Bug fix in cmake: allow undefined symbols in RootMinimizer library

CMakeLists.txt

@@ -34,7 +34,6 @@ add_subdirectory(Tests/UnitTests/TestCore)
 #    endif()
 #endif()
 
-
 add_subdirectory(ThirdParty/RootMinimizers)
 add_subdirectory(ThirdParty/RootMathMore)
 add_subdirectory(Fit)

ThirdParty/RootMathMore/CMakeLists.txt

@@ -47,5 +47,8 @@ ADD_CUSTOM_COMMAND(
 set(${library_name}_INCLUDE_DIRS ${include_dirs} PARENT_SCOPE)
 set(${library_name}_LIBRARY ${library_name} PARENT_SCOPE)
 
+#message("XXX ${CMAKE_MODULE_LINKER_FLAGS}")
+#set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-undefined")
+
 # installation
 install (TARGETS ${library_name} DESTINATION lib)

ThirdParty/RootMinimizers/CMakeLists.txt

@@ -4,20 +4,24 @@
 
 set(library_name RootMinimizers)
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMATH_NO_PLUGIN_MANAGER")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMATH_NO_PLUGIN_MANAGER -DHAS_MINUIT2 -DR__HAS_MATHMORE")
 
 # directories to include
 set(include_dirs
     ${CMAKE_CURRENT_SOURCE_DIR}/inc
 )
 include_directories(${include_dirs})
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../RootMathMore/inc)
 
 # files to have in library
 file(GLOB source_files
     "src/Minuit2/*.cxx"
     "src/Math/*.cxx"
+    "src/Fit/*.cxx"
 )
 
+include_directories(${RootMathMore_INCLUDE_DIRS})
+
 # making library
 add_library(
     ${library_name}
@@ -27,10 +31,21 @@ add_library(
 set_Target_properties(${library_name} PROPERTIES PREFIX ${libprefix} SUFFIX ${libsuffix})
 set(${library_name}_LIBRARY_TYPE SHARED)
 
+# copying library into lib directory for functional tests
+ADD_CUSTOM_COMMAND(
+    TARGET ${library_name}
+    POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+    ${libprefix}${library_name}${libsuffix}
+    ${CMAKE_BINARY_DIR}/lib
+)
+
 # exposing library name and list of include directories outside
 set(${library_name}_INCLUDE_DIRS ${include_dirs} PARENT_SCOPE)
 set(${library_name}_LIBRARY ${library_name} PARENT_SCOPE)
 
+set(CMAKE_SHARED_LINKER_FLAGS "")
+
 # -----------------------------------------------
 # installation
 # -----------------------------------------------

cmake/modules/SetUpLinux.cmake

@@ -50,6 +50,7 @@ if(CMAKE_COMPILER_IS_GNUCXX)
   set(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "${CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS}")
 
   set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-undefined")
+#  set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--undefined")
 
   # Select flags.
   set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g")