# CMake build rules for the OCaml language.
# Assumes FindOCaml is used.
# http://ocaml.org/
#
# Example usage:
#
# add_ocaml_library(pkg_a OCAML mod_a OCAMLDEP pkg_b C mod_a_stubs PKG ctypes LLVM core)
#
# Unnamed parameters:
#
# * Library name.
#
# Named parameters:
#
# OCAML OCaml module names. Imply presence of a corresponding .ml and .mli files.
# OCAMLDEP Names of libraries this library depends on.
# C C stub sources. Imply presence of a corresponding .c file.
# CFLAGS Additional arguments passed when compiling C stubs.
# PKG Names of ocamlfind packages this library depends on.
# LLVM Names of LLVM libraries this library depends on.
# NOCOPY Do not automatically copy sources (.c, .ml, .mli) from the source directory,
# e.g. if they are generated.
#
function(add_ocaml_library name)
CMAKE_PARSE_ARGUMENTS(ARG "NOCOPY" "" "OCAML;OCAMLDEP;C;CFLAGS;PKG;LLVM" ${ARGN})
set(src ${CMAKE_CURRENT_SOURCE_DIR})
set(bin ${CMAKE_CURRENT_BINARY_DIR})
set(ocaml_pkgs)
foreach( ocaml_pkg ${ARG_PKG} )
list(APPEND ocaml_pkgs "-package" "${ocaml_pkg}")
endforeach()
set(sources)
set(ocaml_inputs)
set(ocaml_outputs "${bin}/${name}.cma")
if( ARG_C )
list(APPEND ocaml_outputs
"${bin}/lib${name}${CMAKE_STATIC_LIBRARY_SUFFIX}")
if ( BUILD_SHARED_LIBS )
list(APPEND ocaml_outputs
"${bin}/dll${name}${CMAKE_SHARED_LIBRARY_SUFFIX}")
endif()
endif()
if( HAVE_OCAMLOPT )
list(APPEND ocaml_outputs
"${bin}/${name}.cmxa"
"${bin}/${name}${CMAKE_STATIC_LIBRARY_SUFFIX}")
endif()
set(ocaml_flags "-lstdc++" "-ldopt" "-L${LLVM_LIBRARY_DIR}"
"-ccopt" "-L\\$CAMLORIGIN/.."
"-ccopt" "-Wl,-rpath,\\$CAMLORIGIN/.."
${ocaml_pkgs})
foreach( ocaml_dep ${ARG_OCAMLDEP} )
get_target_property(dep_ocaml_flags "ocaml_${ocaml_dep}" OCAML_FLAGS)
list(APPEND ocaml_flags ${dep_ocaml_flags})
endforeach()
if( NOT BUILD_SHARED_LIBS )
list(APPEND ocaml_flags "-custom")
endif()
explicit_map_components_to_libraries(llvm_libs ${ARG_LLVM})
foreach( llvm_lib ${llvm_libs} )
list(APPEND ocaml_flags "-l${llvm_lib}" )
endforeach()
get_property(system_libs TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS)
foreach(system_lib ${system_libs})
list(APPEND ocaml_flags "-l${system_lib}" )
endforeach()
string(REPLACE ";" " " ARG_CFLAGS "${ARG_CFLAGS}")
set(c_flags "${ARG_CFLAGS} ${LLVM_DEFINITIONS}")
foreach( include_dir ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR} )
set(c_flags "${c_flags} -I${include_dir}")
endforeach()
foreach( ocaml_file ${ARG_OCAML} )
list(APPEND sources "${ocaml_file}.mli" "${ocaml_file}.ml")
list(APPEND ocaml_inputs "${bin}/${ocaml_file}.mli" "${bin}/${ocaml_file}.ml")
list(APPEND ocaml_outputs "${bin}/${ocaml_file}.cmi" "${bin}/${ocaml_file}.cmo")
if( HAVE_OCAMLOPT )
list(APPEND ocaml_outputs
"${bin}/${ocaml_file}.cmx"
"${bin}/${ocaml_file}${CMAKE_C_OUTPUT_EXTENSION}")
endif()
endforeach()
foreach( c_file ${ARG_C} )
list(APPEND sources "${c_file}.c")
list(APPEND c_inputs "${bin}/${c_file}.c")
list(APPEND c_outputs "${bin}/${c_file}${CMAKE_C_OUTPUT_EXTENSION}")
endforeach()
if( NOT ARG_NOCOPY )
foreach( source ${sources} )
add_custom_command(
OUTPUT "${bin}/${source}"
COMMAND "${CMAKE_COMMAND}" "-E" "copy" "${src}/${source}" "${bin}"
DEPENDS "${src}/${source}"
COMMENT "Copying ${source} to build area")
endforeach()
endif()
foreach( c_input ${c_inputs} )
get_filename_component(basename "${c_input}" NAME_WE)
add_custom_command(
OUTPUT "${basename}${CMAKE_C_OUTPUT_EXTENSION}"
COMMAND "${OCAMLFIND}" "ocamlc" "-c" "${c_input}" -ccopt ${c_flags}
DEPENDS "${c_input}"
COMMENT "Building OCaml stub object file ${basename}${CMAKE_C_OUTPUT_EXTENSION}"
VERBATIM)
endforeach()
set(ocaml_params)
foreach( ocaml_input ${ocaml_inputs} ${c_outputs})
get_filename_component(filename "${ocaml_input}" NAME)
list(APPEND ocaml_params "${filename}")
endforeach()
if( APPLE )
set(ocaml_rpath "@executable_path/../../lib")
elseif( UNIX )
set(ocaml_rpath "\\$ORIGIN/../../lib")
endif()
list(APPEND ocaml_flags "-ldopt" "-Wl,-rpath,${ocaml_rpath}")
add_custom_command(
OUTPUT ${ocaml_outputs}
COMMAND "${OCAMLFIND}" "ocamlmklib" "-o" "${name}" ${ocaml_flags} ${ocaml_params}
DEPENDS ${ocaml_inputs} ${c_outputs}
COMMENT "Building OCaml library ${name}"
VERBATIM)
add_custom_command(
OUTPUT "${bin}/${name}.odoc"
COMMAND "${OCAMLFIND}" "ocamldoc"
"-I" "${bin}"
"-I" "${LLVM_LIBRARY_DIR}/ocaml/"
"-dump" "${bin}/${name}.odoc"
${ocaml_pkgs} ${ocaml_inputs}
DEPENDS ${ocaml_inputs} ${ocaml_outputs}
COMMENT "Building OCaml documentation for ${name}"
VERBATIM)
add_custom_target("ocaml_${name}" ALL DEPENDS ${ocaml_outputs} "${bin}/${name}.odoc")
set_target_properties("ocaml_${name}" PROPERTIES
OCAML_FLAGS "-I;${bin}")
set_target_properties("ocaml_${name}" PROPERTIES
OCAML_ODOC "${bin}/${name}.odoc")
foreach( ocaml_dep ${ARG_OCAMLDEP} )
add_dependencies("ocaml_${name}" "ocaml_${ocaml_dep}")
endforeach()
foreach( llvm_lib ${llvm_libs} )
add_dependencies("ocaml_${name}" "${llvm_lib}")
endforeach()
set(install_files)
set(install_shlibs)
foreach( ocaml_output ${ocaml_outputs} )
get_filename_component(ext "${ocaml_output}" EXT)
if( NOT (ext STREQUAL ".cmo" OR
ext STREQUAL CMAKE_C_OUTPUT_EXTENSION OR
ext STREQUAL CMAKE_SHARED_LIBRARY_SUFFIX) )
list(APPEND install_files "${ocaml_output}")
elseif( ext STREQUAL CMAKE_SHARED_LIBRARY_SUFFIX)
list(APPEND install_shlibs "${ocaml_output}")
endif()
endforeach()
install(FILES ${install_files}
DESTINATION lib/ocaml)
install(FILES ${install_shlibs}
PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE
GROUP_READ GROUP_EXECUTE
WORLD_READ WORLD_EXECUTE
DESTINATION lib/ocaml)
foreach( install_file ${install_files} ${install_shlibs} )
get_filename_component(filename "${install_file}" NAME)
add_custom_command(TARGET "ocaml_${name}" POST_BUILD
COMMAND "${CMAKE_COMMAND}" "-E" "copy" "${install_file}"
"${LLVM_LIBRARY_DIR}/ocaml/"
COMMENT "Copying OCaml library component ${filename} to intermediate area"
VERBATIM)
endforeach()
endfunction()