protected all codegen behind AllowCodegen

src/mesa/tnl/t_context.c

@@ -81,6 +81,9 @@ _tnl_CreateContext( GLcontext *ctx )
       return GL_FALSE;
    }
 
+   if (getenv("MESA_CODEGEN"))
+      tnl->AllowCodegen = GL_TRUE;
+
    /* Initialize the VB.
     */
    tnl->vb.Size = ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES;
@@ -121,10 +124,6 @@ _tnl_CreateContext( GLcontext *ctx )
    tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
    tnl->Driver.NotifyMaterialChange = _mesa_validate_all_lighting_tables;
    
-
-   if (getenv("MESA_CODEGEN"))
-      tnl->AllowCodegen = GL_TRUE;
-
    return GL_TRUE;
 }
 

src/mesa/tnl/t_vtx_api.c

@@ -905,7 +905,9 @@ void _tnl_vtx_init( GLcontext *ctx )
    _tnl_current_init( ctx );
    _tnl_exec_vtxfmt_init( ctx );
    _tnl_generic_exec_vtxfmt_init( ctx );
-   _tnl_x86_exec_vtxfmt_init( ctx ); /* x86 DISPATCH_ATTRFV */
+   if (tnl->AllowCodegen) {
+      _tnl_x86_exec_vtxfmt_init( ctx ); /* x86 DISPATCH_ATTRFV */
+   }
 
    _mesa_install_exec_vtxfmt( ctx, &tnl->exec_vtxfmt );
 

src/mesa/tnl/t_vtx_x86_gcc.S

@@ -30,7 +30,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
  *   Keith Whitwell <keith@tungstengraphics.com>
  */
 
-#if !defined (__DJGPP__)
+#if !defined (__DJGPP__) && !defined (__MINGW32__)
 
 #define GLOBL( x )	\
 .globl x;		\
@@ -58,12 +58,10 @@ _##x:
 
 // [dBorca] TODO
 // Unfold functions for each vertex size?
-// Build super-specialized MMX/SSE versions?
+// Build super-specialized SSE versions?
 // STDCALL woes (HAVE_NONSTANDARD_GLAPIENTRY):
 //   need separate routine for the non "fv" case,
-//   to clean up the stack (I guess we could codegen
-//   'ret nn' insn)! Also we need to call notify, then
-//   return, instead of jump!
+//   to clean up the stack!
 
 GLOBL ( _tnl_x86_Vertex1fv )
 	movl	4(%esp), %ecx