opkg install strongswan-mod-md4
Package strongswan-mod-md4 (5.5.3-1) installed in root is up to date.
**Configuring kmod-lib-zlib-deflate.**
**failed to find a module named zlib_deflate**
**Configuring kmod-lib-zlib-inflate.**
**failed to find a module named zlib_inflate**
**Collected errors:**
** * pkg_run_script: package "kmod-lib-zlib-deflate" postinst script returned status 255.**
** * opkg_configure: kmod-lib-zlib-deflate.postinst returned 255.**
** * pkg_run_script: package "kmod-lib-zlib-inflate" postinst script returned status 255.**
** * opkg_configure: kmod-lib-zlib-inflate.postinst returned 255.**