Closes #419 Moves warning flag to source CMakeLists

Signed-off-by: Martin Melik-Merkumians <melik-merkumians@acin.tuwien.ac.at>

source/CMakeLists.txt

@@ -154,7 +154,7 @@ endif( OpENer_TESTS )
 if (OpENer_PLATFORM STREQUAL "WIN32")
   set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -W4" )
 else ()
-  set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall" )
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wconversion")
 endif ()
 
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source/buildsupport/POSIX/OpENer_PLATFORM_INCLUDES.cmake

@@ -1,6 +1,6 @@
 macro(opener_platform_spec)
   include_directories(${PORTS_SRC_DIR}/${OpENer_PLATFORM} ${PORTS_SRC_DIR}/${OpENer_PLATFORM}/sample_application)
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -Werror=implicit-function-declaration -Wconversion -fcommon")
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -Werror=implicit-function-declaration -fcommon")
   if(NOT CMAKE_INSTALL_LIBDIR)
     set( CMAKE_INSTALL_LIBDIR "lib")
   endif()