libddwaf-src 2.1.0

Source distribution and build integration for DataDog/libddwaf
Documentation
file(STRINGS "${CMAKE_CURRENT_SOURCE_DIR}/Cargo.toml" cargo_manifest_lines)
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS Cargo.toml)
set(in_package_section FALSE)
set(package_version_count 0)
foreach(line IN LISTS cargo_manifest_lines)
    if(line MATCHES "^\\[package\\][ \t]*$")
        set(in_package_section TRUE)
    elseif(line MATCHES "^\\[")
        set(in_package_section FALSE)
    elseif(in_package_section AND
            line MATCHES "^version[ \t]*=[ \t]*\"([^\"]+)\"[ \t]*$")
        set(version "${CMAKE_MATCH_1}")
        math(EXPR package_version_count "${package_version_count} + 1")
    endif()
endforeach()
if(NOT package_version_count EQUAL 1)
    message(FATAL_ERROR "Expected exactly one package version in Cargo.toml")
endif()

string(REGEX REPLACE "-(alpha|beta)[0-9]*$" "" mmp_version ${version})