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136 lines
5.5 KiB
CMake
136 lines
5.5 KiB
CMake
# Guard against multiple inclusions
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if(__cmake_craype_crayprgenv)
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return()
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endif()
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set(__cmake_craype_crayprgenv 1)
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# CrayPrgEnv: loaded when compiling through the Cray compiler wrapper.
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# The compiler wrapper can run on a front-end node or a compute node.
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cmake_policy(PUSH)
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cmake_policy(SET CMP0057 NEW) # if IN_LIST
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# One-time setup of the craype environment. First, check the wrapper config.
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# The wrapper's selection of a compiler (gcc, clang, intel, etc.) and
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# default include/library paths is selected using the "module" command.
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# The CRAYPE_LINK_TYPE environment variable partly controls if static
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# or dynamic binaries are generated (see __cmake_craype_linktype below).
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# Running cmake and then changing module and/or linktype configuration
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# may cause build problems (since the data in the cmake cache may no
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# longer be correct after the change). We can look for this and warn
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# the user about it. Second, use the "module" provided PKG_CONFIG_PATH-like
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# environment variable to add additional prefixes to the system prefix
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# path.
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function(__cmake_craype_setupenv)
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if(NOT DEFINED __cmake_craype_setupenv_done) # only done once per run
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set(__cmake_craype_setupenv_done 1 PARENT_SCOPE)
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unset(__cmake_check)
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set(CMAKE_CRAYPE_LINKTYPE "$ENV{CRAYPE_LINK_TYPE}" CACHE STRING
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"saved value of CRAYPE_LINK_TYPE environment variable")
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set(CMAKE_CRAYPE_LOADEDMODULES "$ENV{LOADEDMODULES}" CACHE STRING
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"saved value of LOADEDMODULES environment variable")
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mark_as_advanced(CMAKE_CRAYPE_LINKTYPE CMAKE_CRAYPE_LOADEDMODULES)
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if (NOT "${CMAKE_CRAYPE_LINKTYPE}" STREQUAL "$ENV{CRAYPE_LINK_TYPE}")
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string(APPEND __cmake_check "CRAYPE_LINK_TYPE ")
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endif()
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if (NOT "${CMAKE_CRAYPE_LOADEDMODULES}" STREQUAL "$ENV{LOADEDMODULES}")
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string(APPEND __cmake_check "LOADEDMODULES ")
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endif()
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if(DEFINED __cmake_check)
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message(STATUS "NOTE: ${__cmake_check}changed since initial config!")
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message(STATUS "NOTE: this may cause unexpected build errors.")
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endif()
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# loop over variables of interest
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foreach(pkgcfgvar PKG_CONFIG_PATH PKG_CONFIG_PATH_DEFAULT
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PE_PKG_CONFIG_PATH)
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file(TO_CMAKE_PATH "$ENV{${pkgcfgvar}}" pkgcfg)
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foreach(path ${pkgcfg})
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string(REGEX REPLACE "(.*)/lib[^/]*/pkgconfig$" "\\1" path "${path}")
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if(NOT "${path}" STREQUAL "" AND
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NOT "${path}" IN_LIST CMAKE_SYSTEM_PREFIX_PATH)
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list(APPEND CMAKE_SYSTEM_PREFIX_PATH "${path}")
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endif()
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endforeach()
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endforeach()
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# push it up out of this function into the parent scope
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set(CMAKE_SYSTEM_PREFIX_PATH "${CMAKE_SYSTEM_PREFIX_PATH}" PARENT_SCOPE)
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endif()
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endfunction()
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# The wrapper disables dynamic linking by default. Dynamic linking is
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# enabled either by setting $ENV{CRAYPE_LINK_TYPE} to "dynamic" or by
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# specifying "-dynamic" to the wrapper when linking. Specifying "-static"
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# to the wrapper when linking takes priority over $ENV{CRAYPE_LINK_TYPE}.
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# Furthermore, if you specify multiple "-dynamic" and "-static" flags to
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# the wrapper when linking, the last one will win. In this case, the
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# wrapper will also print a warning like:
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# Warning: -dynamic was already seen on command line, overriding with -static.
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#
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# note that cmake applies both CMAKE_${lang}_FLAGS and CMAKE_EXE_LINKER_FLAGS
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# (in that order) to the linking command, so -dynamic can appear in either
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# variable.
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#
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# Note: As of CrayPE v19.06 (which translates to the craype/2.6.0 module)
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# the default has changed and is now dynamic by default. This is handled
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# accordingly
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function(__cmake_craype_linktype lang rv)
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# start with ENV, but allow flags to override
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if(("$ENV{CRAYPE_VERSION}" STREQUAL "") OR
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("$ENV{CRAYPE_VERSION}" VERSION_LESS "2.6"))
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if("$ENV{CRAYPE_LINK_TYPE}" STREQUAL "dynamic")
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set(linktype dynamic)
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else()
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set(linktype static)
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endif()
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else()
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if("$ENV{CRAYPE_LINK_TYPE}" STREQUAL "static")
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set(linktype static)
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else()
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set(linktype dynamic)
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endif()
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endif()
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# combine flags and convert to a list so we can apply the flags in order
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set(linkflags "${CMAKE_${lang}_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}")
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string(REPLACE " " ";" linkflags "${linkflags}")
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foreach(flag IN LISTS linkflags)
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if("${flag}" STREQUAL "-dynamic")
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set(linktype dynamic)
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elseif("${flag}" STREQUAL "-static")
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set(linktype static)
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endif()
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endforeach()
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set(${rv} ${linktype} PARENT_SCOPE)
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endfunction()
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macro(__CrayPrgEnv_setup lang)
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if(DEFINED ENV{CRAYPE_VERSION})
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message(STATUS "Cray Programming Environment $ENV{CRAYPE_VERSION} ${lang}")
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elseif(DEFINED ENV{ASYNCPE_VERSION})
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message(STATUS "Cray XT Programming Environment $ENV{ASYNCPE_VERSION} ${lang}")
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else()
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message(STATUS "Cray Programming Environment (unknown version) ${lang}")
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endif()
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# setup the craype environment
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__cmake_craype_setupenv()
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# Flags for the Cray wrappers
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set(CMAKE_STATIC_LIBRARY_LINK_${lang}_FLAGS "-static")
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set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-shared")
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set(CMAKE_SHARED_LIBRARY_LINK_${lang}_FLAGS "-dynamic")
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# determine linktype from environment and compiler flags
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__cmake_craype_linktype(${lang} __cmake_craype_${lang}_linktype)
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# switch off shared libs if we get a static linktype
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if("${__cmake_craype_${lang}_linktype}" STREQUAL "static")
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set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS FALSE)
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set(BUILD_SHARED_LIBS FALSE CACHE BOOL "")
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
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set(CMAKE_LINK_SEARCH_START_STATIC TRUE)
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endif()
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endmacro()
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cmake_policy(POP)
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