gama_modification 2794 contrib/libtests/pngvalid.c    png_save_uint_32(pm->buffer+8, ((gama_modification*)me)->gamma);
gama_modification 5558 contrib/libtests/pngvalid.c    gama_modification gama_mod;
gama_modification 8878 contrib/libtests/pngvalid.c       gama_modification gama_mod;