Hi, a bug similar to 344688 seems to affect camlimages on sparc: $ ocamlopt -I +camlimages ci_core.cmxa ci_tiff.cmxa test.ml /usr/lib/ocaml/3.09.0/camlimages/libci_tiff.a(tiffwrite.o): In function `open_tiff_file_for_write': undefined reference to `caml_Double_val' collect2: ld returned 1 exit status Error during linking Could you queue a binNMU to fix this (I checked that with a rebuilt camlimages, this problem goes away)? Thanks, Julien Cristau