russell@freebsd11rc2:~/git% sudo luarocks install --server=http://luarocks.org/dev http
Installing http://luarocks.org/dev/http-scm-0.rockspec
Missing dependencies for http scm-0:
   luaossl >= 20150727 (not installed)
   basexx >= 0.2.0 (not installed)
   lpeg_patterns >= 0.2 (not installed)
   fifo (not installed)

http scm-0 depends on luaossl >= 20150727 (not installed)
Installing https://luarocks.org/luaossl-20151221-0.src.rock
cc -O2 -fPIC -I/usr/local/include -c src/openssl.c -o src/openssl.o -D_REENTRANT -D_THREAD_SAFE -D_GNU_SOURCE -DLUA_COMPAT_APIINTCASTS -I/usr/local/include -I/usr/local/include
cc -shared -o _openssl.so -L/usr/local/lib src/openssl.o -L/usr/local/lib -L/usr/local/lib -lssl -lcrypto -lpthread -ldl -lm
/usr/bin/ld: cannot find -ldl
cc: error: linker command failed with exit code 1 (use -v to see invocation)

Error: Failed installing dependency: https://luarocks.org/luaossl-20151221-0.src.rock - Build error: Failed compiling module _openssl.so