> On Tue, 2015-03-31 at 09:27 +0200, Klaus Gast wrote: >> Hi, >> >> I am trying to compile openconnect version 7.06 on my Synology NAS DS >> 212+ >> This works fine up to version 7.04 but if I try to compile 7.06 I always >> end up with the following error: >> >> ============================================================= >> ./.libs/libopenconnect.so: undefined reference to `esp_shutdown' >> collect2: ld returned 1 exit status >> ============================================================= > > That is defined in esp.c which is compiled unconditionally. Could it be > some clash with some system header? Do you see some related warning > during compilation? You have an ancient OpenSSL. Should be fixed by http://git.infradead.org/users/dwmw2/openconnect.git/commitdiff/25e2d3a8e607742b28cddb5443a3b7ad86254b4c or preferably by updating. -- dwmw2