT_UNUSED( glyphOffset_p );
     FT_UNUSED( table );
     FT_UNUSED( limit );
 
diff --git a/src/gxvalid/gxvmorx1.c b/src/gxvalid/gxvmorx1.c
index 331d4ccda..e1c162fa0 100644
--- a/src/gxvalid/gxvmorx1.c
+++ b/src/gxvalid/gxvmorx1.c
@@ -103,7 +103,7 @@
   gxv_morx_subtable_type1_entry_validate(
     FT_UShort                       state,
     FT_UShort                       flags,
-    GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
     FT_Bytes                        table,
     FT_Bytes                        limit,
     GXV_Validator                   valid )
@@ -127,8 +127,8 @@
 
     reserved = (FT_UShort)( flags & 0x3FFF );
 
-    markIndex    = (FT_Short)( glyphOffset.ul >> 16 );
-    currentIndex = (FT_Short)( glyphOffset.ul       );
+    markIndex    = (FT_Short)( glyphOffset_p->ul >> 16 );
+    currentIndex = (FT_Short)( glyphOffset_p->ul       );
 
     GXV_TRACE(( " setMark=%01d dontAdvance=%01d\n",
                 setMark, dontAdvance ));
@@ -155,14 +155,14 @@
 
   static void
   gxv_morx_subtable_type1_LookupValue_validate( FT_UShort            glyph,
-                                                GXV_LookupValueDesc  value,
+                                                GXV_LookupValueCPtr  value_p,
                                                 GXV_Validator        valid )
   {
     FT_UNUSED( glyph ); /* for the non-debugging case */
 
-    GXV_TRACE(( "morx subtable type1 subst.: %d -> %d\n", glyph, value.u ));
+    GXV_TRACE(( "morx subtable type1 subst.: %d -> %d\n", glyph, value_p->u ));
 
-    if ( value.u > valid->face->num_glyphs )
+    if ( value_p->u > valid->face->num_glyphs )
       FT_INVALID_GLYPH_ID;
   }
 
@@ -170,7 +170,7 @@
   static GXV_LookupValueDesc
   gxv_morx_subtable_type1_LookupFmt4_transit(
     FT_UShort            relative_gindex,
-    GXV_LookupValueDesc  base_value,
+    GXV_LookupValueCPtr  base_value_p,
     FT_Bytes             lookuptbl_limit,
     GXV_Validator        valid )
   {
@@ -180,7 +180,7 @@
     GXV_LookupValueDesc  value;
 
     /* XXX: check range? */
-    offset = (FT_UShort)( base_value.u +
+    offset = (FT_UShort)( base_value_p->u +
                           relative_gindex * sizeof ( FT_UShort ) );
 
     p     = valid->lookuptbl_head + offset;
diff --git a/src/gxvalid/gxvmorx2.c b/src/gxvalid/gxvmorx2.c
index 5cad5169c..b4bb3353f 100644
--- a/src/gxvalid/gxvmorx2.c
+++ b/src/gxvalid/gxvmorx2.c
@@ -186,7 +186,7 @@
   gxv_morx_subtable_type2_entry_validate(
     FT_UShort                       state,
     FT_UShort                       flags,
-    GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
     FT_Bytes                        table,
     FT_Bytes                        limit,
     GXV_Validator                   valid )
@@ -206,7 +206,7 @@
     performAction  = (FT_UShort)( ( flags >> 13 ) & 1 );
 
     reserved       = (FT_UShort)( flags & 0x1FFF );
-    ligActionIndex = glyphOffset.u;
+    ligActionIndex = glyphOffset_p->u;
 
     if ( reserved > 0 )
       GXV_TRACE(( "  reserved 14bit is non-zero\n" ));
diff --git a/src/gxvalid/gxvmorx5.c b/src/gxvalid/gxvmorx5.c
index d9115618c..5e3a16437 100644
--- a/src/gxvalid/gxvmorx5.c
+++ b/src/gxvalid/gxvmorx5.c
@@ -136,7 +136,7 @@
   gxv_morx_subtable_type5_entry_validate(
     FT_UShort                       state,
     FT_UShort                       flags,
-    GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
     FT_Bytes                        table,
     FT_Bytes                        limit,
     GXV_Validator                   valid )
@@ -165,8 +165,8 @@
     currentInsertCount = (FT_Byte)( ( flags >> 5 ) & 0x1F   );
     markedInsertCount  = (FT_Byte)(   flags        & 0x001F );
 
-    currentInsertList = (FT_Byte)  ( glyphOffset.ul >> 16 );
-    markedInsertList  = (FT_UShort)( glyphOffset.ul       );
+    currentInsertList = (FT_Byte)  ( glyphOffset_p->ul >> 16 );
+    markedInsertList  = (FT_UShort)( glyphOffset_p->ul       );
 
     if ( currentInsertList && 0 != currentInsertCount )
       gxv_morx_subtable_type5_InsertList_validate( currentInsertList,
diff --git a/src/gxvalid/gxvopbd.c b/src/gxvalid/gxvopbd.c
index 8d6fe669f..e12506094 100644
--- a/src/gxvalid/gxvopbd.c
+++ b/src/gxvalid/gxvopbd.c
@@ -67,18 +67,18 @@
 
   static void
   gxv_opbd_LookupValue_validate( FT_UShort            glyph,
-                                 GXV_LookupValueDesc  value,
+                                 GXV_LookupValueCPtr  value_p,
                                  GXV_Validator        valid )
   {
     /* offset in LookupTable is measured from the head of opbd table */
-    FT_Bytes   p     = valid->root->base + value.u;
+    FT_Bytes   p     = valid->root->base + value_p->u;
     FT_Bytes   limit = valid->root->limit;
     FT_Short   delta_value;
     int        i;
 
 
-    if ( value.u < GXV_OPBD_DATA( valueOffset_min ) )
-      GXV_OPBD_DATA( valueOffset_min ) = value.u;
+    if ( value_p->u < GXV_OPBD_DATA( valueOffset_min ) )
+      GXV_OPBD_DATA( valueOffset_min ) = value_p->u;
 
     for ( i = 0; i < 4; i++ )
     {
@@ -132,7 +132,7 @@
 
   static GXV_LookupValueDesc
   gxv_opbd_LookupFmt4_transit( FT_UShort            relative_gindex,
-                               GXV_LookupValueDesc  base_value,
+                               GXV_LookupValueCPtr  base_value_p,
                                FT_Bytes             lookuptbl_limit,
                                GXV_Validator        valid )
   {
@@ -142,7 +142,7 @@
     FT_UNUSED( valid );
 
     /* XXX: check range? */
-    value.u = (FT_UShort)( base_value.u +
+    value.u = (FT_UShort)( base_value_p->u +
                            relative_gindex * 4 * sizeof ( FT_Short ) );
 
     return value;
diff --git a/src/gxvalid/gxvprop.c b/src/gxvalid/gxvprop.c
index 010eeda42..66c3ab740 100644
--- a/src/gxvalid/gxvprop.c
+++ b/src/gxvalid/gxvprop.c
@@ -168,10 +168,10 @@
 
   static void
   gxv_prop_LookupValue_validate( FT_UShort            glyph,
-                                 GXV_LookupValueDesc  value,
+                                 GXV_LookupValueCPtr  value_p,
                                  GXV_Validator        valid )
   {
-    gxv_prop_property_validate( value.u, glyph, valid );
+    gxv_prop_property_validate( value_p->u, glyph, valid );
   }
 
 
@@ -204,7 +204,7 @@
 
   static GXV_LookupValueDesc
   gxv_prop_LookupFmt4_transit( FT_UShort            relative_gindex,
-                               GXV_LookupValueDesc  base_value,
+                               GXV_LookupValueCPtr  base_value_p,
                                FT_Bytes             lookuptbl_limit,
                                GXV_Validator        valid )
   {
@@ -214,7 +214,7 @@
     GXV_LookupValueDesc  value;
 
     /* XXX: check range? */
-    offset = (FT_UShort)( base_value.u +
+    offset = (FT_UShort)( base_value_p->u +
                           relative_gindex * sizeof( FT_UShort ) );
     p      = valid->lookuptbl_head + offset;
     limit  = lookuptbl_limit;