s2n-tls: add package (#2602)

* s2n-tls: add package

* disable plat

packages/s/s2n-tls/xmake.lua

@@ -0,0 +1,37 @@
+package("s2n-tls")
+    set_homepage("https://aws.github.io/s2n-tls/doxygen/s2n_8h.html")
+    set_description("An implementation of the TLS/SSL protocols")
+    set_license("Apache-2.0")
+
+    add_urls("https://github.com/aws/s2n-tls/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/aws/s2n-tls.git")
+
+    add_versions("v1.3.51", "75c650493c42dddafd5dec6a42f2258ab52e501719ee5a337ec580cc958ea67a")
+
+    add_configs("pq", {description = [[Enables all Post Quantum Crypto code. You likely want this
+    for older compilers or uncommon platforms.]], default = false, type = "boolean"})
+    add_configs("pq_asm", {description = [[Turns on the ASM for PQ Crypto even if it's available for the toolchain. You likely want this on older compilers.]], default = false, type = "boolean"})
+    add_configs("stacktrace", {description = [[Enables stacktrace functionality in s2n-tls. Note that this functionality is
+    only available on platforms that support execinfo.]], default = false, type = "boolean"})
+
+    if is_plat("linux", "bsd") then
+        add_syslinks("m", "pthread")
+    end
+
+    add_deps("cmake", "openssl")
+
+    on_install("linux", "bsd", "cross", function (package)
+        local configs = {"-DBUILD_TESTING=OFF", "-DUNSAFE_TREAT_WARNINGS_AS_ERRORS=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"))
+        table.insert(configs, "-DS2N_LTO=" .. (package:config("lto") and "ON" or "OFF"))
+
+        table.insert(configs, "-DS2N_NO_PQ=" .. (package:config("pq") and "OFF" or "ON"))
+        table.insert(configs, "-DS2N_NO_PQ_ASM=" .. (package:config("pq_asm") and "OFF" or "ON"))
+        table.insert(configs, "-DS2N_STACKTRACE=" .. (package:config("stacktrace") and "ON" or "OFF"))
+        import("package.tools.cmake").install(package, configs)
+    end)
+
+    on_test(function (package)
+        assert(package:has_cfuncs("s2n_connection_new", {includes = "s2n.h"}))
+    end)