gzip-hpp: add package (#3303)

* gzip-hpp: add package

* gzip-hpp: add stdint

packages/g/gzip-hpp/xmake.lua

@@ -0,0 +1,37 @@
+package("gzip-hpp")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/mapbox/gzip-hpp")
+    set_description("Gzip header-only C++ library")
+    set_license("MIT")
+
+    add_urls("https://github.com/mapbox/gzip-hpp/archive/$(version).tar.gz",
+             "https://github.com/mapbox/gzip-hpp.git")
+
+    add_versions("v0.1.0", "7ce3908cd13f186987820be97083fc5e62a7c6df0877af44b334a92e868eff06")
+
+    add_deps("zlib")
+   
+    on_install(function (package)
+        io.replace("include/gzip/utils.hpp", "#include <cstdlib>", "#include <cstdlib>\n#include <stdint.h>", {plain = true})
+        os.cp("include", package:installdir())
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <gzip/compress.hpp>
+            #include <gzip/decompress.hpp>
+            #include <gzip/utils.hpp>
+            #include <cassert>
+            
+            void test() {
+                const std::string data("Hello World");
+                for (int level = Z_BEST_SPEED; level <= Z_BEST_COMPRESSION; ++level)
+                {
+                    std::string compressed_data = gzip::compress(data.data(), data.size());
+                    assert(gzip::is_compressed(compressed_data.data(), compressed_data.size()));
+                    std::string new_data = gzip::decompress(compressed_data.data(), compressed_data.size());
+                    assert(data == new_data);
+                }
+            }
+        ]]}, {configs = {languages = "cxx11"}}))
+    end)