xxhash: Support shared build (#6151)

* xxhash: Support shared build

* fix cmake dispatch

packages/x/xxhash/xmake.lua

@@ -1,27 +1,59 @@
 package("xxhash")
-
     set_homepage("http://cyan4973.github.io/xxHash/")
     set_description("xxHash is an extremely fast non-cryptographic hash algorithm, working at RAM speed limit.")
     set_license("BSD-2-Clause")
 
     add_urls("https://github.com/Cyan4973/xxHash/archive/refs/tags/$(version).tar.gz",
              "https://github.com/Cyan4973/xxHash.git")
+
     add_versions("v0.8.3", "aae608dfe8213dfd05d909a57718ef82f30722c392344583d3f39050c7f29a80")
     add_versions("v0.8.2", "baee0c6afd4f03165de7a4e67988d16f0f2b257b51d0e3cb91909302a26a79c4")
     add_versions("v0.8.1", "3bb6b7d6f30c591dd65aaaff1c8b7a5b94d81687998ca9400082c739a690436c")
     add_versions("v0.8.0", "7054c3ebd169c97b64a92d7b994ab63c70dd53a06974f1f630ab782c28db0f4f")
 
-    add_configs("shared", {description = "Build shared library.", default = false, type = "boolean", readonly = true})
+    add_configs("cmake", {description = "Use cmake buildsystem", default = true, type = "boolean"})
+    add_configs("dispatch", {description = "Enable dispatch mode", default = false, type = "boolean"})
+
+    on_load(function (package)
+        if package:config("cmake") then
+            package:add("deps", "cmake")
+        end
+        if package:is_plat("windows") and package:config("shared") then
+            package:add("defines", "XXH_IMPORT", "WIN32")
+        end
+    end)
 
     on_install(function (package)
-        io.writefile("xmake.lua", [[
-            add_rules("mode.debug", "mode.release")
-            target("xxhash")
-                set_kind("static")
-                add_files("xxhash.c")
-                add_headerfiles("xxhash.h", "xxh3.h")
-        ]])
-        import("package.tools.xmake").install(package)
+        if package:config("cmake") then
+            local configs = {"-DXXHASH_BUILD_XXHSUM=OFF"}
+            table.insert(configs, "-DCMAKE_BUILD_TYPE=" .. (package:is_debug() and "Debug" or "Release"))
+            table.insert(configs, "-DBUILD_SHARED_LIBS=" .. (package:config("shared") and "ON" or "OFF"))
+            if package:config("dispatch") then
+                -- if((DEFINED DISPATCH) AND (DEFINED PLATFORM))
+                table.insert(configs, "-DDISPATCH=ON")
+            end
+
+            os.cd("cmake_unofficial")
+            import("package.tools.cmake").install(package, configs)
+        else
+            io.writefile("xmake.lua", [[
+                option("dispatch", {default = false})
+                add_rules("mode.debug", "mode.release")
+                add_rules("utils.install.pkgconfig_importfiles", {filename = "libxxhash.pc"})
+                target("xxhash")
+                    set_kind("$(kind)")
+                    add_files("xxhash.c")
+                    add_headerfiles("xxhash.h", "xxh3.h")
+                    if is_plat("windows") and is_kind("shared") then
+                        add_defines("XXH_EXPORT", "WIN32")
+                    end
+                    if has_config("dispatch") then
+                        add_files("xxh_x86dispatch.c")
+                        add_headerfiles("xxh_x86dispatch.h")
+                    end
+            ]])
+            import("package.tools.xmake").install(package, {dispatch = package:config("dispatch")})
+        end
     end)
 
     on_test(function (package)