compile fixes on macOS

Signed-off-by: Christian Berger <[email protected]>

CMakeLists.txt

@@ -19,7 +19,7 @@ project(cluon-relay)
 
 ################################################################################
 # Defining the relevant version of libcluon.
-set(CLUON_COMPLETE cluon-complete-v0.0.140.hpp)
+set(CLUON_COMPLETE cluon-complete-v0.0.146.hpp)
 
 ################################################################################
 # Set the search path for .cmake files.
@@ -30,35 +30,51 @@ set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}" ${CMAKE_MODULE_PATH})
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
-# Build a static binary.
-set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc -static-libstdc++")
+IF(NOT(APPLE))
+  # Build a static binary.
+  set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc -static-libstdc++")
+ENDIF()
+
+if("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
+  set(CMAKE_CXX_FLAGS "-D_DARWIN_C_SOURCE=1 ")
+  set(CMAKE_OSX_SYSROOT /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk)
+endif()
+
 # Add further warning levels.
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} \
-    -D_XOPEN_SOURCE=700 \
-    -D_FORTIFY_SOURCE=2 \
-    -O2 \
-    -fstack-protector \
-    -fomit-frame-pointer \
-    -pipe \
-    -Weffc++ \
-    -Wall -Wextra -Wshadow -Wdeprecated \
-    -Wdiv-by-zero -Wfloat-equal -Wfloat-conversion -Wsign-compare -Wpointer-arith \
-    -Wuninitialized -Wunreachable-code \
-    -Wunused -Wunused-function -Wunused-label -Wunused-parameter -Wunused-but-set-parameter -Wunused-but-set-variable \
-    -Wunused-value -Wunused-variable -Wunused-result \
-    -Wmissing-field-initializers -Wmissing-format-attribute -Wmissing-include-dirs -Wmissing-noreturn")
+  -D_XOPEN_SOURCE=700 \
+  -D_FORTIFY_SOURCE=2 \
+  -O2 \
+  -fstack-protector \
+  -fomit-frame-pointer \
+  -pipe \
+  -Weffc++ \
+  -Wall -Wextra -Wshadow -Wdeprecated \
+  -Wdiv-by-zero -Wfloat-equal -Wfloat-conversion -Wsign-compare -Wpointer-arith \
+  -Wuninitialized -Wunreachable-code \
+  -Wunused -Wunused-function -Wunused-label -Wunused-parameter \
+  -Wunused-value -Wunused-variable -Wunused-result \
+  -Wmissing-field-initializers -Wmissing-format-attribute -Wmissing-include-dirs -Wmissing-noreturn")
 
 # Threads are necessary for linking the resulting binaries as UDPReceiver is running in parallel.
+# assume built-in pthreads on MacOS
 set(THREADS_PREFER_PTHREAD_FLAG ON)
-find_package(Threads REQUIRED)
-set(LIBRARIES Threads::Threads)
+IF(APPLE)
+    set(CMAKE_THREAD_LIBS_INIT "-lpthread")
+    set(CMAKE_HAVE_THREADS_LIBRARY 1)
+    set(CMAKE_USE_WIN32_THREADS_INIT 0)
+    set(CMAKE_USE_PTHREADS_INIT 1)
+ELSE()
+    find_package(Threads REQUIRED)
+    set(LIBRARIES ${LIBRARIES} Threads::Threads)
+ENDIF()
 
 if(UNIX)
-    if(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
-        find_package(LibRT REQUIRED)
-        set(LIBRARIES ${LIBRARIES} ${LIBRT_LIBRARIES})
-        include_directories(SYSTEM ${LIBRT_INCLUDE_DIR})
-    endif()
+  if(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
+    find_package(LibRT REQUIRED)
+    set(LIBRARIES ${LIBRARIES} ${LIBRT_LIBRARIES})
+    include_directories(SYSTEM ${LIBRT_INCLUDE_DIR})
+  endif()
 endif()
 
 ################################################################################