From b326f5a7fed3bc354ef6dde7163c9a7f61d41468 Mon Sep 17 00:00:00 2001
From: Ahmad Nawab <ahmad.nawab@ecmwf.int>
Date: Tue, 9 Jan 2024 09:35:47 +0000
Subject: [PATCH] IFS-SOURCE-ECWAM-SYNC: building with ecflow_light now a
 configurable option

---
 CMakeLists.txt           | 12 ++++--------
 src/ecwam/CMakeLists.txt | 10 ++++++++--
 src/ecwam/wavemdl.F90    |  6 +++---
 3 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c86b1d5b..85c390a1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,6 +55,10 @@ ecbuild_add_option( FEATURE ECWAM_LAUNCH
                     DEFAULT ON
                     DESCRIPTION "Use share/ecwam/scripts/ecwam-launch script to run ecwam tests" )
 
+ecbuild_add_option( FEATURE ECFLOW
+                    DESCRIPTION "ecflow meter updates"
+                    REQUIRED_PACKAGES "ecflow_light")
+
 if( HAVE_ECWAM_LAUNCH )
   # Overwrite meaning of mpiexec
   set( ECWAM_LAUNCH ${CMAKE_CURRENT_SOURCE_DIR}/share/ecwam/scripts/ecwam-launch )
@@ -90,14 +94,6 @@ if( HAVE_OMP )
   set( OpenMP_Fortran_LIBRARIES OpenMP::OpenMP_Fortran )
 endif()
 
-### Check if this is a standalone ecWAM build
-if(PROJECT_IS_TOP_LEVEL OR (PARENT_PROJECT_NAME STREQUAL "ecwam-bundle"))
-  set(ECWAM_STANDALONE 1)
-else()
-  set(ECWAM_STANDALONE 0)
-  ecbuild_find_package( ecflow_light REQUIRED )
-endif()
-
 ### Sources
 
 include(ecwam_compile_flags)
diff --git a/src/ecwam/CMakeLists.txt b/src/ecwam/CMakeLists.txt
index 5c179bf0..598ead59 100644
--- a/src/ecwam/CMakeLists.txt
+++ b/src/ecwam/CMakeLists.txt
@@ -420,19 +420,25 @@ else()
   unset( ${PNAME}_OCEANMODEL_INCLUDE_DIRS )
 endif()
 
+if( HAVE_ECFLOW )
+  list(APPEND ECWAM_PRIVATE_DEFINITIONS WAM_HAVE_ECFLOW)
+endif()
+
 ecbuild_add_library(
     TARGET           ${ecwam}
     SOURCES          ${ecwam_srcs}
-    PUBLIC_LIBS      fiat parkind_${prec} $<$<NOT:${ECWAM_STANDALONE}>:ecflow_lightf> ${ecwam}_intfb
+    PUBLIC_LIBS      fiat parkind_${prec} ${ecwam}_intfb
                      ${MPI_Fortran_LIBRARIES}
                      ${${PNAME}_OCEANMODEL_LIBRARIES}
     PRIVATE_LIBS     eccodes_f90
                      ${MULTIO_LIBRARIES}
                      ${OpenMP_Fortran_LIBRARIES}
                      field_api_${prec}
+                     $<${HAVE_ECFLOW}:ecflow_lightf>
     PUBLIC_INCLUDES  $<INSTALL_INTERFACE:include>
     PRIVATE_INCLUDES ${${PNAME}_OCEANMODEL_INCLUDE_DIRS}
-    PUBLIC_DEFINITIONS ${ECWAM_DEFINITIONS} $<${ECWAM_STANDALONE}:_ECWAM_STANDALONE>
+    PRIVATE_DEFINITIONS ${ECWAM_PRIVATE_DEFINITIONS}
+    PUBLIC_DEFINITIONS ${ECWAM_DEFINITIONS}
 )
 
 ecwam_target_fortran_module_directory(
diff --git a/src/ecwam/wavemdl.F90 b/src/ecwam/wavemdl.F90
index a4ac99da..7a4874fe 100644
--- a/src/ecwam/wavemdl.F90
+++ b/src/ecwam/wavemdl.F90
@@ -147,7 +147,7 @@ SUBROUTINE WAVEMDL (CBEGDAT, PSTEP, KSTOP, KSTPW,                 &
       USE YOWASSI  , ONLY : WAMASSI
       USE YOWGRIB  , ONLY : IGRIB_GET_VALUE
       USE MPL_MODULE, ONLY : MPL_BARRIER, MPL_GATHERV
-#ifndef _ECWAM_STANDALONE
+#ifdef WAM_HAVE_ECFLOW
       USE ECFLOW_LIGHT, ONLY : ECFLOW_LIGHT_UPDATE_METER
 #endif
 ! ---------------------------------------------------------------------
@@ -288,7 +288,7 @@ SUBROUTINE WAVEMDL (CBEGDAT, PSTEP, KSTOP, KSTPW,                 &
       LOGICAL :: LLINIT
       LOGICAL :: LLINIT_FIELDG
 
-#ifndef _ECWAM_STANDALONE
+#ifdef WAM_HAVE_ECFLOW
       CHARACTER(LEN = 64) :: METER_NAME
       INTEGER(KIND=JWIM)  :: METER_VALUE
       INTEGER(KIND=JWIM)  :: ERROR
@@ -670,7 +670,7 @@ SUBROUTINE WAVEMDL (CBEGDAT, PSTEP, KSTOP, KSTPW,                 &
         CALL DIFDATE (CDATEF, CDTPRO, IFCST)
         IFCSTEP_HOUR=IFCST/3600
         IF (IRANK == 1) THEN
-#ifdef _ECWAM_STANDALONE
+#ifndef WAM_HAVE_ECFLOW
           WRITE(CLSETEV,' (A25,'' step '',I8,''&'') ') CMETER,IFCSTEP_HOUR
           CLSMSNAME="                                             "
           CLECFNAME="                                             "