Trigger the use of overrideable flags after initialising project

Author: awnawab

Diff for: .github/workflows/build.yml

@@ -178,7 +178,7 @@ jobs:
         cache_suffix: "${{ matrix.build_type }}-${{ env.CACHE_SUFFIX }}"
         recreate_cache: ${{ matrix.caching == false }}
         dependencies: |
-          ecmwf/ecbuild
+          awnawab/ecbuild@feature/purge-compiler-flags
           ecmwf/eccodes
           ecmwf/fckit@refs/tags/0.13.0
           ecmwf-ifs/fiat@refs/tags/1.4.1

Diff for: CMakeLists.txt

@@ -20,7 +20,6 @@ if( NOT ECWAM_PROJECT_NAME )
 endif()
 
 string( TOUPPER ${ECWAM_PROJECT_NAME} PNAME )
-set( ${PNAME}_ECBUILD_COMPILE_FLAGS ${CMAKE_CURRENT_SOURCE_DIR}/cmake/ecwam_init_flags.cmake CACHE FILEPATH "")
 project( ${ECWAM_PROJECT_NAME} LANGUAGES Fortran C CXX )
 
 include( ecwam_macros )

Diff for: cmake/ecwam_compile_flags.cmake

@@ -6,10 +6,12 @@
 # granted to it by virtue of its status as an intergovernmental organisation
 # nor does it submit to any jurisdiction.
 
-# Capture ecbuild defaults and/or flags set by a toolchain
-set( ${PNAME}_Fortran_FLAGS "${${PNAME}_Fortran_FLAGS} ${ECBUILD_Fortran_FLAGS}" )
-set( ${PNAME}_Fortran_FLAGS_BIT "${${PNAME}_Fortran_FLAGS_BIT} ${ECBUILD_Fortran_FLAGS_BIT}" )
-set( ${PNAME}_Fortran_FLAGS_DEBUG "${${PNAME}_Fortran_FLAGS_DEBUG} ${ECBUILD_Fortran_FLAGS_DEBUG}" )
+# Trigger the use of <PNAME>_LANG_FLAGS in ecbuild
+ecbuild_init_overrideable_compiler_flags(
+  LANGUAGES Fortran
+  CAPTURE_BUNDLE_FLAGS
+  COMPILE_FLAGS ${CMAKE_CURRENT_SOURCE_DIR}/cmake/ecwam_compile_flags.cmake
+)
 
 if(CMAKE_Fortran_COMPILER_ID MATCHES "Cray")
   set(autopromote_flags   "-sreal64")

Diff for: cmake/ecwam_init_flags.cmake

@@ -13,8 +13,8 @@ cmake   : CMAKE_LINK_DEPENDS_NO_SHARED=ON
 projects :
 
     - ecbuild : 
-        git     : https://github.com/ecmwf/ecbuild
-        version : master
+        git     : https://github.com/awnawab/ecbuild.git
+        version : feature/purge-compiler-flags
         bundle  : false
 
     - eccodes :