export CGO_ENABLED="1"
  export CGO_CFLAGS="${SLKCFLAGS}"
  export CGO_CPPFLAGS="${SLKCFLAGS}"
  export CGO_CXXFLAGS="${SLKCFLAGS}"
  export CGO_LDFLAGS="${LDFLAGS}"

./mkversion.sh $MODULAR_PACKAGE_VERSION

( cd cmd
  autoreconf -i -f
  CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" \
  ./configure \
    --prefix=/usr \
    --libdir=/usr/lib${LIBDIRSUFFIX} \
    --libexecdir=/usr/lib${LIBDIRSUFFIX}/snapd \
    --sysconfdir=/etc \
    --localstatedir=/var \
    --mandir=/usr/man \
    --with-snap-mount-dir=/var/lib/snapd/snap \
    --disable-apparmor \
    --build=$ARCH-slackware-linux
)

mkdir -p bins

# dynamic, PIE
for p in snapd snap-failure snap-seccomp; do
  go build -o bins/$p -buildmode=pie \
    -ldflags "-s -linkmode external -extldflags '$LDFLAGS'" \
    ./cmd/$p
done

# static (no PIE; -static + buildmode=pie breaks with external linking)
for p in snap-update-ns snapctl; do
  go build -o bins/$p \
    -ldflags "-s -linkmode external -extldflags '$LDFLAGS -static'" \
    ./cmd/$p
done
make -C cmd
make -C cmd install-strip DESTDIR=$PKG

install -Dm755 -t $PKG/usr/lib${LIBDIRSUFFIX}/snapd \
  bins/snapd \
  bins/snap-failure \
  bins/snap-seccomp \
  bins/snap-update-ns \
  bins/snapctl

make -C data -j1 install DESTDIR=$PKG \
  SYSTEMDSYSTEMUNITDIR=/usr/lib/systemd/system \
  SYSTEMDUSERUNITDIR=/usr/lib/systemd/user \
  BINDIR=/usr/bin \
  LIBEXECDIR=/usr/lib${LIBDIRSUFFIX} \
  SNAP_MOUNT_DIR=/var/lib/snapd/snap \
  SNAPD_ENVIRONMENT_FILE=/etc/default/snapd