MakeFile add library - c++

Question

I've installed the library via vcpkg and it gave me the next rows to add to cmake:
find_package(Libevent CONFIG REQUIRED)
target_link_libraries(main PRIVATE libevent::core libevent::extra)
But my project uses Makefile instead of cmake. How can I add the library to project?
Makefile:
# Remove NDEBUG define to trigger asserts
CPPFLAGS+=-O2 -std=gnu++11 -I. -DNDEBUG -Wall -Wno-sign-compare -Wno-unused -g -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DOPENSSL
LDFLAGS+=-levent -lstdc++ -lssl -lcrypto
uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
ifeq ($(uname_S),FreeBSD)
CXX=clang++
LIBEVENT_HOME=/usr/local
CPPFLAGS+=-I${LIBEVENT_HOME}/include
LDFLAGS+=-L${LIBEVENT_HOME}/lib
else
CXX?=g++
endif
all: swift-dynamic
swift: swift.o sha1.o compat.o sendrecv.o send_control.o hashtree.o bin.o binmap.o channel.o transfer.o httpgw.o statsgw.o cmdgw.o avgspeed.o avail.o storage.o zerostate.o zerohashtree.o livehashtree.o live.o api.o content.o swarmmanager.o address.o livesig.o exttrack.o
swift-static: swift
${CXX} ${CPPFLAGS} -o swift *.o ${LDFLAGS} -static -lrt
strip swift
touch swift-static
swift-dynamic: swift
${CXX} ${CPPFLAGS} -o swift *.o ${LDFLAGS}
touch swift-dynamic
clean:
rm -f *.o swift swift-static swift-dynamic 2>/dev/null
.PHONY: all clean swift swift-static swift-dynamic