add DEBUG option for make

By default, binary will be built without stripping debug symbols

Makefile.homebrew

@@ -3,8 +3,9 @@ BREWROOT = /usr/local
 BOOSTROOT = ${BREWROOT}/opt/boost
 SSLROOT = ${BREWROOT}/opt/libressl
 UPNPROOT = ${BREWROOT}/opt/miniupnpc
-CXXFLAGS = -g -Wall -std=c++11 -DMAC_OSX -Wno-overloaded-virtual
+CXXFLAGS = ${CXX_DEBUG} -Wall -std=c++11 -DMAC_OSX -Wno-overloaded-virtual
 INCFLAGS = -I${SSLROOT}/include -I${BOOSTROOT}/include
+LDFLAGS = ${LD_DEBUG}
 
 ifndef TRAVIS
 	CXX = clang++
@@ -13,7 +14,7 @@ endif
 ifeq ($(USE_STATIC),yes)
 	LDLIBS = -lz ${SSLROOT}/lib/libcrypto.a ${SSLROOT}/lib/libssl.a ${BOOSTROOT}/lib/libboost_system.a ${BOOSTROOT}/lib/libboost_date_time.a ${BOOSTROOT}/lib/libboost_filesystem.a ${BOOSTROOT}/lib/libboost_program_options.a -lpthread
 else
-	LDFLAGS = -L${SSLROOT}/lib -L${BOOSTROOT}/lib
+	LDFLAGS += -L${SSLROOT}/lib -L${BOOSTROOT}/lib
 	LDLIBS = -lz -lcrypto -lssl -lboost_system -lboost_date_time -lboost_filesystem -lboost_program_options -lpthread
 endif
 
@@ -34,7 +35,7 @@ endif
 # Seems like all recent Mac's have AES-NI, after firmware upgrade 2.2
 # Found no good way to detect it from command line. TODO: Might be some osx sysinfo magic
 ifeq ($(USE_AESNI),yes)
-	CXXFLAGS += -maes
+	CXXFLAGS += -maes -DAESNI
 endif
 ifeq ($(USE_AVX),1)
 	CXXFLAGS += -mavx