Try to unbreak unix

CMakeLists.txt

@@ -326,7 +326,12 @@ add_subdirectory(src/ConvertInputFormat)
 
 if(BUILD_FORTRAN)
   include(CMakeAddFortranSubdirectory)
-  include(cmake/Fortran.cmake)
+  if (UNIX)
+    # Define a top-level target `fortran_project_options`
+    # It seems that CMakeAddFortranSubdirectory] doesn't know about the target `fortran_project_option` on Windows only.
+    # On Unix it is seen and detected as multiple targets defined with the same name (CMP0002)
+    include(cmake/Fortran.cmake)
+  endif()
   cmake_add_fortran_subdirectory(
     src/ExpandObjects
     PROJECT ExpandObjects

src/AppGPostProcess/CMakeLists.txt

@@ -16,7 +16,11 @@ set(SKIP_BUILD_RPATH TRUE)
 add_executable(AppGPostProcess ${SRC})
 set_target_properties(AppGPostProcess PROPERTIES FOLDER Auxiliary)
 
-include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+if(NOT UNIX)  # Defined as top-level target on Unix only
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+endif()
+get_target_property(F_INTERFACE_COMPILE_FLAGS fortran_project_options INTERFACE_COMPILE_OPTIONS)
+message(DEBUG "AppGPostProcess: F_INTERFACE_COMPILE_FLAGS=${F_INTERFACE_COMPILE_FLAGS}")
 target_link_libraries(AppGPostProcess PRIVATE fortran_project_options)
 
 install(TARGETS AppGPostProcess DESTINATION PostProcess)

src/Basement/CMakeLists.txt

@@ -58,7 +58,11 @@ add_executable(Basement ${SRC})
 target_compile_options(Basement PRIVATE -O1)
 set_target_properties(Basement PROPERTIES FOLDER Auxiliary)
 
-include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+if(NOT UNIX)  # Defined as top-level target on Unix only
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+endif()
+get_target_property(F_INTERFACE_COMPILE_FLAGS fortran_project_options INTERFACE_COMPILE_OPTIONS)
+message(DEBUG "Basement: F_INTERFACE_COMPILE_FLAGS=${F_INTERFACE_COMPILE_FLAGS}")
 target_link_libraries(Basement PRIVATE BasementOptions fortran_project_options)
 
 install(TARGETS Basement DESTINATION PreProcess/GrndTempCalc)

src/CalcSoilSurfTemp/CMakeLists.txt

@@ -16,7 +16,11 @@ set(SKIP_BUILD_RPATH TRUE)
 add_executable(CalcSoilSurfTemp ${SRC})
 set_target_properties(CalcSoilSurfTemp PROPERTIES FOLDER Auxiliary)
 
-include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+if(NOT UNIX)  # Defined as top-level target on Unix only
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+endif()
+get_target_property(F_INTERFACE_COMPILE_FLAGS fortran_project_options INTERFACE_COMPILE_OPTIONS)
+message(DEBUG "CalcSoilSurfTemp: F_INTERFACE_COMPILE_FLAGS=${F_INTERFACE_COMPILE_FLAGS}")
 target_link_libraries(CalcSoilSurfTemp PRIVATE fortran_project_options)
 
 install(TARGETS CalcSoilSurfTemp DESTINATION PreProcess/CalcSoilSurfTemp)

src/ConvertESOMTR/CMakeLists.txt

@@ -16,7 +16,11 @@ set(SKIP_BUILD_RPATH TRUE)
 add_executable(convertESOMTR ${SRC})
 set_target_properties(convertESOMTR PROPERTIES FOLDER Auxiliary)
 
-include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+if(NOT UNIX)  # Defined as top-level target on Unix only
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+endif()
+get_target_property(F_INTERFACE_COMPILE_FLAGS fortran_project_options INTERFACE_COMPILE_OPTIONS)
+message(DEBUG "ConvertESOMTR: F_INTERFACE_COMPILE_FLAGS=${F_INTERFACE_COMPILE_FLAGS}")
 target_link_libraries(convertESOMTR PRIVATE fortran_project_options)
 
 install(TARGETS convertESOMTR DESTINATION "PostProcess/convertESOMTRpgm/")

src/ExpandObjects/CMakeLists.txt

@@ -22,7 +22,11 @@ set(SKIP_BUILD_RPATH TRUE)
 add_executable(ExpandObjects ${SRC})
 target_link_libraries(ExpandObjects PRIVATE fortran_project_options)
 
-include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+if(NOT UNIX)  # Defined as top-level target on Unix only
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+endif()
+get_target_property(F_INTERFACE_COMPILE_FLAGS fortran_project_options INTERFACE_COMPILE_OPTIONS)
+message(DEBUG "ExpandObjects: F_INTERFACE_COMPILE_FLAGS=${F_INTERFACE_COMPILE_FLAGS}")
 set_target_properties(ExpandObjects PROPERTIES FOLDER Auxiliary)
 
 install(TARGETS ExpandObjects DESTINATION "./")

src/HVAC-Diagram/CMakeLists.txt

@@ -16,7 +16,11 @@ set(SKIP_BUILD_RPATH true)
 add_executable(HVAC-Diagram ${SRC})
 set_target_properties(HVAC-Diagram PROPERTIES FOLDER Auxiliary)
 
-include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+if(NOT UNIX)  # Defined as top-level target on Unix only
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+endif()
+get_target_property(F_INTERFACE_COMPILE_FLAGS fortran_project_options INTERFACE_COMPILE_OPTIONS)
+message(DEBUG "HVAC-Diagram: F_INTERFACE_COMPILE_FLAGS=${F_INTERFACE_COMPILE_FLAGS}")
 target_link_libraries(HVAC-Diagram PRIVATE fortran_project_options)
 
 if(NOT CMAKE_Fortran_COMPILER MATCHES "ifort")

src/ParametricPreprocessor/CMakeLists.txt

@@ -16,7 +16,11 @@ set(SKIP_BUILD_RPATH true)
 add_executable(ParametricPreprocessor ${SRC})
 set_target_properties(ParametricPreprocessor PROPERTIES FOLDER Auxiliary)
 
-include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+if(NOT UNIX)  # Defined as top-level target on Unix only
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+endif()
+get_target_property(F_INTERFACE_COMPILE_FLAGS fortran_project_options INTERFACE_COMPILE_OPTIONS)
+message(DEBUG "ParametricPreprocessor: F_INTERFACE_COMPILE_FLAGS=${F_INTERFACE_COMPILE_FLAGS}")
 target_link_libraries(ParametricPreprocessor PRIVATE fortran_project_options)
 
 install(TARGETS ParametricPreprocessor DESTINATION PreProcess/ParametricPreprocessor)

src/ReadVars/CMakeLists.txt

@@ -16,7 +16,11 @@ set(SKIP_BUILD_RPATH true)
 add_executable(ReadVarsESO ${SRC})
 set_target_properties(ReadVarsESO PROPERTIES FOLDER Auxiliary)
 
-include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+if(NOT UNIX)  # Defined as top-level target on Unix only
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+endif()
+get_target_property(F_INTERFACE_COMPILE_FLAGS fortran_project_options INTERFACE_COMPILE_OPTIONS)
+message(DEBUG "ReadVars: F_INTERFACE_COMPILE_FLAGS=${F_INTERFACE_COMPILE_FLAGS}")
 target_link_libraries(ReadVarsESO PRIVATE fortran_project_options)
 
 install(TARGETS ReadVarsESO DESTINATION PostProcess)

src/Slab/CMakeLists.txt

@@ -28,7 +28,11 @@ set(SKIP_BUILD_RPATH true)
 add_executable(Slab ${SRC})
 set_target_properties(Slab PROPERTIES FOLDER Auxiliary)
 
-include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+if(NOT UNIX)  # Defined as top-level target on Unix only
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+endif()
+get_target_property(F_INTERFACE_COMPILE_FLAGS fortran_project_options INTERFACE_COMPILE_OPTIONS)
+message(DEBUG "Slab: F_INTERFACE_COMPILE_FLAGS=${F_INTERFACE_COMPILE_FLAGS}")
 target_link_libraries(Slab PRIVATE fortran_project_options)
 
 install(TARGETS Slab DESTINATION PreProcess/GrndTempCalc)

src/Transition/CMakeLists.txt

@@ -29,7 +29,11 @@ add_library(TransitionLib STATIC ${LIB_SRC})
 target_include_directories(TransitionLib PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
 target_compile_options(TransitionLib PUBLIC -fbounds-check)
 
-include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+if(NOT UNIX)  # Defined as top-level target on Unix only
+  include("${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Fortran.cmake")
+endif()
+get_target_property(F_INTERFACE_COMPILE_FLAGS fortran_project_options INTERFACE_COMPILE_OPTIONS)
+message(DEBUG "Transition: F_INTERFACE_COMPILE_FLAGS=${F_INTERFACE_COMPILE_FLAGS}")
 target_link_libraries(TransitionLib PUBLIC fortran_project_options) # ffree-line-length-none
 
 set(VERSIONS