svn merge -r524:HEAD "^/branches/released" .

35 files changed, 101 insertions, 43 deletions

diff --git a/mesalib/src/glu/sgi/libnurbs/interface/bezierPatchMesh.h b/mesalib/src/glu/sgi/libnurbs/interface/bezierPatchMesh.h
index 449329665..ba6868a30 100644
--- a/mesalib/src/glu/sgi/libnurbs/interface/bezierPatchMesh.h
+++ b/mesalib/src/glu/sgi/libnurbs/interface/bezierPatchMesh.h
@@ -33,6 +33,7 @@
 #ifndef _BEZIERPATCHMESH_H
 #define _BEZIERPATCHMESH_H
 
+#include <GL/gl.h>
 #include "bezierPatch.h"
 
 typedef struct bezierPatchMesh{
diff --git a/mesalib/src/glu/sgi/libnurbs/interface/glsurfeval.h b/mesalib/src/glu/sgi/libnurbs/interface/glsurfeval.h
index 1567c6b09..621e59391 100644
--- a/mesalib/src/glu/sgi/libnurbs/interface/glsurfeval.h
+++ b/mesalib/src/glu/sgi/libnurbs/interface/glsurfeval.h
@@ -83,7 +83,7 @@ typedef struct surfEvalMachine{
 
 class StoredVertex {
 public:
-    		StoredVertex() { type = 0; }
+    		StoredVertex() { type = 0; coord[0] = 0; coord[1] = 0; point[0] = 0; point[1] = 0; }
 		~StoredVertex(void) {}
     void	saveEvalCoord(REAL x, REAL y) 
 		    {coord[0] = x; coord[1] = y; type = TYPECOORD; }
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/arc.cc b/mesalib/src/glu/sgi/libnurbs/internals/arc.cc
index b85139de9..cd4c4048a 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/arc.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/arc.cc
@@ -43,7 +43,6 @@
 #include "myassert.h"
 #include "arc.h"
 #include "bin.h"
-#include "bezierarc.h"
 #include "pwlarc.h"
 #include "simplemath.h"
 
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/arc.h b/mesalib/src/glu/sgi/libnurbs/internals/arc.h
index e986019c3..ca397f3b1 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/arc.h
+++ b/mesalib/src/glu/sgi/libnurbs/internals/arc.h
@@ -108,6 +108,9 @@ public:
 inline
 Arc::Arc( Arc *j, PwlArc *p )
 {
+    prev = NULL;
+    next = NULL;
+    link = NULL;
     bezierArc = NULL;
     pwlArc = p;
     type = j->type;
@@ -123,6 +126,9 @@ Arc::Arc( Arc *j, PwlArc *p )
 inline
 Arc::Arc( arc_side side, long _nuid )
 {
+    prev = NULL;
+    next = NULL;
+    link = NULL;
     bezierArc = NULL;
     pwlArc = NULL;
     type = 0;
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/arcsorter.h b/mesalib/src/glu/sgi/libnurbs/internals/arcsorter.h
index d72dd1e86..a55df9267 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/arcsorter.h
+++ b/mesalib/src/glu/sgi/libnurbs/internals/arcsorter.h
@@ -37,7 +37,6 @@
 #define __gluarcsorter_h_
 
 #include "sorter.h"
-#include "arcsorter.h"
 
 class Arc;
 class Subdivider;
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/backend.cc b/mesalib/src/glu/sgi/libnurbs/internals/backend.cc
index 88dc3f516..27b41ebb2 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/backend.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/backend.cc
@@ -46,7 +46,6 @@
 #include "backend.h"
 #include "basiccrveval.h"
 #include "basicsurfeval.h"
-#include "nurbsconsts.h"
 
 #define NOWIREFRAME
 
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/bin.cc b/mesalib/src/glu/sgi/libnurbs/internals/bin.cc
index 54b406147..ff75b86be 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/bin.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/bin.cc
@@ -49,6 +49,7 @@
 Bin::Bin()
 {
     head = NULL;
+    current = NULL;
 }
 
 Bin::~Bin()
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/bufpool.cc b/mesalib/src/glu/sgi/libnurbs/internals/bufpool.cc
index 8cc847ab2..53ac1a569 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/bufpool.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/bufpool.cc
@@ -60,6 +60,9 @@ Pool::Pool( int _buffersize, int initpoolsize, const char *n )
     curblock	= 0;
     freelist	= 0;
     nextfree	= 0;
+    for (int i = 0; i < NBLOCKS; i++) {
+        blocklist[i] = 0;
+    }
 }
 
 /*-----------------------------------------------------------------------------
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/curve.cc b/mesalib/src/glu/sgi/libnurbs/internals/curve.cc
index 33e275264..b7c4d4a9c 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/curve.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/curve.cc
@@ -60,6 +60,12 @@ Curve::Curve( Quilt_ptr geo, REAL pta, REAL ptb, Curve *c )
     cullval = mapdesc->isCulling() ? CULL_ACCEPT : CULL_TRIVIAL_ACCEPT;
     order = geo->qspec[0].order;
     stride = MAXCOORDS;
+    for( int i = 0; i < MAXORDER * MAXCOORDS; i++ ) {
+        cpts[i] = 0;
+        spts[i] = 0;
+    }
+    stepsize = 0;
+    minstepsize = 0;
 
     REAL *ps  = geo->cpts; 
     Quiltspec_ptr qs = geo->qspec;
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/curvelist.cc b/mesalib/src/glu/sgi/libnurbs/internals/curvelist.cc
index 872eb5816..8f2ee4678 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/curvelist.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/curvelist.cc
@@ -43,7 +43,6 @@
 #include "quilt.h"
 #include "curvelist.h"
 #include "curve.h"
-#include "nurbsconsts.h"
 #include "types.h"
 
 Curvelist::Curvelist( Quilt *quilts, REAL pta, REAL ptb )
@@ -54,20 +53,23 @@ Curvelist::Curvelist( Quilt *quilts, REAL pta, REAL ptb )
     range[0] = pta;
     range[1] = ptb;
     range[2] = ptb - pta;
+    needsSubdivision = 0;
+    stepsize = 0;
 }
 
 Curvelist::Curvelist( Curvelist &upper, REAL value )
 {
-    Curvelist &lower = *this;
     curve = 0;
     for( Curve *c = upper.curve; c; c = c->next )
 	curve = new Curve( *c, value, curve );
 
-    lower.range[0] = upper.range[0];
-    lower.range[1] = value;
-    lower.range[2] = value - upper.range[0];
+    range[0] = upper.range[0];
+    range[1] = value;
+    range[2] = value - upper.range[0];
     upper.range[0] = value;
     upper.range[2] = upper.range[1] - value;
+    needsSubdivision = 0;
+    stepsize = 0;
 }
 
 Curvelist::~Curvelist()
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/curvesub.cc b/mesalib/src/glu/sgi/libnurbs/internals/curvesub.cc
index f85acc269..91f2ca8ce 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/curvesub.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/curvesub.cc
@@ -45,7 +45,6 @@
 #include "backend.h"
 #include "quilt.h"
 #include "curvelist.h"
-#include "curve.h"
 #include "nurbsconsts.h"
 
 /*--------------------------------------------------------------------------
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/displaylist.h b/mesalib/src/glu/sgi/libnurbs/internals/displaylist.h
index 22cbec378..d009a4251 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/displaylist.h
+++ b/mesalib/src/glu/sgi/libnurbs/internals/displaylist.h
@@ -59,6 +59,7 @@ Dlnode::Dlnode( PFVS _work, void *_arg, PFVS _cleanup )
     work = _work;
     arg = _arg;
     cleanup = _cleanup;
+    next = 0;
 }
 
 class DisplayList {
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/gridvertex.h b/mesalib/src/glu/sgi/libnurbs/internals/gridvertex.h
index 36a65c7bd..2e27436ef 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/gridvertex.h
+++ b/mesalib/src/glu/sgi/libnurbs/internals/gridvertex.h
@@ -38,7 +38,7 @@
 
 struct GridVertex {
     long 		gparam[2];
-			GridVertex( void ) {}
+			GridVertex( void ) { gparam[0] = 0, gparam[1] = 0; }
 			GridVertex( long u, long v ) { gparam[0] = u, gparam[1] = v; }
     void		set( long u, long v ) { gparam[0] = u, gparam[1] = v; }
     long		nextu() { return gparam[0]++; }
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/knotvector.cc b/mesalib/src/glu/sgi/libnurbs/internals/knotvector.cc
index 9eb5cbace..dcbf0067d 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/knotvector.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/knotvector.cc
@@ -61,6 +61,9 @@ void Knotvector::init( long _knotcount, long _stride, long _order, INREAL *_knot
 
 Knotvector::Knotvector( void )
 {
+    knotcount = 0;
+    stride = 0;
+    order = 0;
     knotlist = 0;
 }
 
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/maplist.cc b/mesalib/src/glu/sgi/libnurbs/internals/maplist.cc
index f944d1529..e51a3e85d 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/maplist.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/maplist.cc
@@ -44,7 +44,6 @@
 #include "nurbsconsts.h"
 #include "maplist.h"
 #include "mapdesc.h"
-#include "backend.h"
  
 Maplist::Maplist( Backend& b )
     : mapdescPool( sizeof( Mapdesc ), 10, "mapdesc pool" ),
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/mesher.cc b/mesalib/src/glu/sgi/libnurbs/internals/mesher.cc
index 9cc436adb..b2d83f412 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/mesher.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/mesher.cc
@@ -58,6 +58,9 @@ Mesher::Mesher( Backend& b )
 {
     stacksize = 0;
     vdata = 0;
+    last[0] = 0;
+    last[1] = 0;
+    itop = 0;
     lastedge = 0; //needed to prevent purify UMR 
 }
 
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/patchlist.cc b/mesalib/src/glu/sgi/libnurbs/internals/patchlist.cc
index 989d2dd00..6a400ab6f 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/patchlist.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/patchlist.cc
@@ -44,7 +44,6 @@
 #include "quilt.h"
 #include "patchlist.h"
 #include "patch.h"
-#include "nurbsconsts.h"
 
 Patchlist::Patchlist( Quilt *quilts, REAL *pta, REAL *ptb )
 {
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/quilt.cc b/mesalib/src/glu/sgi/libnurbs/internals/quilt.cc
index 4fc58b747..d16f4bfec 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/quilt.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/quilt.cc
@@ -44,9 +44,7 @@
 #include "backend.h"
 #include "mapdesc.h"
 #include "flist.h"
-#include "knotvector.h"
 #include "patchlist.h"
-#include "math.h"     //fglu_abs()
 #include "simplemath.h" //min()
 
 /* local preprocessor definitions */
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/reader.cc b/mesalib/src/glu/sgi/libnurbs/internals/reader.cc
index 6135eef60..c59240d26 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/reader.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/reader.cc
@@ -64,6 +64,7 @@ O_pwlcurve::O_pwlcurve( long _type, long count, INREAL *array, long byte_stride,
     owner = 0;
     pts = trimpts;
     npts = (int) count;
+    save = 0;
     int i;
 
     /* copy user data into internal trimming data structures */
@@ -115,6 +116,7 @@ O_pwlcurve::O_pwlcurve( long _type, long count, INREAL *array, long byte_stride,
     owner = 0;
     pts = trimpts;
     npts = (int) count;
+    save = 0;
 
     /* copy user data into internal trimming data structures */
     switch( _type ) {
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/reader.h b/mesalib/src/glu/sgi/libnurbs/internals/reader.h
index 8a8dcebb5..cae6cada4 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/reader.h
+++ b/mesalib/src/glu/sgi/libnurbs/internals/reader.h
@@ -64,7 +64,7 @@ struct O_curve : public PooledObj {
     int			save;		/* 1 if in display list		*/
     long		nuid;
     			O_curve() { next = 0; used = 0; owner = 0; 
-				    curve.o_pwlcurve = 0; }
+				    curve.o_pwlcurve = 0; curvetype = ct_none; save = 0; nuid = 0; }
     };
 
 struct O_nurbscurve : public PooledObj {
@@ -77,7 +77,7 @@ struct O_nurbscurve : public PooledObj {
     int			save;		/* 1 if in display list		*/
     O_curve *		owner;		/* owning curve 		*/
 			O_nurbscurve( long _type ) 
-			   { type = _type; owner = 0; next = 0; used = 0; }
+			   { bezier_curves = 0; type = _type; tesselation = 0; method = 0; next = 0; used = 0; save = 0; owner = 0; }
     };
  
 class O_pwlcurve : public PooledObj {
@@ -95,7 +95,7 @@ struct O_trim : public PooledObj {
     O_curve		*o_curve;	/* closed trim loop	 	*/
     O_trim *		next;		/* next loop along trim 	*/
     int			save;		/* 1 if in display list		*/
-			O_trim() { next = 0; o_curve = 0; }
+			O_trim() { next = 0; o_curve = 0; save = 0; }
     };
 
 struct O_nurbssurface : public PooledObj {
@@ -106,7 +106,7 @@ struct O_nurbssurface : public PooledObj {
     int			save;		/* 1 if in display list		*/
     int			used;		/* 1 if prev called in block	*/
 			O_nurbssurface( long _type ) 
-			   { type = _type; owner = 0; next = 0; used = 0; }
+			   { bezier_patches = 0; type = _type; owner = 0; next = 0; save = 0; used = 0; }
     };
 
 struct O_surface : public PooledObj {
@@ -114,7 +114,7 @@ struct O_surface : public PooledObj {
     O_trim *		o_trim;		/* list of trim loops		*/
     int			save;		/* 1 if in display list		*/
     long		nuid;
-			O_surface() { o_trim = 0; o_nurbssurface = 0; }
+			O_surface() { o_trim = 0; o_nurbssurface = 0; save = 0; nuid = 0; }
     };
 
 struct Property : public PooledObj {
@@ -123,9 +123,9 @@ struct Property : public PooledObj {
     REAL		value;
     int			save;		/* 1 if in display list		*/
 			Property( long _type, long _tag, INREAL _value )
-			{ type = _type; tag = _tag; value = (REAL) _value; }
+			{ type = _type; tag = _tag; value = (REAL) _value; save = 0; }
 			Property( long _tag, INREAL _value )
-			{ type = 0; tag = _tag; value = (REAL) _value; }
+			{ type = 0; tag = _tag; value = (REAL) _value; save = 0; }
     };
 
 class NurbsTessellator;
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/renderhints.cc b/mesalib/src/glu/sgi/libnurbs/internals/renderhints.cc
index a3aa62d42..4b347ebc7 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/renderhints.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/renderhints.cc
@@ -40,7 +40,6 @@
 #include "glimports.h"
 #include "mystdio.h"
 #include "renderhints.h"
-#include "defines.h"
 #include "nurbsconsts.h"
 
 
@@ -54,6 +53,10 @@ Renderhints::Renderhints()
     errorchecking 	= N_MSG;
     subdivisions 	= 6.0;
     tmp1 		= 0.0;
+    displaydomain 	= 0;
+    maxsubdivisions 	= (int) subdivisions;
+    wiretris	 	= 0;
+    wirequads	 	= 0;
 }
 
 void
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/simplemath.h b/mesalib/src/glu/sgi/libnurbs/internals/simplemath.h
index 0a060c57e..d00062dc7 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/simplemath.h
+++ b/mesalib/src/glu/sgi/libnurbs/internals/simplemath.h
@@ -38,6 +38,8 @@
 
 /* simple inline routines */
 
+#include "types.h"
+
 inline int 
 max( int x, int y ) { return ( x < y ) ? y : x; }
 
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/slicer.cc b/mesalib/src/glu/sgi/libnurbs/internals/slicer.cc
index 27d2a650d..1b18d73c1 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/slicer.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/slicer.cc
@@ -1181,6 +1181,10 @@ void Slicer::slice(Arc_ptr loop)
 Slicer::Slicer( Backend &b ) 
 	: CoveAndTiler( b ), Mesher( b ), backend( b )
 {
+    oneOverDu = 0;
+    du = 0;
+    dv = 0;
+    isolines = 0;
     ulinear = 0;
     vlinear = 0;
 }
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/subdivider.cc b/mesalib/src/glu/sgi/libnurbs/internals/subdivider.cc
index cc0b51470..ccddc270f 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/subdivider.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/subdivider.cc
@@ -531,16 +531,18 @@ Subdivider::nonSamplingSplit(
 		     patchlist.pspec[param].range[1] ) * 0.5;
 	split( source, left, right, param, mid );
 	Patchlist subpatchlist( patchlist, param, mid );
-	if( left.isnonempty() )
+	if( left.isnonempty() ) {
 	    if( subpatchlist.cullCheck() == CULL_TRIVIAL_REJECT ) 
 		freejarcs( left );
 	    else
 	        nonSamplingSplit( left, subpatchlist, subdivisions-1, param );
-	if( right.isnonempty() ) 
+	}
+	if( right.isnonempty() ) {
 	    if( patchlist.cullCheck() == CULL_TRIVIAL_REJECT ) 
 		freejarcs( right );
 	    else
 	        nonSamplingSplit( right, patchlist, subdivisions-1, param );
+	}
 
     } else {
 	// make bbox calls
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/trimregion.cc b/mesalib/src/glu/sgi/libnurbs/internals/trimregion.cc
index efe789356..4aeb5eeac 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/trimregion.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/trimregion.cc
@@ -41,7 +41,6 @@
 #include "myassert.h"
 #include "mystdio.h"
 #include "trimregion.h"
-#include "backend.h"
 
 TrimRegion::TrimRegion( void )
 {
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/uarray.cc b/mesalib/src/glu/sgi/libnurbs/internals/uarray.cc
index f0e236437..4b3329c0f 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/uarray.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/uarray.cc
@@ -47,6 +47,7 @@ Uarray::Uarray( void )
 {
     uarray = 0;
     size = 0;
+    ulines = 0;
 }
 
 Uarray::~Uarray( void )
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/varray.cc b/mesalib/src/glu/sgi/libnurbs/internals/varray.cc
index 31cc73a9d..1cb235443 100644
--- a/mesalib/src/glu/sgi/libnurbs/internals/varray.cc
+++ b/mesalib/src/glu/sgi/libnurbs/internals/varray.cc
@@ -53,8 +53,16 @@ inline long sgn( REAL x )
 
 Varray::Varray( void )
 {
+    int i;
+
     varray = 0;
     size = 0;
+    numquads = 0;
+
+    for (i = 0; i < 1000; i++) {
+        vval[i] = 0;
+        voffset[i] = 0;
+    }
 }
 
 Varray::~Varray( void )
diff --git a/mesalib/src/glu/sgi/libnurbs/nurbtess/directedLine.cc b/mesalib/src/glu/sgi/libnurbs/nurbtess/directedLine.cc
index 74450352d..d942db728 100644
--- a/mesalib/src/glu/sgi/libnurbs/nurbtess/directedLine.cc
+++ b/mesalib/src/glu/sgi/libnurbs/nurbtess/directedLine.cc
@@ -309,6 +309,8 @@ directedLine::directedLine()
   nextPolygon = NULL;
   rootBit = 0;/*important to initilzae to 0 meaning not root yet*/
   rootLink = NULL;
+  direction = INCREASING;
+  sline = NULL;
 }
 
 directedLine::~directedLine()
@@ -791,22 +793,30 @@ directedLine* readAllPolygons(char* filename)
 {
   Int i,j;
   FILE* fp = fopen(filename, "r");
-  assert(fp);
   Int nPolygons;
-  fscanf(fp, "%i", &nPolygons);
+  int result;
+
+  assert(fp);
+  result = fscanf(fp, "%i", &nPolygons);
+  assert(result != EOF);
   directedLine *ret = NULL;
 
   for(i=0; i<nPolygons; i++)
     {
       Int nEdges;
-      fscanf(fp, "%i", &nEdges);
-      Real vert[2][2];
+      result = fscanf(fp, "%i", &nEdges);
+      assert(result != EOF);
+      Real vert[2][2] = { { 0 } };
       Real VV[2][2];
       /*the first two vertices*/
-      fscanf(fp, "%f", &(vert[0][0]));
-      fscanf(fp, "%f", &(vert[0][1]));
-      fscanf(fp, "%f", &(vert[1][0]));
-      fscanf(fp, "%f", &(vert[1][1]));
+      result = fscanf(fp, "%f", &(vert[0][0]));
+      assert(result != EOF);
+      result = fscanf(fp, "%f", &(vert[0][1]));
+      assert(result != EOF);
+      result = fscanf(fp, "%f", &(vert[1][0]));
+      assert(result != EOF);
+      result = fscanf(fp, "%f", &(vert[1][1]));
+      assert(result != EOF);
       VV[1][0] = vert[0][0];
       VV[1][1] = vert[0][1];
       sampledLine *sLine = new sampledLine(2, vert);
@@ -818,8 +828,10 @@ thisPoly->rootLinkSet(NULL);
 	{
 	  vert[0][0]=vert[1][0];
 	  vert[0][1]=vert[1][1];
-	  fscanf(fp, "%f", &(vert[1][0]));
-	  fscanf(fp, "%f", &(vert[1][1]));
+	  result = fscanf(fp, "%f", &(vert[1][0]));
+	  assert(result != EOF);
+	  result = fscanf(fp, "%f", &(vert[1][1]));
+	  assert(result != EOF);
 	  sLine = new sampledLine(2,vert);
 	  dLine = new directedLine(INCREASING, sLine);
 dLine->rootLinkSet(thisPoly);
diff --git a/mesalib/src/glu/sgi/libnurbs/nurbtess/monoChain.cc b/mesalib/src/glu/sgi/libnurbs/nurbtess/monoChain.cc
index 814bf32fa..cb28129ad 100644
--- a/mesalib/src/glu/sgi/libnurbs/nurbtess/monoChain.cc
+++ b/mesalib/src/glu/sgi/libnurbs/nurbtess/monoChain.cc
@@ -127,6 +127,7 @@ monoChain::monoChain(directedLine* cHead, directedLine* cTail)
     current = chainTail;
 
   isKey = 0;
+  keyY = 0;
 }
 
 //insert a new line between prev and this
@@ -263,6 +264,7 @@ monoChain* directedLineLoopToMonoChainLoop(directedLine* loop)
 	  prevCusp = temp;	  
 	}
     }
+  assert(ret);
   ret->insert(new monoChain(prevCusp, firstCusp));
 
   return ret;
diff --git a/mesalib/src/glu/sgi/libnurbs/nurbtess/partitionY.cc b/mesalib/src/glu/sgi/libnurbs/nurbtess/partitionY.cc
index 297c62997..e097461ac 100644
--- a/mesalib/src/glu/sgi/libnurbs/nurbtess/partitionY.cc
+++ b/mesalib/src/glu/sgi/libnurbs/nurbtess/partitionY.cc
@@ -111,8 +111,8 @@ Int isCusp(directedLine *v)
   else if(A[1] > B[1] && C[1] > B[1])
     return 1;
 
-  if(isAbove(v, v) && isAbove(v, v->getPrev()) ||
-     isBelow(v, v) && isBelow(v, v->getPrev()))
+  if((isAbove(v, v) && isAbove(v, v->getPrev())) ||
+     (isBelow(v, v) && isBelow(v, v->getPrev())))
     return 1;
   else
     return 0;
diff --git a/mesalib/src/glu/sgi/libnurbs/nurbtess/partitionY.h b/mesalib/src/glu/sgi/libnurbs/nurbtess/partitionY.h
index 8dda409de..5570c183d 100644
--- a/mesalib/src/glu/sgi/libnurbs/nurbtess/partitionY.h
+++ b/mesalib/src/glu/sgi/libnurbs/nurbtess/partitionY.h
@@ -39,7 +39,7 @@
  *or both at or below v. In addition, at least one of the ajacent verteces is
  *strictly below or above v. 
  * A vertex is a relex vertex if the internals angle is strictly greater than 
- *180. In other words, if the the signed area is negative:
+ *180. In other words, if the signed area is negative:
  *(x1, y1), (x2, y2), (x3, y3) are the three vertices along a polygon, the 
  *order is such that left hand side is inside the polygon. Then (x2,y2) is
  *reflex if: 
diff --git a/mesalib/src/glu/sgi/libnurbs/nurbtess/primitiveStream.cc b/mesalib/src/glu/sgi/libnurbs/nurbtess/primitiveStream.cc
index 26d05342f..dfdbd4e84 100644
--- a/mesalib/src/glu/sgi/libnurbs/nurbtess/primitiveStream.cc
+++ b/mesalib/src/glu/sgi/libnurbs/nurbtess/primitiveStream.cc
@@ -156,6 +156,8 @@ primStream::primStream(Int sizeLengths, Int sizeVertices)
   index_vertices = 0;
   size_lengths = sizeLengths;
   size_vertices = sizeVertices; 
+
+  counter = 0; 
 }
 
 primStream::~primStream()
diff --git a/mesalib/src/glu/sgi/libnurbs/nurbtess/sampleCompBot.cc b/mesalib/src/glu/sgi/libnurbs/nurbtess/sampleCompBot.cc
index e12f88bab..2e70f8393 100644
--- a/mesalib/src/glu/sgi/libnurbs/nurbtess/sampleCompBot.cc
+++ b/mesalib/src/glu/sgi/libnurbs/nurbtess/sampleCompBot.cc
@@ -207,7 +207,7 @@ void sampleBotRightWithGridLine(Real* botVertex,
     return;
   }
 
-  Int segIndexMono, segIndexPass;
+  Int segIndexMono = 0, segIndexPass;
   findBotRightSegment(rightChain,
 		      rightEnd,
 		      rightCorner,
@@ -293,7 +293,7 @@ void sampleBotLeftWithGridLine(Real* botVertex,
     return;
   }
 
-  Int segIndexPass, segIndexMono;
+  Int segIndexPass, segIndexMono = 0;
   findBotLeftSegment(leftChain, leftEnd, leftCorner, grid->get_u_value(leftU), segIndexMono, segIndexPass);
 
   sampleBotLeftWithGridLinePost(botVertex,
diff --git a/mesalib/src/glu/sgi/libnurbs/nurbtess/sampleCompTop.cc b/mesalib/src/glu/sgi/libnurbs/nurbtess/sampleCompTop.cc
index b7b929623..951e937c4 100644
--- a/mesalib/src/glu/sgi/libnurbs/nurbtess/sampleCompTop.cc
+++ b/mesalib/src/glu/sgi/libnurbs/nurbtess/sampleCompTop.cc
@@ -172,7 +172,7 @@ void sampleTopRightWithGridLine(Real* topVertex,
     return;
   }
 
-  Int segIndexSmall, segIndexLarge;
+  Int segIndexSmall = 0, segIndexLarge;
   findTopRightSegment(rightChain,
                       rightStart,
                       rightEnd,
@@ -294,7 +294,7 @@ void sampleTopLeftWithGridLine(Real* topVertex,
                                 primStream* pStream
                                 )
 {
-  Int segIndexSmall, segIndexLarge;
+  Int segIndexSmall = 0, segIndexLarge;
   //if left chain is empty, then there is only one top vertex with one grid 
   //  line
   if(leftEnd < leftStart) {
diff --git a/mesalib/src/glu/sgi/libnurbs/nurbtess/sampledLine.cc b/mesalib/src/glu/sgi/libnurbs/nurbtess/sampledLine.cc
index 6253a7c09..89f6c6e23 100644
--- a/mesalib/src/glu/sgi/libnurbs/nurbtess/sampledLine.cc
+++ b/mesalib/src/glu/sgi/libnurbs/nurbtess/sampledLine.cc
@@ -107,6 +107,9 @@ sampledLine::sampledLine(Real pt1[2], Real pt2[2])
 //needs tp call init to setup
 sampledLine::sampledLine()
 {
+  npoints = 0;
+  points = NULL;
+  next = NULL;
 }
 
 //warning: ONLY pointer is copies!!!