FindIce: New module to find ZeroC Ice

- autodetects Ice on all major platforms
- allows building with all supported Visual Studio versions on Windows
- autodetects the slice path on most platforms
- separately detects the Ice programs, headers, slice files and
  libraries so that any Ice configuration or installation errors can
  be accurately reported, making diagnosis of Ice problems simpler
This commit is contained in:
Roger Leigh 2014-08-07 18:37:36 +01:00 committed by Rolf Eike Beer
parent 4517d6b757
commit 050caef3aa
3 changed files with 398 additions and 0 deletions

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@ -115,6 +115,7 @@ All Modules
/module/FindHg /module/FindHg
/module/FindHSPELL /module/FindHSPELL
/module/FindHTMLHelp /module/FindHTMLHelp
/module/FindIce
/module/FindIcotool /module/FindIcotool
/module/FindImageMagick /module/FindImageMagick
/module/FindITK /module/FindITK

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Help/module/FindIce.rst Normal file
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.. cmake-module:: ../../Modules/FindIce.cmake

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Modules/FindIce.cmake Normal file
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#.rst:
# FindIce
# -------
#
# Find the ZeroC Internet Communication Engine (ICE) programs,
# libraries and datafiles.
#
# This module supports multiple components.
# Components can include any of: ``Freeze``, ``Glacier2``, ``Ice``,
# ``IceBox``, ``IceDB``, ``IceGrid``, ``IcePatch``, ``IceSSL``,
# ``IceStorm``, ``IceUtil``, ``IceXML``, or ``Slice``.
#
# This module reports information about the Ice installation in
# several variables. General variables::
#
# Ice_VERSION - Ice release version
# Ice_FOUND - true if the main programs and libraries were found
# Ice_LIBRARIES - component libraries to be linked
# Ice_INCLUDE_DIRS - the directories containing the Ice headers
# Ice_SLICE_DIRS - the directories containing the Ice slice interface
# definitions
#
# Ice programs are reported in::
#
# Ice_SLICE2CPP_EXECUTABLE - path to slice2cpp executable
# Ice_SLICE2CS_EXECUTABLE - path to slice2cs executable
# Ice_SLICE2FREEZEJ_EXECUTABLE - path to slice2freezej executable
# Ice_SLICE2FREEZE_EXECUTABLE - path to slice2freeze executable
# Ice_SLICE2HTML_EXECUTABLE - path to slice2html executable
# Ice_SLICE2JAVA_EXECUTABLE - path to slice2java executable
# Ice_SLICE2PHP_EXECUTABLE - path to slice2php executable
# Ice_SLICE2PY_EXECUTABLE - path to slice2py executable
# Ice_SLICE2RB_EXECUTABLE - path to slice2rb executable
#
# Ice component libraries are reported in::
#
# Ice_<C>_FOUND - ON if component was found
# Ice_<C>_LIBRARIES - libraries for component
#
# Note that ``<C>`` is the uppercased name of the component.
#
# This module reads hints about search results from::
#
# Ice_HOME - the root of the Ice installation
#
# The environment variable :envvar:`ICE_HOME` may also be used; the
# Ice_HOME variable takes precedence.
#
# The following cache variables may also be set::
#
# Ice_<P>_EXECUTABLE - the path to executable <P>
# Ice_INCLUDE_DIR - the directory containing the Ice headers
# Ice_SLICE_DIR - the directory containing the Ice slice interface
# definitions
# Ice_<C>_LIBRARY - the library for component <C>
#
# .. note::
#
# In most cases none of the above variables will require setting,
# unless multiple Ice versions are available and a specific version
# is required. On Windows, the most recent version of Ice will be
# found through the registry. On Unix, the programs, headers and
# libraries will usually be in standard locations, but Ice_SLICE_DIRS
# might not be automatically detected (commonly known locations are
# searched). All the other variables are defaulted using Ice_HOME,
# if set. It's possible to set Ice_HOME and selectively specify
# alternative locations for the other components; this might be
# required for e.g. newer versions of Visual Studio if the
# heuristics are not sufficient to identify the correct programs and
# libraries for the specific Visual Studio version.
#
# Other variables one may set to control this module are::
#
# Ice_DEBUG - Set to ON to enable debug output from FindIce.
# Written by Roger Leigh <rleigh@codelibre.net>
#=============================================================================
# Copyright 2014 University of Dundee
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
# The Ice checks are contained in a function due to the large number
# of temporary variables needed.
function(_Ice_FIND)
# Released versions of Ice, including generic short forms
set(ice_versions
3
3.5
3.5.1
3.5.0
3.4
3.4.2
3.4.1
3.4.0
3.3
3.3.1
3.3.0)
# Set up search paths, taking compiler into account. Search Ice_HOME,
# with ICE_HOME in the environment as a fallback if unset.
if(Ice_HOME)
list(APPEND ice_roots "${Ice_HOME}")
else()
if(NOT "$ENV{ICE_HOME}" STREQUAL "")
file(TO_CMAKE_PATH "$ENV{ICE_HOME}" NATIVE_PATH)
list(APPEND ice_roots "${NATIVE_PATH}")
set(Ice_HOME "${NATIVE_PATH}"
CACHE PATH "Location of the Ice installation" FORCE)
endif()
endif()
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
# 64-bit path suffix
set(_x64 "/x64")
# 64-bit library directory
set(_lib64 "lib64")
endif()
if(MSVC_VERSION)
# VS 8.0
if(NOT MSVC_VERSION VERSION_LESS 1400 AND MSVC_VERSION VERSION_LESS 1500)
set(vcver "vc80")
set(vcyear "2005")
# VS 9.0
elseif(NOT MSVC_VERSION VERSION_LESS 1500 AND MSVC_VERSION VERSION_LESS 1600)
set(vcver "vc90")
set(vcyear "2008")
# VS 10.0
elseif(NOT MSVC_VERSION VERSION_LESS 1600 AND MSVC_VERSION VERSION_LESS 1700)
set(vcver "vc100")
# VS 11.0
elseif(NOT MSVC_VERSION VERSION_LESS 1700 AND MSVC_VERSION VERSION_LESS 1800)
set(vcver "vc110")
# VS 12.0
elseif(NOT MSVC_VERSION VERSION_LESS 1800 AND MSVC_VERSION VERSION_LESS 1900)
set(vcver "vc120")
# VS 14.0
elseif(NOT MSVC_VERSION VERSION_LESS 1900 AND MSVC_VERSION VERSION_LESS 2000)
set(vcver "vc140")
endif()
endif()
# For compatibility with ZeroC Windows builds.
if(vcver)
# Earlier Ice (3.3) builds don't use vcnnn subdirectories, but are harmless to check.
list(APPEND ice_binary_suffixes "bin/${vcver}${_x64}" "bin/${vcver}")
list(APPEND ice_library_suffixes "lib/${vcver}${_x64}" "lib/${vcver}")
endif()
# Generic 64-bit and 32-bit directories
list(APPEND ice_binary_suffixes "bin${_x64}" "bin")
list(APPEND ice_library_suffixes "${_lib64}" "lib${_x64}" "lib")
list(APPEND ice_include_suffixes "include")
list(APPEND ice_slice_suffixes "slice")
# On Windows, look in the registry for install locations. Different
# versions of Ice install support different compiler versions.
if(vcver)
foreach(ice_version ${ice_versions})
# Ice 3.3 releases use a Visual Studio year suffix and value is
# enclosed in double quotes, though only the leading quote is
# returned by get_filename_component.
unset(ice_location)
if(vcyear)
get_filename_component(ice_location
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\ZeroC\\Ice ${ice_version} for Visual Studio ${vcyear};InstallDir]"
PATH)
if(ice_location AND NOT ("${ice_location}" STREQUAL "/registry" OR "${ice_location}" STREQUAL "/"))
string(REGEX REPLACE "^\"(.*)\"?$" "\\1" ice_location "${ice_location}")
get_filename_component(ice_location "${ice_location}" ABSOLUTE)
else()
unset(ice_location)
endif()
endif()
# Ice 3.4+ releases don't use a suffix
if(NOT ice_location OR "${ice_location}" STREQUAL "/registry")
get_filename_component(ice_location
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\ZeroC\\Ice ${ice_version};InstallDir]"
ABSOLUTE)
endif()
if(ice_location AND NOT "${ice_location}" STREQUAL "/registry")
list(APPEND ice_roots "${ice_location}")
endif()
endforeach()
else()
foreach(ice_version ${ice_versions})
# Prefer 64-bit variants if present (and using a 64-bit compiler)
list(APPEND ice_roots "/opt/Ice-${ice_version}")
endforeach()
endif()
set(ice_programs
slice2cpp
slice2cs
slice2freezej
slice2freeze
slice2html
slice2java
slice2php
slice2py
slice2rb)
# Find all Ice programs
foreach(program ${ice_programs})
string(TOUPPER "${program}" program_upcase)
set(cache_var "Ice_${program_upcase}_EXECUTABLE")
set(program_var "Ice_${program_upcase}_EXECUTABLE")
find_program("${cache_var}" "${program}"
HINTS ${ice_roots}
PATH_SUFFIXES ${ice_binary_suffixes}
DOC "Ice ${program} executable")
mark_as_advanced(cache_var)
set("${program_var}" "${${cache_var}}" PARENT_SCOPE)
endforeach()
# Get version.
if(Ice_SLICE2CPP_EXECUTABLE)
# Execute in C locale for safety
set(_Ice_SAVED_LC_ALL "$ENV{LC_ALL}")
set(ENV{LC_ALL} C)
execute_process(COMMAND ${Ice_SLICE2CPP_EXECUTABLE} --version
ERROR_VARIABLE Ice_VERSION_SLICE2CPP_FULL
ERROR_STRIP_TRAILING_WHITESPACE)
# restore the previous LC_ALL
set(ENV{LC_ALL} ${_Ice_SAVED_LC_ALL})
# Make short version
string(REGEX REPLACE "^(.*)\\.[^.]*$" "\\1" Ice_VERSION_SLICE2CPP_SHORT "${Ice_VERSION_SLICE2CPP_FULL}")
set(Ice_VERSION "${Ice_VERSION_SLICE2CPP_FULL}" PARENT_SCOPE)
endif()
message(STATUS "Ice version: ${Ice_VERSION_SLICE2CPP_FULL}")
# The following searches prefer the version found; note reverse
# order due to prepending.
if(NOT MSVC)
list(INSERT ice_roots 0 "/opt/Ice-${Ice_VERSION_SLICE2CPP_SHORT}")
list(INSERT ice_roots 0 "/opt/Ice-${Ice_VERSION_SLICE2CPP_FULL}")
endif()
# Find include directory
find_path(Ice_INCLUDE_DIR
NAMES "Ice/Ice.h"
HINTS ${ice_roots}
PATH_SUFFIXES ${ice_include_suffixes}
DOC "Ice include directory")
set(Ice_INCLUDE_DIR "${Ice_INCLUDE_DIR}" PARENT_SCOPE)
# In common use on Linux, MacOS X (homebrew) and FreeBSD; prefer
# version-specific dir
list(APPEND ice_slice_paths
/usr/local/share /usr/share)
list(APPEND ice_slice_suffixes
"Ice-${Ice_VERSION_SLICE2CPP_FULL}/slice"
"Ice-${Ice_VERSION_SLICE2CPP_SHORT}/slice"
Ice)
# Find slice directory
find_path(Ice_SLICE_DIR
NAMES "Ice/Connection.ice"
HINTS ${ice_roots}
${ice_slice_paths}
PATH_SUFFIXES ${ice_slice_suffixes}
NO_DEFAULT_PATH
DOC "Ice slice directory")
set(Ice_SLICE_DIR "${Ice_SLICE_DIR}" PARENT_SCOPE)
# Find all Ice libraries
set(Ice_REQUIRED_LIBS_FOUND ON)
foreach(component ${Ice_FIND_COMPONENTS})
string(TOUPPER "${component}" component_upcase)
set(component_cache "Ice_${component_upcase}_LIBRARY")
set(component_found "${component_upcase}_FOUND")
find_library("${component_cache}" "${component}"
HINTS ${ice_roots}
PATH_SUFFIXES ${ice_library_suffixes}
DOC "Ice ${component} library")
mark_as_advanced("${component_cache}")
if("${component_cache}")
set("${component_found}" ON)
list(APPEND Ice_LIBRARY "${${component_cache}}")
endif()
mark_as_advanced("${component_found}")
set("${component_cache}" "${${component_cache}}" PARENT_SCOPE)
set("${component_found}" "${${component_found}}" PARENT_SCOPE)
if("${component_found}")
if ("Ice_FIND_REQUIRED_${component}")
list(APPEND Ice_LIBS_FOUND "${component} (required)")
else()
list(APPEND Ice_LIBS_FOUND "${component} (optional)")
endif()
else()
if ("Ice_FIND_REQUIRED_${component}")
set(Ice_REQUIRED_LIBS_FOUND OFF)
list(APPEND Ice_LIBS_NOTFOUND "${component} (required)")
else()
list(APPEND Ice_LIBS_NOTFOUND "${component} (optional)")
endif()
endif()
endforeach()
set(_Ice_REQUIRED_LIBS_FOUND "${Ice_REQUIRED_LIBS_FOUND}" PARENT_SCOPE)
set(Ice_LIBRARY "${Ice_LIBRARY}" PARENT_SCOPE)
if(Ice_LIBS_FOUND)
message(STATUS "Found the following Ice libraries:")
foreach(found ${Ice_LIBS_FOUND})
message(STATUS " ${found}")
endforeach()
endif()
if(Ice_LIBS_NOTFOUND)
message(STATUS "The following Ice libraries were not found:")
foreach(notfound ${Ice_LIBS_NOTFOUND})
message(STATUS " ${notfound}")
endforeach()
endif()
if(Ice_DEBUG)
message(STATUS "--------FindIce.cmake search debug--------")
message(STATUS "ICE binary path search order: ${ice_roots}")
message(STATUS "ICE include path search order: ${ice_roots}")
message(STATUS "ICE slice path search order: ${ice_roots} ${ice_slice_paths}")
message(STATUS "ICE library path search order: ${ice_roots}")
message(STATUS "----------------")
endif()
endfunction()
_Ice_FIND()
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Ice
FOUND_VAR Ice_FOUND
REQUIRED_VARS Ice_SLICE2CPP_EXECUTABLE
Ice_INCLUDE_DIR
Ice_SLICE_DIR
Ice_LIBRARY
_Ice_REQUIRED_LIBS_FOUND
VERSION_VAR Ice_VERSION
FAIL_MESSAGE "Failed to find all Ice components")
unset(_Ice_REQUIRED_LIBS_FOUND)
if(Ice_FOUND)
set(Ice_INCLUDE_DIRS "${Ice_INCLUDE_DIR}")
set(Ice_SLICE_DIRS "${Ice_SLICE_DIR}")
set(Ice_LIBRARIES "${Ice_LIBRARY}")
foreach(_Ice_component ${Ice_FIND_COMPONENTS})
string(TOUPPER "${_Ice_component}" _Ice_component_upcase)
set(_Ice_component_cache "Ice_${_Ice_component_upcase}_LIBRARY")
set(_Ice_component_lib "Ice_${_Ice_component_upcase}_LIBRARIES")
set(_Ice_component_found "${_Ice_component_upcase}_FOUND")
if("${_Ice_component_found}")
set("${_Ice_component_lib}" "${${_Ice_component_cache}}")
endif()
unset(_Ice_component_upcase)
unset(_Ice_component_cache)
unset(_Ice_component_lib)
unset(_Ice_component_found)
endforeach()
endif()
if(Ice_DEBUG)
message(STATUS "--------FindIce.cmake results debug--------")
message(STATUS "Ice_VERSION number: ${Ice_VERSION}")
message(STATUS "Ice_HOME directory: ${Ice_HOME}")
message(STATUS "Ice_INCLUDE_DIR directory: ${Ice_INCLUDE_DIR}")
message(STATUS "Ice_SLICE_DIR directory: ${Ice_SLICE_DIR}")
message(STATUS "Ice_LIBRARIES: ${Ice_LIBRARIES}")
message(STATUS "slice2cpp executable: ${Ice_SLICE2CPP_EXECUTABLE}")
message(STATUS "slice2cs executable: ${Ice_SLICE2CS_EXECUTABLE}")
message(STATUS "slice2freezej executable: ${Ice_SLICE2FREEZEJ_EXECUTABLE}")
message(STATUS "slice2freeze executable: ${Ice_SLICE2FREEZE_EXECUTABLE}")
message(STATUS "slice2html executable: ${Ice_SLICE2HTML_EXECUTABLE}")
message(STATUS "slice2java executable: ${Ice_SLICE2JAVA_EXECUTABLE}")
message(STATUS "slice2php executable: ${Ice_SLICE2PHP_EXECUTABLE}")
message(STATUS "slice2py executable: ${Ice_SLICE2PY_EXECUTABLE}")
message(STATUS "slice2rb executable: ${Ice_SLICE2RB_EXECUTABLE}")
foreach(component ${Ice_FIND_COMPONENTS})
string(TOUPPER "${component}" component_upcase)
set(component_lib "Ice_${component_upcase}_LIBRARIES")
set(component_found "${component_upcase}_FOUND")
message(STATUS "${component} library found: ${${component_found}}")
message(STATUS "${component} library: ${${component_lib}}")
endforeach()
message(STATUS "----------------")
endif()