gperftools: add option to use libunwind. (#1588)

* gperftools: add option to use libunwind.

* gperftools: build only shared lib for windows.

packages/g/gperftools/xmake.lua

@@ -7,13 +7,26 @@ package("gperftools")
     add_urls("https://github.com/gperftools/gperftools/archive/refs/tags/gperftools-$(version).tar.gz")
     add_versions("2.10", "b0dcfe3aca1a8355955f4b415ede43530e3bb91953b6ffdd75c45891070fe0f1")
 
-    add_configs("shared", {description = "Build shared library.", default = true, type = "boolean"})
+    add_configs("shared", {description = "Build shared library.", default = true, type = "boolean", readonly = is_plat("windows")})
+    if is_plat("linux") then
+        add_configs("unwind", {description = "Enable libunwind support.", default = false, type = "boolean"})
+    end
 
     add_deps("cmake")
+
+    on_load("linux", function (package)
+        if package:config("unwind") then
+            package:add("deps", "libunwind")
+        end
+    end)
+
     on_install("windows", "macosx", "linux", function (package)
         local configs = {"-DBUILD_TESTING=OFF", "-Dgperftools_build_benchmark=OFF"}
         table.insert(configs, "-DCMAKE_BUILD_TYPE=" .. (package:debug() and "Debug" or "Release"))
         table.insert(configs, "-DGPERFTOOLS_BUILD_STATIC=" .. (package:config("shared") and "OFF" or "ON"))
+        if package:is_plat("linux") then
+            table.insert(configs, "-Dgperftools_enable_libunwind=" .. (package:config("unwind") and "ON" or "OFF"))
+        end
         import("package.tools.cmake").install(package, configs)
     end)