The latest OpenSSL 1.0.2 causes OpenConnect to fail to compile. It looks like it's trying to link into the static libraries rather than dynamic libraries on OS X - I don't know if that's expected behaviour or not though, so apologies if that's expected. If you specify the OpenSSL (1.0.2) directory to build against: ========================================================================================= *** Warning: Linking the shared library libopenconnect.la against the *** static library /usr/local/opt/openssl/lib/libssl.a is not portable! *** Warning: Linking the shared library libopenconnect.la against the *** static library /usr/local/opt/openssl/lib/libcrypto.a is not portable! /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .libs/libopenconnect.a(libopenconnect_la-compat.o) has no symbols /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .libs/libopenconnect.a(libopenconnect_la-compat.o) has no symbols CCLD openconnect Undefined symbols for architecture x86_64: "_openconnect_check_peer_cert_hash", referenced from: _validate_peer_cert in openconnect-main.o "_openconnect_fopen_utf8", referenced from: _main in openconnect-main.o "_openconnect_free_cert_info", referenced from: _validate_peer_cert in openconnect-main.o "_openconnect_get_hostname", referenced from: _main in openconnect-main.o "_openconnect_get_ifname", referenced from: _main in openconnect-main.o "_openconnect_get_ip_info", referenced from: _main in openconnect-main.o "_openconnect_get_peer_cert_details", referenced from: _validate_peer_cert in openconnect-main.o "_openconnect_get_peer_cert_hash", referenced from: _main in openconnect-main.o _validate_peer_cert in openconnect-main.o "_openconnect_has_oath_support", referenced from: _print_build_opts in openconnect-main.o "_openconnect_has_pkcs11_support", referenced from: _print_build_opts in openconnect-main.o "_openconnect_has_stoken_support", referenced from: _print_build_opts in openconnect-main.o "_openconnect_has_system_key_support", referenced from: _print_build_opts in openconnect-main.o "_openconnect_has_tss_blob_support", referenced from: _print_build_opts in openconnect-main.o "_openconnect_has_yubioath_support", referenced from: _print_build_opts in openconnect-main.o "_openconnect_init_ssl", referenced from: ========================================================================================= If you don't specify the OpenSSL directory it hooks into the system outdated OpenSSL, skipping over the OpenSSL 1.0.2 that is the first OpenSSL in the $PATH: ========================================================================================= otool -L /usr/local/bin/openconnect /usr/local/Cellar/openconnect/7.04/lib/libopenconnect.5.dylib (compatibility version 7.0.0, current version 7.0.0) /usr/lib/libssl.0.9.8.dylib (compatibility version 0.9.8, current version 0.9.8) /usr/lib/libcrypto.0.9.8.dylib (compatibility version 0.9.8, current version 0.9.8) ========================================================================================= Hopefully the readout is useful, Dom -- Sent from OS X. If you wish to communicate more securely my PGP Public Key is 0x872524db9d74326c.