Hi, >I tried to fix the issue with the duplicated definition of log2 in
>clustalo in Git[1] but failed. It probably failed since even if I >remove the line that should be excluded by #ifndef HAVE_LOG2 the problem >persists and so I assume there is another log2 definition done >somewhere. pull-debians-source clustalo cd clustalo-* grep log2 . -R a quick search seems to return ./src/clustal/mbed.c:#define log2(x) (log(x) / 0.69314718055994530942) there is also an interesting define /* Has log2() */ #ifndef CLUSTAL_OMEGA_HAVE_LOG2 #define CLUSTAL_OMEGA_HAVE_LOG2 1 #endif G.