# Copyright (C) 1995-2019, Rene Brun and Fons Rademakers.
# All rights reserved.
#
# For the licensing terms see $ROOTSYS/LICENSE.
# For the list of contributors see $ROOTSYS/README/CREDITS.


set(FIT_HEADERS
    ParameterSettings.h
    )

set(MATH_HEADERS
    Error.h
    FitMethodFunction.h
    Functor.h
    GenAlgoOptions.h
    IFunction.h
    IFunctionfwd.h
    IOptions.h
    Minimizer.h
    MinimizerOptions.h
    Util.h
    WrappedFunction.h
    WrappedParamFunction.h
    )

set(MATH_SOURCES
    GenAlgoOptions.cxx
    IOptions.cxx
    Minimizer.cxx
    MinimizerOptions.cxx
    ParameterSettings.cxx
    )

copy_standalone(SOURCE ../../../mathcore/inc/Fit DESTINATION ../../inc/Fit
    OUTPUT FIT_HEADERS
    FILES ${FIT_HEADERS})
copy_standalone(SOURCE ../../../mathcore/inc/Math DESTINATION ../../inc/Math
    OUTPUT  MATH_HEADERS
    FILES ${MATH_HEADERS})
copy_standalone(SOURCE ../../../mathcore/src DESTINATION .
    OUTPUT MATH_SOURCES
    FILES ${MATH_SOURCES})

# Adding the headers helps IDEs show the correct headers on targets
add_library(Minuit2Math
    ${MATH_SOURCES}
    ${MATH_HEADERS}
    ${FIT_HEADERS}
    )

# Add alias for direct inclusion
add_library(Minuit2::Math ALIAS Minuit2Math)

# Build and install directories are different, using CMake Generator expression
target_include_directories(
    Minuit2Math
    PUBLIC
    $<BUILD_INTERFACE:${Minuit2_SOURCE_DIR}/inc>
    $<INSTALL_INTERFACE:include/Minuit2>
    )

# We need to add the ROOT mathcore directories if build inside of ROOT without standalone)
if(minuit2_inroot AND NOT minuit2_standalone)
    target_include_directories(
        Minuit2Math
        PUBLIC
        $<BUILD_INTERFACE:${Minuit2_SOURCE_DIR}/../mathcore/inc>
        )
endif()

target_compile_definitions(
    Minuit2Math
    PRIVATE
    MATH_NO_PLUGIN_MANAGER
    )

target_compile_definitions(
    Minuit2Math
    PUBLIC
    ROOT_Math_VecTypes
    MATHCORE_STANDALONE
    )

target_link_libraries(Minuit2Math PUBLIC Minuit2Common)

target_compile_features(Minuit2Math PUBLIC cxx_auto_type cxx_static_assert)
set_target_properties(Minuit2Math PROPERTIES CXX_EXTENSIONS OFF)

install(TARGETS Minuit2Math
        EXPORT Minuit2Targets
        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
        )

install(FILES ${FIT_HEADERS} DESTINATION include/Minuit2/Fit)
install(FILES ${MATH_HEADERS} DESTINATION include/Minuit2/Math)