+++ /dev/null
-# Copyright (c) 2016 Evan Nemerson <evan@nemerson.com>
-#
-# Permission is hereby granted, free of charge, to any person
-# obtaining a copy of this software and associated documentation files
-# (the "Software"), to deal in the Software without restriction,
-# including without limitation the rights to use, copy, modify, merge,
-# publish, distribute, sublicense, and/or sell copies of the Software,
-# and to permit persons to whom the Software is furnished to do so,
-# subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be
-# included in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
-# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# SOFTWARE.
-
-# This module provides a convenient way to add C/C++ compiler flags if
-# the compiler supports them.
-
-include (CheckCCompilerFlag)
-include (CheckCXXCompilerFlag)
-
-# Depending on the settings, some compilers will accept unknown flags.
-# We try to disable this behavior by also passing these flags when we
-# check if a flag is supported.
-set (ADD_COMPILER_FLAGS_PREPEND "")
-
-if ("GNU" STREQUAL "${CMAKE_C_COMPILER_ID}")
- set (ADD_COMPILER_FLAGS_PREPEND "-Wall -Wextra -Werror")
-elseif ("Clang" STREQUAL "${CMAKE_C_COMPILER_ID}")
- set (ADD_COMPILER_FLAGS_PREPEND "-Werror=unknown-warning-option")
-endif ()
-
-##
-# Set a variable to different flags, depending on which compiler is in
-# use.
-#
-# Example:
-# set_compiler_flags(VARIABLE varname MSVC /wd666 INTEL /wd1729)
-#
-# This will set varname to /wd666 if the compiler is MSVC, and /wd1729
-# if it is Intel.
-#
-# Possible compilers:
-# - GCC: GNU C Compiler
-# - GCCISH: A compiler that (tries to) be GCC-compatible on the CLI
-# (i.e., anything but MSVC).
-# - CLANG: clang
-# - MSVC: Microsoft Visual C++ compiler
-# - INTEL: Intel C Compiler
-#
-# Note: the compiler is determined based on the value of the
-# CMAKE_C_COMPILER_ID variable, not CMAKE_CXX_COMPILER_ID.
-##
-function (set_compiler_specific_flags)
- set (oneValueArgs VARIABLE)
- set (multiValueArgs GCC GCCISH INTEL CLANG MSVC)
- cmake_parse_arguments(COMPILER_SPECIFIC_FLAGS "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
- unset (options)
- unset (oneValueArgs)
- unset (multiValueArgs)
-
- set (compiler_flags)
-
- if ("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU")
- list (APPEND compiler_flags ${COMPILER_SPECIFIC_FLAGS_GCC})
- elseif("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang")
- list (APPEND compiler_flags ${COMPILER_SPECIFIC_FLAGS_CLANG})
- elseif("${CMAKE_C_COMPILER_ID}" STREQUAL "Intel")
- list (APPEND compiler_flags ${COMPILER_SPECIFIC_FLAGS_INTEL})
- elseif("${CMAKE_C_COMPILER_ID}" STREQUAL "MSVC")
- list (APPEND compiler_flags ${COMPILER_SPECIFIC_FLAGS_MSVC})
- endif()
-
- if (NOT "${CMAKE_C_COMPILER_ID}" STREQUAL "MSVC")
- list (APPEND compiler_flags ${COMPILER_SPECIFIC_FLAGS_GCCISH})
- endif ()
-
- set (${COMPILER_SPECIFIC_FLAGS_VARIABLE} "${compiler_flags}" PARENT_SCOPE)
-endfunction ()
-
-function (source_file_add_compiler_flags_unchecked file)
- set (flags ${ARGV})
- list (REMOVE_AT flags 0)
- get_source_file_property (sources ${file} SOURCES)
-
- foreach (flag ${flags})
- get_source_file_property (existing ${file} COMPILE_FLAGS)
- if ("${existing}" STREQUAL "NOTFOUND")
- set_source_files_properties (${file}
- PROPERTIES COMPILE_FLAGS "${flag}")
- else ()
- set_source_files_properties (${file}
- PROPERTIES COMPILE_FLAGS "${existing} ${flag}")
- endif ()
- endforeach (flag)
-endfunction ()
-
-function (source_file_add_compiler_flags file)
- set (flags ${ARGV})
- list (REMOVE_AT flags 0)
- get_source_file_property (sources ${file} SOURCES)
-
- foreach (flag ${flags})
- if ("GNU" STREQUAL "${CMAKE_C_COMPILER_ID}")
- # Because https://gcc.gnu.org/wiki/FAQ#wnowarning
- string (REGEX REPLACE "\\-Wno\\-(.+)" "-W\\1" flag_to_test "${flag}")
- else ()
- set (flag_to_test ${flag})
- endif ()
-
- if ("${file}" MATCHES "\\.c$")
- string (REGEX REPLACE "[^a-zA-Z0-9]+" "_" test_name "CFLAG_${flag_to_test}")
- CHECK_C_COMPILER_FLAG ("${ADD_COMPILER_FLAGS_PREPEND} ${flag_to_test}" ${test_name})
- elseif ("${file}" MATCHES "\\.(cpp|cc|cxx)$")
- string (REGEX REPLACE "[^a-zA-Z0-9]+" "_" test_name "CXXFLAG_${flag_to_test}")
- CHECK_CXX_COMPILER_FLAG ("${ADD_COMPILER_FLAGS_PREPEND} ${flag_to_test}" ${test_name})
- endif ()
-
- if (${test_name})
- source_file_add_compiler_flags_unchecked (${file} ${flag})
- endif ()
-
- unset (test_name)
- unset (flag_to_test)
- endforeach (flag)
-
- unset (flags)
-endfunction ()
-
-function (target_add_compiler_flags target)
- set (flags ${ARGV})
- list (REMOVE_AT flags 0)
- get_target_property (sources ${target} SOURCES)
-
- foreach (source ${sources})
- source_file_add_compiler_flags (${source} ${flags})
- endforeach (source)
-
- unset (flags)
- unset (sources)
-endfunction (target_add_compiler_flags)
-
-# global_add_compiler_flags (flag1 [flag2 [flag3 ...]]):
-#
-# This just adds the requested compiler flags to
-# CMAKE_C/CXX_FLAGS variable if they work with the compiler.
-function (global_add_compiler_flags)
- set (flags ${ARGV})
-
- foreach (flag ${flags})
- if ("GNU" STREQUAL "${CMAKE_C_COMPILER_ID}")
- # Because https://gcc.gnu.org/wiki/FAQ#wnowarning
- string (REGEX REPLACE "\\-Wno\\-(.+)" "-W\\1" flag_to_test "${flag}")
- else ()
- set (flag_to_test "${flag}")
- endif ()
-
- string (REGEX REPLACE "[^a-zA-Z0-9]+" "_" c_test_name "CFLAG_${flag_to_test}")
- CHECK_C_COMPILER_FLAG ("${ADD_COMPILER_FLAGS_PREPEND} ${flag_to_test}" ${c_test_name})
- if (${c_test_name})
- set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}")
- endif ()
- unset (c_test_name)
-
- string (REGEX REPLACE "[^a-zA-Z0-9]+" "_" cxx_test_name "CFLAG_${flag_to_test}")
- CHECK_CXX_COMPILER_FLAG ("${ADD_COMPILER_FLAGS_PREPEND} ${flag_to_test}" ${cxx_test_name})
- if (${cxx_test_name})
- set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flag}")
- endif ()
- unset (cxx_test_name)
-
- unset (flag_to_test)
- endforeach (flag)
-
- unset (flags)
-
- set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" PARENT_SCOPE)
- set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" PARENT_SCOPE)
-endfunction (global_add_compiler_flags)
\ No newline at end of file
projects / roojspacker / blobdiff