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#=============================================================================
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# Copyright 2002-2011 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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# This module is shared by multiple languages; use include blocker.
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if(__COMPILER_XL)
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return()
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endif()
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set(__COMPILER_XL 1)
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# Find the CreateExportList program that comes with this toolchain.
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find_program(CMAKE_XL_CreateExportList
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NAMES CreateExportList
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DOC "IBM XL CreateExportList tool"
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)
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macro(__compiler_xl lang)
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# Feature flags.
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set(CMAKE_${lang}_VERBOSE_FLAG "-V")
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set(CMAKE_${lang}_FLAGS_DEBUG_INIT "-g")
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set(CMAKE_${lang}_FLAGS_RELEASE_INIT "-O")
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set(CMAKE_${lang}_FLAGS_MINSIZEREL_INIT "-O")
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set(CMAKE_${lang}_FLAGS_RELWITHDEBINFO_INIT "-g")
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set(CMAKE_${lang}_CREATE_PREPROCESSED_SOURCE "<CMAKE_${lang}_COMPILER> <DEFINES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
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set(CMAKE_${lang}_CREATE_ASSEMBLY_SOURCE "<CMAKE_${lang}_COMPILER> <DEFINES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
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# CMAKE_XL_CreateExportList is part of the AIX XL compilers but not the linux ones.
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# If we found the tool, we'll use it to create exports, otherwise stick with the regular
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# create shared library compile line.
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if (CMAKE_XL_CreateExportList)
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# The compiler front-end passes all object files, archive files, and shared
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# library files named on the command line to CreateExportList to create a
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# list of all symbols to be exported from the shared library. This causes
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# all archive members to be copied into the shared library whether they are
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# needed or not. Instead we run the tool ourselves to pass only the object
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# files so that we export only the symbols actually provided by the sources.
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set(CMAKE_${lang}_CREATE_SHARED_LIBRARY
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"${CMAKE_XL_CreateExportList} <OBJECT_DIR>/objects.exp <OBJECTS>"
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"<CMAKE_${lang}_COMPILER> <CMAKE_SHARED_LIBRARY_${lang}_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> -Wl,-bE:<OBJECT_DIR>/objects.exp <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>"
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)
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endif()
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endmacro()
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