I am trying to compile Stunnel 4.21 on Solaris 10 with no luck. I am using Openssl 0.9.8f. After running configure, I run make and receive the following output: (truncated for size) ------------------------------------------------------- /bin/bash ../libtool --tag=CC --mode=link gcc -m64 -g -O2 -Wall -Wshadow -Wcast-align -Wpointer-arith -I/usr/local/ssl/include -o stunnel file.o client.o log.o options.o protocol.o network.o resolver.o ssl.o ctx.o verify.o sthreads.o stunnel.o pty.o -lz -ldl -lsocket -lnsl -lpthread -L/usr/local/ssl/lib -lssl -lcrypto gcc -m64 -g -O2 -Wall -Wshadow -Wcast-align -Wpointer-arith -I/usr/local/ssl/include -o stunnel file.o client.o log.o options.o protocol.o network.o resolver.o ssl.o ctx.o verify.o sthreads.o stunnel.o pty.o -lz -ldl -lsocket -lnsl -lpthread -L/usr/local/ssl/lib -lssl -lcrypto Undefined first referenced symbol in file BIO_set_flags protocol.o SSL_CTX_set_info_callback ctx.o ld: fatal: Symbol referencing errors. No output written to stunnel collect2: ld returned 1 exit status *** Error code 1 make: Fatal error: Command failed for target `stunnel' Current working directory /tmp/stunnel-4.20/src *** Error code 1 The following command caused the error: failcom='exit 1'; \ for f in x $MAKEFLAGS; do \ case $f in \ *=* | --[!k]*);; \ *k*) failcom='fail=yes';; \ esac; \ done; \ dot_seen=no; \ target=`echo all-recursive | sed s/-recursive//`; \ list='src doc tools'; for subdir in $list; do \ echo "Making $target in $subdir"; \ if test "$subdir" = "."; then \ dot_seen=yes; \ local_target="$target-am"; \ else \ local_target="$target"; \ fi; \ (cd $subdir && make $local_target) \ || eval $failcom; \ done; \ if test "$dot_seen" = "no"; then \ make "$target-am" || exit 1; \ fi; test -z "$fail" make: Fatal error: Command failed for target `all-recursive' I have tried Stunnel version 4.21, 4.20 with the same results. I have used Stunnel to help build several secure log servers in the past, and I've never had problems getting it compiled and installed. Any help would be greatly appreciated. cod3fr3ak