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lazkalazka
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Add libsass 3.6.4
This is a direct copy of https://github.com/lazka/libsass/tree/meson which I've created for gtk back in the days. There is an open PR for adding meson support upstream in sass/libsass#3073 but the project is considered deprecated and hasn't seen a commit in over a year, so there is not much hope for progress there. There is a newer 3.6.5 release out, but I wanted to copy things as is from my fork first and look at updating it later.
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‎releases.json

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"1.6.17-2"
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]
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},
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"libsass": {
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"dependency_names": [
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"libsass"
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],
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"versions": [
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"3.6.4-1"
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]
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},
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"libsndfile": {
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"dependency_names": [
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"sndfile"

‎subprojects/libsass.wrap

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[wrap-file]
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directory = libsass-3.6.4
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source_url = https://github.com/sass/libsass/archive/refs/tags/3.6.4.tar.gz
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source_filename = libsass-3.6.4.tar.gz
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source_hash = f9484d9a6df60576e791566eab2f757a97fd414fce01dd41fc0a693ea5db2889
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patch_directory = libsass
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[provide]
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libsass = libsass_dep

‎subprojects/packagefiles/libsass/include/meson.build

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install_headers('sass.h', 'sass2scss.h')
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version_conf_data = configuration_data()
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version_conf_data.set('PACKAGE_VERSION', meson.project_version())
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version_h = configure_file(
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input: 'sass/version.h.in',
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output: 'version.h',
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configuration: version_conf_data)
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install_headers(
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'sass/base.h', 'sass/context.h', 'sass/functions.h', 'sass/values.h',
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version_h,
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subdir: 'sass')

‎subprojects/packagefiles/libsass/meson.build

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project('libsass', 'c', 'cpp',
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version: '3.6.4',
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meson_version : '>= 0.48.0',
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default_options: [
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'c_std=c99',
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'cpp_std=c++11',
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'buildtype=debugoptimized',
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])
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add_project_arguments(
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'-DLIBSASS_VERSION="@0@"'.format(meson.project_version()),
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language: ['cpp'])
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cpp = meson.get_compiler('cpp')
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if cpp.get_id() != 'msvc'
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add_project_arguments(
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cpp.get_supported_arguments(['-Wno-non-virtual-dtor']),
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language: ['cpp'])
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endif
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inc = include_directories('include')
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winres_path = files(join_paths('res', 'resource.rc'))
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subdir('include')
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subdir('src')

‎subprojects/packagefiles/libsass/src/meson.build

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cpp_sources = [
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'ast.cpp',
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'ast_values.cpp',
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'ast_supports.cpp',
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'ast_sel_cmp.cpp',
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'ast_sel_unify.cpp',
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'ast_sel_super.cpp',
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'ast_sel_weave.cpp',
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'ast_selectors.cpp',
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'context.cpp',
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'constants.cpp',
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'fn_utils.cpp',
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'fn_miscs.cpp',
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'fn_maps.cpp',
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'fn_lists.cpp',
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'fn_colors.cpp',
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'fn_numbers.cpp',
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'fn_strings.cpp',
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'fn_selectors.cpp',
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'color_maps.cpp',
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'environment.cpp',
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'ast_fwd_decl.cpp',
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'bind.cpp',
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'file.cpp',
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'util.cpp',
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'util_string.cpp',
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'json.cpp',
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'units.cpp',
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'values.cpp',
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'plugins.cpp',
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'source.cpp',
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'position.cpp',
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'lexer.cpp',
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'parser.cpp',
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'parser_selectors.cpp',
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'prelexer.cpp',
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'eval.cpp',
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'eval_selectors.cpp',
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'expand.cpp',
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'listize.cpp',
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'cssize.cpp',
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'extender.cpp',
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'extension.cpp',
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'stylesheet.cpp',
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'output.cpp',
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'inspect.cpp',
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'emitter.cpp',
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'check_nesting.cpp',
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'remove_placeholders.cpp',
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'sass.cpp',
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'sass_values.cpp',
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'sass_context.cpp',
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'sass_functions.cpp',
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'sass2scss.cpp',
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'backtrace.cpp',
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'operators.cpp',
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'ast2c.cpp',
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'c2ast.cpp',
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'to_value.cpp',
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'source_map.cpp',
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'error_handling.cpp',
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'memory/allocator.cpp',
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'memory/shared_ptr.cpp',
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'utf8_string.cpp',
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'base64vlq.cpp',
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]
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c_sources = [
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'cencode.c',
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]
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sass_sources = cpp_sources + c_sources
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if host_machine.system() == 'windows'
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windows = import('windows')
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sass_sources += [windows.compile_resources(winres_path)]
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endif
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dl_dep = cpp.find_library('dl', required : false)
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libsass = shared_library(
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'sass',
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sass_sources,
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dependencies: [dl_dep],
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c_args: ['-DADD_EXPORTS'],
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cpp_args: ['-DADD_EXPORTS'],
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include_directories: inc,
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install: true)
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libsass_dep = declare_dependency(
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link_with: libsass,
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include_directories: [inc])
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conf_data = configuration_data()
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conf_data.set('prefix', get_option('prefix'))
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conf_data.set('exec_prefix', '${prefix}')
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conf_data.set('libdir', join_paths('${exec_prefix}', get_option('libdir')))
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conf_data.set('includedir', join_paths('${prefix}', get_option('includedir')))
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conf_data.set('VERSION', meson.project_version())
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pkg_install_dir = join_paths(get_option('libdir'), 'pkgconfig')
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configure_file(
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input: 'support/libsass.pc.in',
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output: 'libsass.pc',
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configuration: conf_data,
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install_dir: pkg_install_dir)

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