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35 # Note that lmfit does not have a stable API, so GROMACS only supports
36 # the same version that it bundles.
37 set(GMX_LMFIT_REQUIRED_VERSION "7.0")
39 include(gmxOptionUtilities)
41 # Make a three-state enumeration, defaulting to
42 gmx_option_multichoice(GMX_USE_LMFIT
43 "How to handle the lmfit dependency of GROMACS"
45 INTERNAL EXTERNAL NONE)
46 mark_as_advanced(GMX_USE_LMFIT)
48 # Make a fully functional lmfit library target that libgromacs can
49 # depend on regardless of how the user directed lmfit support and/or
51 function(gmx_manage_lmfit)
52 if(GMX_USE_LMFIT STREQUAL "INTERNAL")
53 # Create an object library for the lmfit sources
54 set(BUNDLED_LMFIT_DIR "${CMAKE_SOURCE_DIR}/src/external/lmfit")
55 file(GLOB LMFIT_SOURCES ${BUNDLED_LMFIT_DIR}/*.cpp)
56 add_library(lmfit_objlib OBJECT ${LMFIT_SOURCES})
57 # Ensure that the objects can be used in both STATIC and SHARED
59 set_target_properties(lmfit_objlib PROPERTIES POSITION_INDEPENDENT_CODE ON)
61 # Create an INTERFACE (ie. fake) library for lmfit, that
62 # libgromacs can depend on. The generator expression for the
63 # target_sources expands to nothing when cmake builds the
64 # export for libgromacs, so that it understands that we don't
65 # install anything for this library - using plain source files
66 # would not convey the right information.
67 add_library(lmfit INTERFACE)
68 target_sources(lmfit INTERFACE $<TARGET_OBJECTS:lmfit_objlib>)
69 target_include_directories(lmfit SYSTEM INTERFACE $<BUILD_INTERFACE:${BUNDLED_LMFIT_DIR}>)
70 # Add the lmfit interface library to the libgromacs Export name, even though
71 # we will not be installing any content.
72 install(TARGETS lmfit EXPORT libgromacs)
74 set(HAVE_LMFIT 1 CACHE INTERNAL "Is lmfit found?")
75 elseif(GMX_USE_LMFIT STREQUAL "EXTERNAL")
76 # Find an external lmfit library.
77 find_package(Lmfit ${GMX_LMFIT_REQUIRED_VERSION})
78 if(NOT LMFIT_FOUND OR LMFIT_VERSION VERSION_LESS GMX_LMFIT_REQUIRED_VERSION)
79 message(FATAL_ERROR "External lmfit >= ${GMX_LMFIT_REQUIRED_VERSION} could not be found, please adjust your pkg-config path to include the lmfit.pc file")
82 set(HAVE_LMFIT 1 CACHE INTERNAL "Is lmfit found?")
84 # Create a dummy link target so the calling code doesn't need to know
85 # whether lmfit support is being compiled.
86 add_library(lmfit INTERFACE)
87 # Add the lmfit interface library to the libgromacs Export name, even though
88 # we will not be installing any content.
89 install(TARGETS lmfit EXPORT libgromacs)
91 set(HAVE_LMFIT 0 CACHE INTERNAL "Is lmfit found?")