Fixes undefined reference error on MSYS2 and Ubuntu

src/CMakeLists.txt

@@ -21,6 +21,7 @@ set(global_includes
    ${ASPELL_INCLUDE_DIR}
    ../libclangmm/src
    ../tiny-process-library
+   .
 )
 
 set(global_libraries
@@ -87,13 +88,13 @@ endif()
 
 include_directories(${global_includes})
 
-add_library(project_shared ${project_shared_files})
+add_library(project_shared OBJECT ${project_shared_files})
 
 if(("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang") AND (NOT $ENV{distribution} STREQUAL ""))
   add_library(${project_name} OBJECT ${project_files})
 else()
-  add_executable(${project_name} ${project_files})
-  target_link_libraries(${project_name} ${global_libraries} project_shared)
+  add_executable(${project_name} ${project_files} $<TARGET_OBJECTS:project_shared>)
+  target_link_libraries(${project_name} ${global_libraries})
   install(TARGETS ${project_name}
     RUNTIME DESTINATION bin
   )

tests/CMakeLists.txt

@@ -29,18 +29,21 @@ set(stub_files
     stubs/tooltips.cc
 )
 
-add_library(stubs ${stub_files})
+add_library(stubs OBJECT ${stub_files})
 
 include_directories(${global_includes})
 
-add_executable(cmake_build_test cmake_build_test.cc)
-target_link_libraries(cmake_build_test ${global_libraries} project_shared stubs)
+add_executable(cmake_build_test cmake_build_test.cc
+               $<TARGET_OBJECTS:project_shared> $<TARGET_OBJECTS:stubs>)
+target_link_libraries(cmake_build_test ${global_libraries})
 add_test(cmake_build_test cmake_build_test)
 
-add_executable(source_test source_test.cc)
-target_link_libraries(source_test ${global_libraries} project_shared stubs)
+add_executable(source_test source_test.cc
+               $<TARGET_OBJECTS:project_shared> $<TARGET_OBJECTS:stubs>)
+target_link_libraries(source_test ${global_libraries})
 add_test(source_test source_test)
 
-add_executable(source_clang_test source_clang_test.cc)
-target_link_libraries(source_clang_test ${global_libraries} project_shared stubs)
+add_executable(source_clang_test source_clang_test.cc
+               $<TARGET_OBJECTS:project_shared> $<TARGET_OBJECTS:stubs>)
+target_link_libraries(source_clang_test ${global_libraries})
 add_test(source_clang_test source_clang_test)

tests/clang_project/CMakeLists.txt

@@ -1 +1 @@
-set(project_name hello)
+project(hello)