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# Functions and macros for handling of libYAML
#
# Copyright (c) 2024 Netdata Inc.
# SPDX-License-Identifier: GPL-3.0-or-later
# Handle bundling of libyaml.
#
# This pulls it in as a sub-project using FetchContent functionality.
#
# This needs to be a function and not a macro for variable scoping
# reasons. All the things we care about from the sub-project are exposed
# as targets, which are globally scoped and not function scoped.
function(netdata_bundle_libyaml)
include(FetchContent)
include(NetdataFetchContentExtra)
if(ENABLE_BUNDLED_LIBYAML)
set(FETCHCONTENT_TRY_FIND_PACKAGE_MODE NEVER)
endif()
set(FETCHCONTENT_FULLY_DISCONNECTED Off)
FetchContent_Declare(yaml
GIT_REPOSITORY https://github.com/yaml/libyaml
GIT_TAG 2c891fc7a770e8ba2fec34fc6b545c672beb37e6 # v0.2.5
CMAKE_ARGS ${NETDATA_CMAKE_PROPAGATE_TOOLCHAIN_ARGS}
)
FetchContent_MakeAvailable_NoInstall(yaml)
endfunction()
# Handle setup of libyaml for the build.
#
# This will attempt to find libyaml using pkg_check_modules. If it finds
# a usable copy, that will be used. If not, it will bundle a vendored copy
# as a sub-project.
#
# Irrespective of how libyaml is to be included, library names,
# include directories, and compile definitions will be specified in the
# NETDATA_YAML_* variables for later use.
macro(netdata_detect_libyaml)
set(HAVE_LIBYAML True)
pkg_check_modules(YAML yaml-0.1)
if(ENABLE_BUNDLED_LIBYAML OR NOT YAML_FOUND)
netdata_bundle_libyaml()
set(ENABLE_BUNDLED_LIBYAML True PARENT_SCOPE)
set(NETDATA_YAML_LDFLAGS yaml)
get_target_property(NETDATA_YAML_INCLUDE_DIRS yaml INTERFACE_INCLUDE_DIRECTORIES)
get_target_property(NETDATA_YAML_CFLAGS_OTHER yaml INTERFACE_COMPILE_DEFINITIONS)
else()
set(NETDATA_YAML_LDFLAGS ${YAML_LDFLAGS})
set(NETDATA_YAML_CFLAGS_OTHER ${YAML_CFLAGS_OTHER})
set(NETDATA_YAML_INCLUDE_DIRS ${YAML_INCLUDE_DIRS})
endif()
endmacro()
# Add libyaml as a public link dependency of the specified target.
#
# The specified target must already exist, and the netdata_detect_libyaml
# macro must have already been run at least once for this to work correctly.
function(netdata_add_libyaml_to_target _target)
if(ENABLE_BUNDLED_LIBYAML)
target_include_directories(${_target} BEFORE PUBLIC ${NETDATA_YAML_INCLUDE_DIRS})
else()
target_include_directories(${_target} PUBLIC ${NETDATA_YAML_INCLUDE_DIRS})
endif()
target_compile_options(${_target} PUBLIC ${NETDATA_YAML_CFLAGS_OTHER})
target_link_libraries(${_target} PUBLIC ${NETDATA_YAML_LDFLAGS})
endfunction()
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