CMake polishing

CMakeLists.txt

@@ -4,10 +4,15 @@ project(googerteller VERSION 1.0
                   DESCRIPTION "Audible feedback on Google communications"
                   LANGUAGES CXX)
 
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
 
-set(CMAKE_CXX_STANDARD 17 CACHE STRING "The C++ standard to use")
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_CXX_EXTENSIONS ON)
+message("-- Looking for Portable C Audio Library")
+find_library(PCAUDIO_LIB NAMES pcaudio libpcaudio)
+if (NOT PCAUDIO_LIB)
+    message(FATAL_ERROR "Could not find PCAUDIO_LIB using the following names: pcaudio, libpcaudio")
+endif()
+message("-- Looking for Portable C Audio Library - found")
 
 #add_library(support STATIC ext/powerblog/h2o-pp.cc 
 #	ext/powerblog/ext/simplesocket/swrappers.cc 
@@ -21,7 +26,8 @@ set(CMAKE_CXX_EXTENSIONS ON)
 #target_link_libraries(support PUBLIC -lh2o-evloop -lssl -lcrypto Threads::Threads)
 
 add_executable(teller teller.cc )
-target_link_libraries(teller -lpcaudio -lpthread)
+target_link_libraries(teller PRIVATE ${PCAUDIO_LIB} Threads::Threads)
+target_compile_features(teller PRIVATE cxx_std_17)
 
 #enable_testing()
 #add_test(testname testrunner)