fix Linux build dependencies

Makefile

@@ -17,7 +17,6 @@ MONERO_LIBS = \
   ${MONERO_BUILD_ROOT}/src/ringct/libringct_basic.a \
   ${MONERO_BUILD_ROOT}/src/device/libdevice.a \
   ${MONERO_BUILD_ROOT}/src/blockchain_db/libblockchain_db.a \
-  ${MONERO_BUILD_ROOT}/external/unbound/libunbound.a \
   ${MONERO_BUILD_ROOT}/contrib/epee/src/libepee.a \
   ${MONERO_BUILD_ROOT}/external/easylogging++/libeasylogging.a
 
@@ -59,7 +58,7 @@ LIBS := lmdb pthread microhttpd
 ifeq ($(OS), Darwin)
 LIBS += c++ boost_system-mt boost_date_time-mt boost_chrono-mt boost_filesystem-mt boost_thread-mt
 else
-LIBS += boost_system boost_date_time boost_chrono boost_filesystem boost_thread uuid
+LIBS += dl boost_system boost_date_time boost_chrono boost_filesystem boost_thread uuid
 endif
 
 PKG_LIBS := $(shell pkg-config \
@@ -67,6 +66,7 @@ PKG_LIBS := $(shell pkg-config \
     json-c \
     openssl \
     libsodium \
+    libunbound \
     --libs)
 
 STATIC_LIBS = 
@@ -79,6 +79,7 @@ PKG_INC := $(shell pkg-config \
     json-c \
     openssl \
     libsodium \
+    libunbound \
     --cflags)
 
 LIBPATH := /opt/local/lib/ /usr/local/lib

README.md

@@ -43,13 +43,12 @@ export MONERO_BUILD_ROOT=$MONERO_ROOT/build/<system>/<branch>/<release|debug>
 
 Replacing the values appropriately.
 
-Beyond the Monero dependencies, the following libraries are also required to
-build the pool:
+Beyond the Monero dependencies, the following extra libraries are also required
+to build the pool:
 
 - liblmdb
 - libevent
 - json-c
-- openssl
 - libmicrohttpd
 - uuid
 
@@ -57,8 +56,7 @@ As an example, on Ubuntu, these dependencies can be installed with the following
 command:
 
 ```
-sudo apt-get install libjson-c-dev uuid-dev libevent-dev libmicrohttpd-dev \
-  liblmdb-dev openssl
+sudo apt-get install liblmdb-dev libevent-dev libjson-c-dev libmicrohttpd-dev uuid-dev
 ```
 ### Compile