Silence compiler warnings about variables being "maybe uninitialized".
--- Mesa.orig/src/mesa/swrast/s_triangle.c
+++ Mesa/src/mesa/swrast/s_triangle.c
@@ -534,7 +534,7 @@
 #define T_SCALE theight
 
 #define SETUP_CODE							\
-   struct affine_info info;						\
+   struct affine_info info = {0};					\
    struct gl_texture_unit *unit = ctx->Texture.Unit+0;			\
    struct gl_texture_object *obj = unit->Current2D;			\
    const GLint b = obj->BaseLevel;					\
@@ -806,7 +806,7 @@
 #define INTERP_TEX 1
 
 #define SETUP_CODE							\
-   struct persp_info info;						\
+   struct persp_info info = {0};					\
    const struct gl_texture_unit *unit = ctx->Texture.Unit+0;		\
    const struct gl_texture_object *obj = unit->Current2D;		\
    const GLint b = obj->BaseLevel;					\
--- Mesa.orig/src/mesa/swrast/s_tritemp.h
+++ Mesa/src/mesa/swrast/s_tritemp.h
@@ -201,7 +201,7 @@
 #endif
    GLinterp vMin_fx, vMin_fy, vMid_fx, vMid_fy, vMax_fx, vMax_fy;
 
-   struct sw_span span;
+   struct sw_span span = {0};
 
    INIT_SPAN(span, GL_POLYGON, 0, 0, 0);
 
@@ -741,14 +741,14 @@
          GLfixed tLeft=0, dtOuter=0, dtInner;
 #endif
 #ifdef INTERP_TEX
-         GLfloat sLeft[MAX_TEXTURE_COORD_UNITS];
-         GLfloat tLeft[MAX_TEXTURE_COORD_UNITS];
-         GLfloat uLeft[MAX_TEXTURE_COORD_UNITS];
-         GLfloat vLeft[MAX_TEXTURE_COORD_UNITS];
-         GLfloat dsOuter[MAX_TEXTURE_COORD_UNITS], dsInner[MAX_TEXTURE_COORD_UNITS];
-         GLfloat dtOuter[MAX_TEXTURE_COORD_UNITS], dtInner[MAX_TEXTURE_COORD_UNITS];
-         GLfloat duOuter[MAX_TEXTURE_COORD_UNITS], duInner[MAX_TEXTURE_COORD_UNITS];
-         GLfloat dvOuter[MAX_TEXTURE_COORD_UNITS], dvInner[MAX_TEXTURE_COORD_UNITS];
+         GLfloat sLeft[MAX_TEXTURE_COORD_UNITS] = {0};
+         GLfloat tLeft[MAX_TEXTURE_COORD_UNITS] = {0};
+         GLfloat uLeft[MAX_TEXTURE_COORD_UNITS] = {0};
+         GLfloat vLeft[MAX_TEXTURE_COORD_UNITS] = {0};
+         GLfloat dsOuter[MAX_TEXTURE_COORD_UNITS] = {0}, dsInner[MAX_TEXTURE_COORD_UNITS] = {0};
+         GLfloat dtOuter[MAX_TEXTURE_COORD_UNITS] = {0}, dtInner[MAX_TEXTURE_COORD_UNITS] = {0};
+         GLfloat duOuter[MAX_TEXTURE_COORD_UNITS] = {0}, duInner[MAX_TEXTURE_COORD_UNITS] = {0};
+         GLfloat dvOuter[MAX_TEXTURE_COORD_UNITS] = {0}, dvInner[MAX_TEXTURE_COORD_UNITS] = {0};
 #endif
 
          for (subTriangle=0; subTriangle<=1; subTriangle++) {
--- Mesa.orig/src/mesa/swrast_setup/ss_tritmp.h
+++ Mesa/src/mesa/swrast_setup/ss_tritmp.h
@@ -30,14 +30,14 @@
 {
    struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
    SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts;
-   SWvertex *v[3];
-   GLfloat z[3];
+   SWvertex *v[3] = {0};;
+   GLfloat z[3] = {0};;
    GLfloat offset;
    GLenum mode = GL_FILL;
    GLuint facing = 0;
-   GLchan saved_color[3][4];
-   GLchan saved_spec[3][4];
-   GLfloat saved_index[3];
+   GLchan saved_color[3][4] = {0};
+   GLchan saved_spec[3][4] = {0};
+   GLfloat saved_index[3] = {0};;
 
    v[0] = &verts[e0];
    v[1] = &verts[e1];
--- Mesa.orig/src/mesa/swrast_setup/ss_triangle.c
+++ Mesa/src/mesa/swrast_setup/ss_triangle.c
@@ -56,9 +56,9 @@
    SWvertex *v0 = &verts[e0];
    SWvertex *v1 = &verts[e1];
    SWvertex *v2 = &verts[e2];
-   GLchan c[2][4];
-   GLchan s[2][4];
-   GLfloat i[2];
+   GLchan c[2][4] = {0};
+   GLchan s[2][4] = {0};
+   GLfloat i[2] = {0};
 
    /* cull testing */
    if (ctx->Polygon.CullFlag) {
@@ -115,9 +115,9 @@
    SWvertex *v0 = &verts[e0];
    SWvertex *v1 = &verts[e1];
    SWvertex *v2 = &verts[e2];
-   GLchan c[2][4];
-   GLchan s[2][4];
-   GLfloat i[2];
+   GLchan c[2][4] = {0};
+   GLchan s[2][4] = {0};
+   GLfloat i[2] = {0};
 
    /* cull testing */
    if (ctx->Polygon.CullFlag) {