Someone

root@OpenWrt:/# ipkg list_installed xmail
xmail - 1.24-1 -
Done.
root@OpenWrt:/# ipkg files xmail | grep bin
/usr/bin/sendmail
/var/MailRoot/bin
/usr/bin/MkUsers
/usr/bin/XMCrypt
/usr/bin/CtrlClnt
/var/MailRoot/tabindex
/usr/bin/XMail
root@OpenWrt:/# ldd /usr/bin/XMail
/bin/ash: /usr/bin/XMail: not found
root@OpenWrt:/# ldd /usr/sbin/php
        libcrypt.so.0 => /lib/libcrypt.so.0 (0xb7fc2000)
        libz.so.1 => /usr/lib/libz.so.1 (0xb7fb0000)
        libm.so.0 => /lib/libm.so.0 (0xb7fa9000)
        libnsl.so.0 => /lib/libnsl.so.0 (0xb7fa7000)
        libcrypto.so.0.9.8 => /usr/lib/libcrypto.so.0.9.8 (0xb7ebf000)
        libssl.so.0.9.8 => /usr/lib/libssl.so.0.9.8 (0xb7e8d000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb7e84000)
        libc.so.0 => /lib/libc.so.0 (0xb7e37000)
        libdl.so.0 => /lib/libdl.so.0 (0xb7e34000)
        ld-uClibc.so.0 => /lib/ld-uClibc.so.0 (0xb7fd9000)
root@OpenWrt:/#