Install on ubuntu 20.04

Hi,

I'm struggling to install SimpleAmqpClient on ubuntu 20.04.

Im currently just trying to install rabbitmq-c and SimpleAmqpClient by following the travis setup.

When I follow the steps in travis.yaml I'm stuck at

cmake -GNinja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="${FLAGS}" -DCMAKE_INSTALL_PREFIX=../_install -DENABLE_TESTING=ON -DRabbitmqc_DIR=${RABBITMQ_C_DIR} ..

Im a little surprised that this even works in Travis because RABBITMQ_C_DIR is not defined. Instead RABBITMQC_DIR is defined (extract underscore before C)? Is that a typo?

I tried to change the -DRabbitmqc_DIR=${RABBITMQ_C_DIR} to -DRabbitmqc_DIR=${RABBITMQC_DIR} . With that change I do pick up the rabbitmq-c library's include path but not the the lib path.

The issue for me seems to be that the hint below is pointing to ${Rabbitmqc_DIR}/lib:

SimpleAmqpClient/Modules/FindRabbitmqc.cmake

Lines 11 to 14 in e474a06

    
           FIND_LIBRARY(Rabbitmqc_LIBRARY 
        
           	NAMES rabbitmq 
        
               HINTS ${Rabbitmqc_DIR}/lib 
        
           	)

if I change the hint to ${Rabbitmqc_DIR}/lib/x86_64-linux-gnu I do find the include path and the library path.

I have been away from cmake for a while so its proably something obvious that I'm missing.

	FIND_LIBRARY(Rabbitmqc_LIBRARY
	NAMES rabbitmq
	HINTS ${Rabbitmqc_DIR}/lib
	)