Hi Jakub,
This patch on top of the previously posted option handling changes patch allows specifying -fconvert=swap,r16_ieee etc. (but will error on it when not on powerpc64le because in the library such swapping is only implemented for HAVE_REAL_17). Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?
OK! This is a much cleaner solution than what I had in mind, but didn't start work on, which was to make the option into a string and parse by hand. Best regards Thomas