if [ "$CARCH" = 'i486' -o "$CARCH" = 'i686' ]; then
  eval "$(
    declare -f build | \
      sed '
        s@./configure@./configure -no-sse2@g
      '
  )"
fi

makedepends=(${makedepends[@]/vulkan-headers/})
makedepends_i686+=(vulkan-headers)
makedepends_pentium4=("${makedepends_i686[@]}")
if [ "$CARCH" = 'i486' ]; then
  eval "$(
    declare -f build | \
      sed '
        s@./configure@./configure -no-feature-vulkan@g
      '
  )"
fi