# something is missing - no idea what and why :-D

eval "$(
  declare -f package_gcc7-libs | \
    sed '
      /libgcc_s/ d
      s@libsanitizer/{a,l,ub,t}san@libsanitizer/{a,l,ub}san@
    '
  declare -f package_gcc7 | \
    sed '
      /^\s*rm .*lib{stdc++,gcc_s}\.so;$/ s/;$/*;/
    '
)"