input=$1
config=$2
authors=$3
output=$4
version=$(cat $config | grep PACKAGE_VERSION | head -1 | cut -f 3 -d" " | tr -d "\"")
set -e; \
  d=`sed -n 's,/,-,g;s,.*\$$[D]ate: \(..........\).*,\1,p' $input`; \
  pod2man $input \
  | sed 's/^\.TH .*/.TH DARKTABLE 1 "'"$$d"'" "darktable-'$version'" "darktable"/' \
  | sed -e '/.*DREGGNAUTHORS.*/r '"$authors" | sed -e '/.*DREGGNAUTHORS.*/d' \
  > tmp.$$$$ \
  && mv -f tmp.$$$$ $output