Support for shared Fortran library (#191)

Author: wdeconinck

CMakeLists.txt

@@ -111,12 +111,6 @@ find_package(Threads REQUIRED)
 # Set script directory
 set(SCRIPT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/tools)
 
-# If we build the C Interface we require shared libraries
-if(SERIALBOX_ENABLE_C AND NOT(SERIALBOX_BUILD_SHARED))
-  message(STATUS "SERIALBOX_ENABLE_C requires shared libraries, setting SERIALBOX_BUILD_SHARED=ON")
-  set(SERIALBOX_BUILD_SHARED ON)
-endif()
-
 # If we build the Fortran Interface, we need a Fortran compiler
 if(SERIALBOX_ENABLE_FORTRAN)
   enable_language(Fortran)
@@ -260,7 +254,7 @@ if(SERIALBOX_ENABLE_EXPERIMENTAL_FILESYSTEM)
     if( STD_FILESYSTEM_LIB_CHECK )
       message(STATUS "Using std::experimental::filesystem (no dependency on compiled boost libs)")
       add_library(SerialboxFilesytemTarget INTERFACE)
-      target_link_libraries(SerialboxFilesytemTarget INTERFACE stdc++fs)
+      target_link_libraries(SerialboxFilesytemTarget INTERFACE ${STD_FILESYSTEM_LIB_CHECK})
       set(SERIALBOX_FILESYSTEM_LIBRARY_STRING "SERIALBOX_USE_STD_EXPERIMENTAL_FILESYSTEM")
       set(_use_boost_filesystem OFF)
     else()

cmake/SerialboxConfig.cmake.in

@@ -84,17 +84,23 @@ endif(SERIALBOX_HAS_C)
 if(SERIALBOX_HAS_FORTRAN)
   get_property(_static_lib TARGET Serialbox::SerialboxFortranStatic PROPERTY LOCATION)
   message(STATUS "  Static serialbox FORTRAN: ${_static_lib}")
+
+  if(SERIALBOX_HAS_SHARED_LIBRARY)
+    get_property(_shared_lib TARGET Serialbox::SerialboxFortranShared PROPERTY LOCATION)
+    message(STATUS "  Shared serialbox FORTRAN: ${_shared_lib}")
+  endif()
+
 endif(SERIALBOX_HAS_FORTRAN)
 
 #===---------------------------------------------------------------------------------------------===
 #   Find external libraries
 #====--------------------------------------------------------------------------------------------===
 if(NOT(DEFINED SERIALBOX_NO_EXTERNAL_LIBS))
-
   include(CMakeFindDependencyMacro)
   #
   # Pthreads
   #
+  message( STATUS "Serialbox: find_depencency( Threads )" )
   find_dependency(Threads)
 
   #
@@ -111,7 +117,8 @@ if(NOT(DEFINED SERIALBOX_NO_EXTERNAL_LIBS))
   set(BOOST_INCLUDEDIR "${SERIALBOX_BOOST_INCLUDE_DIRS}")
   set(Boost_NO_SYSTEM_PATHS "ON") # Force boost to search locations specified above
 
-  find_package(Boost 
+  message( STATUS "Serialbox: find_depencency( Boost ${SERIALBOX_BOOST_VERSION} EXACT COMPONENTS ${SERIALBOX_REQUIRED_BOOST_COMPONENTS}}")
+  find_dependency(Boost 
                ${SERIALBOX_BOOST_VERSION} EXACT COMPONENTS ${SERIALBOX_REQUIRED_BOOST_COMPONENTS})
   if(Boost_FOUND)
     list(APPEND SERIALBOX_INCLUDE_DIRS ${Boost_INCLUDE_DIRS})

src/serialbox-fortran/CMakeLists.txt

@@ -44,6 +44,22 @@ if(SERIALBOX_ENABLE_FORTRAN)
     ARCHIVE DESTINATION lib
     )
 
+  if(BUILD_SHARED_LIBS)
+    set_target_properties( SerialboxFortranSerializeObjects PROPERTIES POSITION_INDEPENDENT_CODE ON )
+    set_target_properties( SerialboxFortranObjects PROPERTIES POSITION_INDEPENDENT_CODE ON )
+    add_library(SerialboxFortranShared SHARED $<TARGET_OBJECTS:SerialboxFortranSerializeObjects> $<TARGET_OBJECTS:SerialboxFortranObjects>)
+    target_link_libraries(SerialboxFortranShared PUBLIC SerialboxFortranObjects)
+    target_link_libraries(SerialboxFortranShared PUBLIC SerialboxFortranSerializeObjects)
+    target_link_libraries(SerialboxFortranShared PUBLIC SerialboxCShared)
+    set_target_properties(SerialboxFortranShared PROPERTIES VERSION ${Serialbox_VERSION_STRING})
+    
+    install(TARGETS SerialboxFortranShared
+      EXPORT SerialboxTargets
+      LIBRARY DESTINATION lib
+      ARCHIVE DESTINATION lib
+      )
+  endif()
+
   # Install mod files
   foreach(source ${SOURCES_FORTRAN} ${SOURCES_FORTRAN_SERIALIZE})
     get_filename_component(module_name ${source} NAME_WE)