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CMake: Add explicit check for atomic lib, and link it if necessary

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reuk 2020-09-22 15:51:06 +01:00
parent 23bc385864
commit f51db729c0
3 changed files with 88 additions and 0 deletions
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1
CMakeLists.txt
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@ -125,6 +125,7 @@ configure_package_config_file("${JUCE_CMAKE_UTILS_DIR}/JUCEConfig.cmake.in"
install(FILES "${JUCE_BINARY_DIR}/JUCEConfigVersion.cmake"
"${JUCE_BINARY_DIR}/JUCEConfig.cmake"
"${JUCE_CMAKE_UTILS_DIR}/JUCEHelperTargets.cmake"
"${JUCE_CMAKE_UTILS_DIR}/JUCECheckAtomic.cmake"
"${JUCE_CMAKE_UTILS_DIR}/JUCEUtils.cmake"
"${JUCE_CMAKE_UTILS_DIR}/LaunchScreen.storyboard"
"${JUCE_CMAKE_UTILS_DIR}/PIPAudioProcessor.cpp.in"

82
extras/Build/CMake/JUCECheckAtomic.cmake Normal file
View file

@ -0,0 +1,82 @@
# ==============================================================================
#
# This file is part of the JUCE library.
# Copyright (c) 2020 - Raw Material Software Limited
#
# JUCE is an open source library subject to commercial or open-source
# licensing.
#
# By using JUCE, you agree to the terms of both the JUCE 6 End-User License
# Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
#
# End User License Agreement: www.juce.com/juce-6-licence
# Privacy Policy: www.juce.com/juce-privacy-policy
#
# Or: You may also use this code under the terms of the GPL v3 (see
# www.gnu.org/licenses).
#
# JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
# EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
# DISCLAIMED.
#
# ==============================================================================
function(_juce_create_atomic_target target_name)
add_library("${target_name}" INTERFACE)
add_library("juce::${target_name}" ALIAS "${target_name}")
if(NOT (CMAKE_SYSTEM_NAME STREQUAL "Linux"))
return()
endif()
set(test_file_contents
[[
#include <atomic>
int main (int argc, char** argv)
{
std::atomic<long long> ll { static_cast<long long> (argc) };
ll ^= 1;
return static_cast<int> (ll);
}
]])
string(RANDOM LENGTH 16 random_file_string)
set(test_file_name "${CMAKE_CURRENT_BINARY_DIR}/check_atomic_${random_file_string}.cpp")
string(RANDOM LENGTH 16 random_dir_string)
set(test_bindir "${CMAKE_CURRENT_BINARY_DIR}/check_atomic_dir_${random_dir_string}")
file(WRITE "${test_file_name}" "${test_file_contents}")
try_compile(compile_result "${test_bindir}" "${test_file_name}"
OUTPUT_VARIABLE test_build_output_0
CXX_STANDARD 11
CXX_STANDARD_REQUIRED TRUE
CXX_EXTENSIONS FALSE)
if(NOT compile_result)
try_compile(compile_result "${test_bindir}" "${test_file_name}"
OUTPUT_VARIABLE test_build_output_1
LINK_LIBRARIES atomic
CXX_STANDARD 11
CXX_STANDARD_REQUIRED TRUE
CXX_EXTENSIONS FALSE)
if (NOT compile_result)
message(FATAL_ERROR
"First build output:\n"
"${test_build_output_0}"
"\n\nSecond build output:\n"
"${test_build_output_1}"
"\n\nJUCE requires support for std::atomic, but this system cannot "
"successfully compile a program which uses std::atomic. "
"You may need to install a dedicated libatomic package using your "
"system's package manager.")
endif()
target_link_libraries("${target_name}" INTERFACE atomic)
endif()
file(REMOVE "${test_file_name}")
endfunction()

5
extras/Build/CMake/JUCEUtils.cmake
View file

@ -123,6 +123,9 @@ set(JUCE_CMAKE_UTILS_DIR ${CMAKE_CURRENT_LIST_DIR}
CACHE INTERNAL "The path to the folder holding this file and other resources")
include("${JUCE_CMAKE_UTILS_DIR}/JUCEHelperTargets.cmake")
include("${JUCE_CMAKE_UTILS_DIR}/JUCECheckAtomic.cmake")
_juce_create_atomic_target(juce_atomic_wrapper)
# Tries to discover the target platform architecture, which is necessary for
# naming VST3 bundle folders correctly.
@ -518,6 +521,8 @@ function(juce_add_module module_path)
if(${module_name} STREQUAL "juce_core")
_juce_add_standard_defs(${module_name})
target_link_libraries(juce_core INTERFACE juce::juce_atomic_wrapper)
if(CMAKE_SYSTEM_NAME STREQUAL "Android")
target_sources(juce_core INTERFACE "${ANDROID_NDK}/sources/android/cpufeatures/cpu-features.c")
target_include_directories(juce_core INTERFACE "${ANDROID_NDK}/sources/android/cpufeatures")