I just tried to compile package xbl-1.1.4-33
with the new GNU compiler version 4.3 snapshot 20070126

The compiler said

transfo.c:100: warning: array subscript is above array bounds

The source code is

  for ( i=0;i<9;i++ ) tr->mat[0][i] = m[0][i] ;

but

  float m[3][3] ;

Suggest rewrite single for loop as double nested for loop.