Small fixes after PR review

CMakeLists.txt

@@ -6,7 +6,7 @@
 # granted to it by virtue of its status as an intergovernmental organisation
 # nor does it submit to any jurisdiction.
 
-cmake_minimum_required( VERSION 3.12 FATAL_ERROR )
+cmake_minimum_required( VERSION 3.24 FATAL_ERROR )
 find_package( ecbuild 3.4 REQUIRED HINTS ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/../ecbuild )
 
 if( NOT ECWAM_PROJECT_NAME )

README.md

@@ -65,7 +65,7 @@ Environment variables
     $ export MPI_HOME=<path-to-MPI>
     $ export fiat_ROOT=<path-to-fiat>
     $ export eccodes_ROOT=<path-to-eccodes>
-    $ export field_api_ROOT=<path-to-field_api>
+    $ export field_api_ROOT=<path-to-field_api> (if not set, field_api will be cloned)
     $ export CC=<path-to-C-compiler>
     $ export FC=<path-to-Fortran-compiler>
     $ export CXX=<path-to-C++-compiler>

cmake/ecwam_fetchcontent_field_api.cmake

@@ -20,7 +20,7 @@ if(field_api_FOUND)
    string(COMPARE EQUAL ${result_var} "-1" clone_field_api)
 endif()
 
-if( ${clone_field_api} )
+if( clone_field_api )
    include(FetchContent)
    FetchContent_Declare(
       field_api
@@ -30,5 +30,6 @@ if( ${clone_field_api} )
    )
 
    set(FIELD_API_ENABLE_TESTS OFF)
+   set(FIELD_API_ENABLE_ACC OFF)
    FetchContent_MakeAvailable(field_api)
 endif()

package/bundle/bundle.yml

@@ -30,7 +30,7 @@ projects :
 
 options :
 
-    - single-precision :
+    - with-single-precision :
         help  : Enable single precision build of the dwarf
         cmake : ENABLE_SINGLE_PRECISION=ON