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Compilers.cmake
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Compilers.cmake
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# Flags for builds with different machines/compilers.
#
# This module is currently a catch-all for compiler-specific functionality
# needed by CESM. It defines OS and compiler CPP macros and CESM build
# types, as well as including the file containing CESM compiler flags, if
# necessary.
#
# There is also one function intended for CTest test writers, described
# below.
#
#==========================================================================
#
# define_Fortran_stop_failure
#
# Arguments:
# test_name - Name of a CTest test.
#
# Ensures that if the named test uses "STOP 1" to signal failure, that this
# is detected by CTest. Currently this is only necessary for NAG, which
# prints the stop code rather than using it as an error code.
#
#==========================================================================
#==========================================================================
# Copyright (c) 2013-2014, University Corporation for Atmospheric Research
#
# This software is distributed under a two-clause BSD license, with no
# warranties, express or implied. See the accompanying LICENSE file for
# details.
#==========================================================================
#=================================================
# Define OS and compiler macros.
#=================================================
# Define OS.
string(TOUPPER ${CMAKE_SYSTEM_NAME} os)
add_definitions(-D${os})
# Define CESM-compatible compiler names.
if(${CMAKE_Fortran_COMPILER_ID} STREQUAL NAG)
set(compiler_name nag)
elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL GNU)
set(compiler_name gnu)
elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL XL)
set(compiler_name ibm)
elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL Intel)
set(compiler_name intel)
elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL PGI)
set(compiler_name pgi)
endif()
# Define CPP macro for the compiler.
string(TOUPPER -DCPR${compiler_name} compiler_cppdef)
add_definitions(${compiler_cppdef})
#=================================================
# Utility functions.
#=================================================
# Add flags to space-separated list rather than normal CMake list.
function(add_flags list)
string(REPLACE ";" " " flags "${ARGN}")
set(${list} "${${list}} ${flags}" PARENT_SCOPE)
endfunction()
# Add configuration-specific preprocessor definitions.
function(add_config_definitions configuration)
get_directory_property(cppdefs COMPILE_DEFINITIONS_${configuration})
foreach(flag IN LISTS ARGN)
string(REPLACE "-D" "" def "${flag}")
list(APPEND cppdefs ${def})
endforeach()
set_directory_properties(PROPERTIES COMPILE_DEFINITIONS_${configuration}
"${cppdefs}")
endfunction()
#=================================================
# Build flags required to use pFUnit.
#=================================================
if(${CMAKE_Fortran_COMPILER_ID} STREQUAL Intel)
add_flags(CMAKE_Fortran_FLAGS -assume realloc_lhs)
endif()
#=================================================
# Add flags for debugging output.
#=================================================
# Define Fortran compiler flags.
# Add pretty output and extra warnings regardless of build type. However,
# don't set any options in the generic flags that would affect the
# generated binary, because we want to be able to get binaries that
# resemble what you get from the CESM flags.
if(${CMAKE_Fortran_COMPILER_ID} STREQUAL NAG)
add_flags(CMAKE_Fortran_FLAGS -strict95)
if(USE_COLOR)
add_flags(CMAKE_Fortran_FLAGS -colour)
endif()
elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL GNU)
# Turn on warnings, but leave out uninitialized check as it was producing
# a lot of false positives.
add_flags(CMAKE_Fortran_FLAGS -Wall -Wextra -Wno-uninitialized)
elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL XL)
elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL Intel)
elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL PGI)
endif()
# Define C flags, analogous to the above Fortran block.
if(CMAKE_C_COMPILER_LOADED)
if(${CMAKE_C_COMPILER_ID} STREQUAL GNU)
add_flags(CMAKE_C_FLAGS -Wall -Wextra -pedantic)
endif()
endif()
#=================================================
# Help CTest tests recognize when "stop X" is called with non-zero X.
#=================================================
# Detect "STOP" for CTest.
if(${CMAKE_Fortran_COMPILER_ID} STREQUAL NAG)
# NAG prints the stop code instead of yielding a non-zero return, so we
# have to use a regex to catch that.
function(define_Fortran_stop_failure test_name)
set_tests_properties(${test_name} PROPERTIES
FAIL_REGULAR_EXPRESSION "STOP: [1-9]")
endfunction(define_Fortran_stop_failure)
else()
# Usually, stop /= 0 is already detected with the return code.
function(define_Fortran_stop_failure test_name)
endfunction(define_Fortran_stop_failure)
endif()