added eccodes to CMakeLists.txt, removed project definitions

CMakeLists.txt

 cmake_minimum_required( VERSION 3.30 FATAL_ERROR )
 
+message("Entering libcdi")
 project(libcdi VERSION 2.5.1 LANGUAGES C )
 set(CMAKE_C_STANDARD 11)
 
-add_compile_definitions(CDI=1)
-add_compile_definitions(PACKAGE_NAME="libcdi")
-add_compile_definitions(VERSION="${CMAKE_PROJECT_VERSION}")
-
+include(CTest)
 include(CheckIncludeFile)
 
+find_package(eccodes)
+if (${eccodes_FOUND})
+  add_compile_definitions(HAVE_ECCODES=${eccodes_FOUND})
+  message(STATUS "added compile definition HAVE_ECCODES=${eccodes_FOUND}")
+  add_compile_definitions(HAVE_LIBGRIB=${eccodes_FOUND})
+  message(STATUS "added compile definition HAVE_LIBGRIB=${eccodes_FOUND}")
+  add_compile_definitions(HAVE_LIBGRIB_API=${eccodes_FOUND})
+  message(STATUS "added compile definition HAVE_LIBGRIB_API=${eccodes_FOUND}")
+else()
+  message(WARNING "netcdf not found, compiling without netcdf")
+endif ()
 #NetCDF
 find_package(netCDF COMPONENTS C REQUIRED)
 check_include_file("netcdf.h" ${netcdf_flag} C)
@@ -19,6 +28,9 @@ else()
   message(WARNING "netcdf not found, compiling without netcdf")
 endif ()
 
+message("looking for config.h in: ${PROJECT_BINARY_DIR}/src")
+include_directories( "${PROJECT_BINARY_DIR}/src/config.h")
+
 
 #adding subdirectories
 ## lib and general files
@@ -26,3 +38,6 @@ add_subdirectory(src)
 ## cdi executable
 add_subdirectory(app)
 
+#tests
+add_subdirectory( tests )
+