User@Ubuntu:~/ratbox-respond-1.0/ratbox-respond$ ./configure --enable-openssl
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for a BSD-compatible install... /usr/bin/install -c
checking for rm... /bin/rm
checking for cp... /bin/cp
checking for mv... /bin/mv
checking for touch... /usr/bin/touch
checking how to run the C preprocessor... gcc -E
checking for egrep... grep -E
checking for ANSI C header files... yes
checking for OpenSSL... /usr/local/ssl
checking for OpenSSL 0.9.6 or above... found
checking for RSA_free in -lcrypto... no
configure: creating ./config.status
config.status: creating Makefile
config.status: creating setup.h
User@Ubuntu:~/ratbox-respond-1.0/ratbox-respond$ make
gcc -g -O2 -I /usr/include -I/usr/local/ssl/include -o ratbox-respond ratbox-respond.c  -L /usr/lib -L/usr/local/ssl/lib -lcrypto
ratbox-respond.c: In function ‘read_challenge’:
ratbox-respond.c:200:9: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
ratbox-respond.c:204:14: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
/usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_globallookup':
dso_dlfcn.c:(.text+0x1d): undefined reference to `dlopen'
dso_dlfcn.c:(.text+0x33): undefined reference to `dlsym'
dso_dlfcn.c:(.text+0x3d): undefined reference to `dlclose'
/usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_bind_func':
dso_dlfcn.c:(.text+0x3b1): undefined reference to `dlsym'
dso_dlfcn.c:(.text+0x490): undefined reference to `dlerror'
/usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_bind_var':
dso_dlfcn.c:(.text+0x511): undefined reference to `dlsym'
dso_dlfcn.c:(.text+0x5f0): undefined reference to `dlerror'
/usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_load':
dso_dlfcn.c:(.text+0x667): undefined reference to `dlopen'
dso_dlfcn.c:(.text+0x6de): undefined reference to `dlclose'
dso_dlfcn.c:(.text+0x715): undefined reference to `dlerror'
/usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_pathbyaddr':
dso_dlfcn.c:(.text+0x7b1): undefined reference to `dladdr'
dso_dlfcn.c:(.text+0x819): undefined reference to `dlerror'
/usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_unload':
dso_dlfcn.c:(.text+0x87a): undefined reference to `dlclose'
collect2: ld returned 1 exit status
make: *** [build] Error 1

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