apache error during iRedmil installation

[Fatemeh Mehdizadeh]

Hi all,
I want to install Iredmail 0.9.7 on my FreeBSD 11. I do the steps from
iRedmail's manual and now I encounter with this error during installation:













*ab.c:2518:5: warning: implicit declaration of function
'SSL_CTX_set_max_proto_version' is invalid in C99
[-Wimplicit-function-declaration]    SSL_CTX_set_max_proto_version(ssl_ctx,
max_prot);    ^ab.c:2519:5: warning: implicit declaration of function
'SSL_CTX_set_min_proto_version' is invalid in C99
[-Wimplicit-function-declaration]    SSL_CTX_set_min_proto_version(ssl_ctx,
min_prot);    ^2 warnings generated./usr/local/share/apr/build-1/libtool
--silent --mode=link cc    -O2 -pipe -I/usr/local/include -DLIBICONV_PLUG
-fstack-protector -fno-strict-aliasing -L/usr/local/lib -lssl -lcrypto
-lcrypt -lpthread     -L/usr/local/lib/db5 -L/usr/lib  -L/usr/local/lib
-Wl,-rpath,/usr/local/lib -fstack-protector -o ab  ab.lo
-L/usr/local/lib -R/usr/local/lib -laprutil-1 -ldb-5.3 -lexpat
-L/usr/local/lib -R/usr/local/lib -lapr-1 -lcrypt -lpthread -lmab.o: In
function `main':ab.c:(.text+0xbd9): undefined reference to
`SSL_CTX_set_max_proto_version'ab.c:(.text+0xbea): undefined reference to
`SSL_CTX_set_min_proto_version'cc: error: linker command failed with exit
code 1 (use -v to see invocation)*

Please help me to solve the problem.

Thanks for sharing your knowledge.