[CMake] Add RCC platform configuration checks

1 files changed, 239 insertions, 0 deletions

diff --git a/rcc/cmake/modules/AddOCaml.cmake b/rcc/cmake/modules/AddOCaml.cmake
new file mode 100644
index 0000000..01fb5a1
--- /dev/null
+++ b/rcc/cmake/modules/AddOCaml.cmake
@@ -0,0 +1,239 @@
+# 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 RCC 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.
+# RCC      Names of RCC 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;RCC" ${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}${CMAKE_STATIC_LIBRARY_SUFFIX}")
+  endif()
+
+  set(ocaml_flags "-lstdc++" "-ldopt" "-L${RCC_LIBRARY_DIR}"
+                  "-ccopt" "-L\\$CAMLORIGIN/../.."
+                  "-ccopt" "-Wl,-rpath,\\$CAMLORIGIN/../.."
+                  ${ocaml_pkgs})
+
+  set(ocaml_dep_inputs)
+  foreach( ocaml_dep ${ARG_OCAMLDEP} )
+    get_target_property(dep_ocaml_flags "ocaml_${ocaml_dep}" OCAML_FLAGS)
+    list(APPEND ocaml_flags ${dep_ocaml_flags})
+    get_target_property(dep_ocaml_outputs "ocaml_${ocaml_dep}" OCAML_OUTPUTS)
+    list(APPEND ocaml_dep_inputs ${dep_ocaml_outputs})
+  endforeach()
+
+  if( NOT BUILD_SHARED_LIBS )
+    list(APPEND ocaml_flags "-custom")
+  endif()
+
+  if(RCC_LINK_RCC_DYLIB)
+    list(APPEND ocaml_flags "-lRCC")
+  else()
+    explicit_map_components_to_libraries(rcc_libs ${ARG_RCC})
+    foreach( rcc_lib ${rcc_libs} )
+      list(APPEND ocaml_flags "-l${rcc_lib}" )
+    endforeach()
+
+    get_property(system_libs TARGET RCCSupport PROPERTY RCC_SYSTEM_LIBS)
+    foreach(system_lib ${system_libs})
+      if (system_lib MATCHES "^-")
+        # If it's an option, pass it without changes.
+        list(APPEND ocaml_flags "${system_lib}" )
+      else()
+        # Otherwise assume it's a library name we need to link with.
+        list(APPEND ocaml_flags "-l${system_lib}" )
+      endif()
+    endforeach()
+  endif()
+
+  string(REPLACE ";" " " ARG_CFLAGS "${ARG_CFLAGS}")
+  set(c_flags "${ARG_CFLAGS} ${RCC_DEFINITIONS}")
+  foreach( include_dir ${RCC_INCLUDE_DIR} ${RCC_MAIN_INCLUDE_DIR} )
+    set(c_flags "${c_flags} -I${include_dir}")
+  endforeach()
+  # include -D/-UNDEBUG to match dump function visibility
+  # regex from HandleRCCOptions.cmake
+  string(REGEX MATCH "(^| )[/-][UD] *NDEBUG($| )" flag_matches
+         "${CMAKE_C_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${CMAKE_C_FLAGS}")
+  set(c_flags "${c_flags} ${flag_matches}")
+
+  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}/${ocaml_file}.cmo")
+
+        list(APPEND ocaml_outputs "${bin}/${ocaml_file}.cmti" "${bin}/${ocaml_file}.cmt")
+
+    if( HAVE_OCAMLOPT )
+      list(APPEND ocaml_outputs
+           "${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 "${filename}")
+  endforeach()
+
+  if( APPLE )
+    set(ocaml_rpath "@executable_path/../../../lib${RCC_LIBDIR_SUFFIX}")
+  elseif( UNIX )
+    set(ocaml_rpath "\\$ORIGIN/../../../lib${RCC_LIBDIR_SUFFIX}")
+  endif()
+  list(APPEND ocaml_flags "-ldopt" "-Wl,-rpath,${ocaml_rpath}")
+
+  add_custom_command(
+    OUTPUT ${ocaml_outputs}
+    COMMAND "${OCAMLFIND}" "ocamlmklib" "-ocamlcflags" "-bin-annot"
+      "-o" "${name}" ${ocaml_flags} ${ocaml_params}
+    DEPENDS ${ocaml_inputs} ${ocaml_dep_inputs} ${c_outputs}
+    COMMENT "Building OCaml library ${name}"
+    VERBATIM)
+
+  add_custom_command(
+    OUTPUT "${bin}/${name}.odoc"
+    COMMAND "${OCAMLFIND}" "ocamldoc"
+            "-I" "${bin}"
+            "-I" "${RCC_LIBRARY_DIR}/ocaml/rcc/"
+            "-dump" "${bin}/${name}.odoc"
+            ${ocaml_pkgs} ${ocaml_inputs}
+    DEPENDS ${ocaml_inputs} ${ocaml_dep_inputs} ${ocaml_outputs}
+    COMMENT "Building OCaml documentation for ${name}"
+    VERBATIM)
+
+  add_custom_target("ocaml_${name}" ALL DEPENDS ${ocaml_outputs} "${bin}/${name}.odoc")
+  get_subproject_title(subproject_title)
+  set_target_properties("ocaml_${name}" PROPERTIES FOLDER "${subproject_title}/Bindings/OCaml")
+
+  set_target_properties("ocaml_${name}" PROPERTIES
+    OCAML_FLAGS "-I;${bin}")
+  set_target_properties("ocaml_${name}" PROPERTIES
+    OCAML_ODOC "${bin}/${name}.odoc")
+  set_target_properties("ocaml_${name}" PROPERTIES
+    OCAML_OUTPUTS "${ocaml_outputs}")
+
+  foreach( ocaml_dep ${ARG_OCAMLDEP} )
+    add_dependencies("ocaml_${name}" "ocaml_${ocaml_dep}")
+  endforeach()
+
+  if( NOT RCC_OCAML_OUT_OF_TREE )
+    foreach( rcc_lib ${rcc_libs} )
+      add_dependencies("ocaml_${name}" "${rcc_lib}")
+    endforeach()
+  endif()
+
+  add_dependencies("ocaml_all" "ocaml_${name}")
+
+  set(install_files)
+  set(install_shlibs)
+  foreach( ocaml_output ${ocaml_inputs} ${ocaml_outputs} )
+    get_filename_component(ext "${ocaml_output}" EXT)
+
+    if( NOT (ext STREQUAL ".cmo" OR
+             ext STREQUAL ".ml" 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 ${install_files}
+          DESTINATION "${RCC_OCAML_INSTALL_PATH}/rcc")
+  install(FILES ${install_shlibs}
+          PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE
+                      GROUP_READ GROUP_EXECUTE
+                      WORLD_READ WORLD_EXECUTE
+          DESTINATION "${RCC_OCAML_INSTALL_PATH}/stublibs")
+
+  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" "${install_file}"
+                                             "${RCC_LIBRARY_DIR}/ocaml/rcc/"
+      COMMENT "Copying OCaml library component ${filename} to intermediate area"
+      VERBATIM)
+    add_dependencies("ocaml_${name}" ocaml_make_directory)
+  endforeach()
+endfunction()
+
+add_custom_target(ocaml_make_directory
+  COMMAND "${CMAKE_COMMAND}" "-E" "make_directory" "${RCC_LIBRARY_DIR}/ocaml/rcc")
+add_custom_target("ocaml_all")
+set_target_properties(ocaml_all PROPERTIES FOLDER "RCC/Bindings/OCaml")
+set_target_properties(ocaml_make_directory PROPERTIES FOLDER "RCC/Bindings/OCaml")