Add guetzli (#783)

packages/g/guetzli/xmake.lua

@@ -0,0 +1,41 @@
+package("guetzli")
+
+    set_homepage("https://github.com/google/guetzli")
+    set_description("Perceptual JPEG encoder")
+
+    add_urls("https://github.com/google/guetzli/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/google/guetzli.git")
+
+    add_versions("v1.0.1", "e52eb417a5c0fb5a3b08a858c8d10fa797627ada5373e203c196162d6a313697")
+
+    add_deps("libpng")
+    on_install(function (package)
+        io.writefile("xmake.lua", [[
+            add_rules("mode.debug", "mode.release")
+            add_requires("libpng")
+            target("guetzli_lib")
+                set_kind("$(kind)")
+                add_files("guetzli/*.cc|guetzli")
+                add_files("third_party/butteraugli/butteraugli/butteraugli.cc")
+                add_packages("libpng")
+                add_headerfiles("(guetzli/*.h)")
+                add_headerfiles("third_party/butteraugli/(butteraugli/*.h)")
+                add_includedirs("third_party/butteraugli", ".")
+                set_languages("c99", "c++17")
+                if is_plat("windows") and is_kind("shared") then
+                    add_rules("utils.symbols.export_all", {export_classes = true})
+                end
+        ]])
+        import("package.tools.xmake").install(package, {buildir = "xmake_build"})
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            void test() {
+                using namespace guetzli;
+                std::string output;
+                Params param;
+                Process(param, nullptr, "", &output);
+            }
+        ]]}, {configs = {languages = "c++17"}, includes = "guetzli/processor.h"}))
+    end)