WIP: Initial fortran module meant to expose functionalities to the c API

CMakeLists.txt

@@ -99,12 +99,12 @@ ecbuild_add_option( FEATURE HEALPIX_EXAMPLES
 
 ###  Definitions used by the output manager
 ecbuild_add_option( FEATURE OUTPUT_MANAGER
-	                DEFAULT ON
+	                  DEFAULT ON
                     DESCRIPTION "Build the output manager" )
 
 ecbuild_add_option( FEATURE OUTPUT_MANAGER_ENCODER_REPORT
                     CONDITION HAVE_OUTPUT_MANAGER
-		            DEFAULT OFF
+		                DEFAULT OFF
                     DESCRIPTION "Enable generation of the encoding report" )
 
 ecbuild_add_option( FEATURE OUTPUT_MANAGER_TOOL
@@ -114,7 +114,7 @@ ecbuild_add_option( FEATURE OUTPUT_MANAGER_TOOL
 
 ### export package info
 set( MULTIO_CONFIG_DIR     share/multio/config )
-set( MULTIOM_CONFIG_DIR     share/multiom )
+set( MULTIOM_CONFIG_DIR    share/multiom )
 set( MULTIO_INCLUDE_DIRS   ${CMAKE_CURRENT_SOURCE_DIR}/src ${CMAKE_CURRENT_BINARY_DIR}/src )
 set( MULTIO_LIBRARIES      multio )
 

src/multiom/CMakeLists.txt

@@ -101,6 +101,7 @@ set( DOFFSET "     ")
 #
 # + ADD SUB-DIRECTORIES
 # =====================
+add_subdirectory( api )
 add_subdirectory( common )
 add_subdirectory( configuration )
 add_subdirectory( containers )
@@ -123,6 +124,7 @@ add_subdirectory( tools )
 # + ADD LOCAL FILES
 # =================
 list( APPEND output_manager_src
+  ${MULTIOM_API_SOURCES}
   ${MULTIOM_COMMON_SOURCES}
   ${MULTIOM_CONFIGURATION_SOURCES}
   ${MULTIOM_CONTAINERS_SOURCES}

src/multiom/api/CMakeLists.txt

@@ -0,0 +1,23 @@
+set(MULTIOM_API_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+
+# Enter in the module
+message("${OFFSET} + API sources: ${MULTIOM_API_DIR}")
+
+# Recursive print
+set(OFFSET ${OFFSET}${DOFFSET})
+
+# Collect source files in module2
+set( MULTIOM_API_SOURCES
+  ${MULTIOM_API_DIR}/api_wrapper_mod.F90
+  CACHE INTERNAL "List of all sources in API directory"
+)
+
+# Optionally, message what has been appended for debugging
+foreach(source_file IN LISTS MULTIOM_API_SOURCES)
+
+    # Extract the filename (without the directory)
+    get_filename_component(filename ${source_file} NAME)
+
+    # Print the filename
+    message("${OFFSET}    - ${filename}")
+endforeach()