1# CMake build rules for the OCaml language. 2# Assumes FindOCaml is used. 3# http://ocaml.org/ 4# 5# Example usage: 6# 7# add_ocaml_library(pkg_a OCAML mod_a OCAMLDEP pkg_b C mod_a_stubs PKG ctypes LLVM core) 8# 9# Unnamed parameters: 10# 11# * Library name. 12# 13# Named parameters: 14# 15# OCAML OCaml module names. Imply presence of a corresponding .ml and .mli files. 16# OCAMLDEP Names of libraries this library depends on. 17# C C stub sources. Imply presence of a corresponding .c file. 18# CFLAGS Additional arguments passed when compiling C stubs. 19# PKG Names of ocamlfind packages this library depends on. 20# LLVM Names of LLVM libraries this library depends on. 21# NOCOPY Do not automatically copy sources (.c, .ml, .mli) from the source directory, 22# e.g. if they are generated. 23# 24 25function(add_ocaml_library name) 26 CMAKE_PARSE_ARGUMENTS(ARG "NOCOPY" "" "OCAML;OCAMLDEP;C;CFLAGS;PKG;LLVM" ${ARGN}) 27 28 set(src ${CMAKE_CURRENT_SOURCE_DIR}) 29 set(bin ${CMAKE_CURRENT_BINARY_DIR}) 30 31 set(ocaml_pkgs) 32 foreach( ocaml_pkg ${ARG_PKG} ) 33 list(APPEND ocaml_pkgs "-package" "${ocaml_pkg}") 34 endforeach() 35 36 set(sources) 37 38 set(ocaml_inputs) 39 40 set(ocaml_outputs "${bin}/${name}.cma") 41 if( ARG_C ) 42 list(APPEND ocaml_outputs 43 "${bin}/lib${name}${CMAKE_STATIC_LIBRARY_SUFFIX}") 44 if ( BUILD_SHARED_LIBS ) 45 list(APPEND ocaml_outputs 46 "${bin}/dll${name}${CMAKE_SHARED_LIBRARY_SUFFIX}") 47 endif() 48 endif() 49 if( HAVE_OCAMLOPT ) 50 list(APPEND ocaml_outputs 51 "${bin}/${name}.cmxa" 52 "${bin}/${name}${CMAKE_STATIC_LIBRARY_SUFFIX}") 53 endif() 54 55 set(ocaml_flags "-lstdc++" "-ldopt" "-L${LLVM_LIBRARY_DIR}" 56 "-ccopt" "-L\\$CAMLORIGIN/.." 57 "-ccopt" "-Wl,-rpath,\\$CAMLORIGIN/.." 58 ${ocaml_pkgs}) 59 60 foreach( ocaml_dep ${ARG_OCAMLDEP} ) 61 get_target_property(dep_ocaml_flags "ocaml_${ocaml_dep}" OCAML_FLAGS) 62 list(APPEND ocaml_flags ${dep_ocaml_flags}) 63 endforeach() 64 65 if( NOT BUILD_SHARED_LIBS ) 66 list(APPEND ocaml_flags "-custom") 67 endif() 68 69 explicit_map_components_to_libraries(llvm_libs ${ARG_LLVM}) 70 foreach( llvm_lib ${llvm_libs} ) 71 list(APPEND ocaml_flags "-l${llvm_lib}" ) 72 endforeach() 73 74 get_property(system_libs TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS) 75 foreach(system_lib ${system_libs}) 76 if (system_lib MATCHES "^-") 77 # If it's an option, pass it without changes. 78 list(APPEND ocaml_flags "${system_lib}" ) 79 else() 80 # Otherwise assume it's a library name we need to link with. 81 list(APPEND ocaml_flags "-l${system_lib}" ) 82 endif() 83 endforeach() 84 85 string(REPLACE ";" " " ARG_CFLAGS "${ARG_CFLAGS}") 86 set(c_flags "${ARG_CFLAGS} ${LLVM_DEFINITIONS}") 87 foreach( include_dir ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR} ) 88 set(c_flags "${c_flags} -I${include_dir}") 89 endforeach() 90 91 foreach( ocaml_file ${ARG_OCAML} ) 92 list(APPEND sources "${ocaml_file}.mli" "${ocaml_file}.ml") 93 94 list(APPEND ocaml_inputs "${bin}/${ocaml_file}.mli" "${bin}/${ocaml_file}.ml") 95 96 list(APPEND ocaml_outputs "${bin}/${ocaml_file}.cmi" "${bin}/${ocaml_file}.cmo") 97 if( HAVE_OCAMLOPT ) 98 list(APPEND ocaml_outputs 99 "${bin}/${ocaml_file}.cmx" 100 "${bin}/${ocaml_file}${CMAKE_C_OUTPUT_EXTENSION}") 101 endif() 102 endforeach() 103 104 foreach( c_file ${ARG_C} ) 105 list(APPEND sources "${c_file}.c") 106 107 list(APPEND c_inputs "${bin}/${c_file}.c") 108 list(APPEND c_outputs "${bin}/${c_file}${CMAKE_C_OUTPUT_EXTENSION}") 109 endforeach() 110 111 if( NOT ARG_NOCOPY ) 112 foreach( source ${sources} ) 113 add_custom_command( 114 OUTPUT "${bin}/${source}" 115 COMMAND "${CMAKE_COMMAND}" "-E" "copy" "${src}/${source}" "${bin}" 116 DEPENDS "${src}/${source}" 117 COMMENT "Copying ${source} to build area") 118 endforeach() 119 endif() 120 121 foreach( c_input ${c_inputs} ) 122 get_filename_component(basename "${c_input}" NAME_WE) 123 add_custom_command( 124 OUTPUT "${basename}${CMAKE_C_OUTPUT_EXTENSION}" 125 COMMAND "${OCAMLFIND}" "ocamlc" "-c" "${c_input}" -ccopt ${c_flags} 126 DEPENDS "${c_input}" 127 COMMENT "Building OCaml stub object file ${basename}${CMAKE_C_OUTPUT_EXTENSION}" 128 VERBATIM) 129 endforeach() 130 131 set(ocaml_params) 132 foreach( ocaml_input ${ocaml_inputs} ${c_outputs}) 133 get_filename_component(filename "${ocaml_input}" NAME) 134 list(APPEND ocaml_params "${filename}") 135 endforeach() 136 137 if( APPLE ) 138 set(ocaml_rpath "@executable_path/../../lib") 139 elseif( UNIX ) 140 set(ocaml_rpath "\\$ORIGIN/../../lib") 141 endif() 142 list(APPEND ocaml_flags "-ldopt" "-Wl,-rpath,${ocaml_rpath}") 143 144 add_custom_command( 145 OUTPUT ${ocaml_outputs} 146 COMMAND "${OCAMLFIND}" "ocamlmklib" "-o" "${name}" ${ocaml_flags} ${ocaml_params} 147 DEPENDS ${ocaml_inputs} ${c_outputs} 148 COMMENT "Building OCaml library ${name}" 149 VERBATIM) 150 151 add_custom_command( 152 OUTPUT "${bin}/${name}.odoc" 153 COMMAND "${OCAMLFIND}" "ocamldoc" 154 "-I" "${bin}" 155 "-I" "${LLVM_LIBRARY_DIR}/ocaml/" 156 "-dump" "${bin}/${name}.odoc" 157 ${ocaml_pkgs} ${ocaml_inputs} 158 DEPENDS ${ocaml_inputs} ${ocaml_outputs} 159 COMMENT "Building OCaml documentation for ${name}" 160 VERBATIM) 161 162 add_custom_target("ocaml_${name}" ALL DEPENDS ${ocaml_outputs} "${bin}/${name}.odoc") 163 164 set_target_properties("ocaml_${name}" PROPERTIES 165 OCAML_FLAGS "-I;${bin}") 166 set_target_properties("ocaml_${name}" PROPERTIES 167 OCAML_ODOC "${bin}/${name}.odoc") 168 169 foreach( ocaml_dep ${ARG_OCAMLDEP} ) 170 add_dependencies("ocaml_${name}" "ocaml_${ocaml_dep}") 171 endforeach() 172 173 foreach( llvm_lib ${llvm_libs} ) 174 add_dependencies("ocaml_${name}" "${llvm_lib}") 175 endforeach() 176 177 set(install_files) 178 set(install_shlibs) 179 foreach( ocaml_output ${ocaml_outputs} ) 180 get_filename_component(ext "${ocaml_output}" EXT) 181 182 if( NOT (ext STREQUAL ".cmo" OR 183 ext STREQUAL CMAKE_C_OUTPUT_EXTENSION OR 184 ext STREQUAL CMAKE_SHARED_LIBRARY_SUFFIX) ) 185 list(APPEND install_files "${ocaml_output}") 186 elseif( ext STREQUAL CMAKE_SHARED_LIBRARY_SUFFIX) 187 list(APPEND install_shlibs "${ocaml_output}") 188 endif() 189 endforeach() 190 191 install(FILES ${install_files} 192 DESTINATION lib/ocaml) 193 install(FILES ${install_shlibs} 194 PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE 195 GROUP_READ GROUP_EXECUTE 196 WORLD_READ WORLD_EXECUTE 197 DESTINATION lib/ocaml) 198 199 foreach( install_file ${install_files} ${install_shlibs} ) 200 get_filename_component(filename "${install_file}" NAME) 201 add_custom_command(TARGET "ocaml_${name}" POST_BUILD 202 COMMAND "${CMAKE_COMMAND}" "-E" "copy" "${install_file}" 203 "${LLVM_LIBRARY_DIR}/ocaml/" 204 COMMENT "Copying OCaml library component ${filename} to intermediate area" 205 VERBATIM) 206 endforeach() 207endfunction() 208