From a3303987f0b5dedf76618bc73103ceae870bdbb8 Mon Sep 17 00:00:00 2001
From: speak-agent <248744407+speak-agent@users.noreply.github.com>
Date: Thu, 20 Aug 2026 17:00:29 +0800
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  * std-freestanding-nolibc 0.2.0 —— 五个函数 + **四份 C 头**
  * std-freestanding 0.4.0 —— nolibc feature

⭐ 障碍从来不是「子集想要 C 库」:libc++ 为 C 头带了包装头,靠 #include_next 到真正
那份去取 size_t / mbstate_t / time_t / EOF。没有 C 库时这条链无处可续,而包装头报的是
**缺类型**不是缺头 —— 所以从错误信息里看不出原因。

⚠️ 顺序是整个机制:shim 目录必须排在 libc++ **之后**。实测:放前面解锁 0 个,
放后面解锁 79 个。

九个真需要 C 库的头(cinttypes/cmath/complex/cstdlib/exception/format/print/random/
valarray)由 feature 宏摘掉,连同各自的导出表。

验证:零 libc 工程用 std::array + std::ranges::sort(带比较器)+ std::string_view,
qemu 中打印 54321 / zero-libc std ok,11156 字节,底下没有任何 C 库。
---
 pkgs/s/std-freestanding-nolibc.lua | 21 +++++++++++++++++++++
 pkgs/s/std-freestanding.lua        | 21 +++++++++++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/pkgs/s/std-freestanding-nolibc.lua b/pkgs/s/std-freestanding-nolibc.lua
index 32efb08..3848eac 100644
--- a/pkgs/s/std-freestanding-nolibc.lua
+++ b/pkgs/s/std-freestanding-nolibc.lua
@@ -44,6 +44,13 @@ package = {
                 },
                 sha256 = "8999ec9db31699569e14a9c5f0fa24f4736961b1d8aec143c4d0cc7e5a978ec0",
             },
+            ["0.2.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/std-freestanding-nolibc/archive/refs/tags/0.2.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/std-freestanding-nolibc/releases/download/0.2.0/std-freestanding-nolibc-0.2.0.tar.gz",
+                },
+                sha256 = "8e3509752d0a13411b5eabf64c3b9420cf904bbc7bba9e1ab0bd8f16b69e7afd",
+            },
         },
         macosx = {
             ["0.1.0"] = {
@@ -60,6 +67,13 @@ package = {
                 },
                 sha256 = "8999ec9db31699569e14a9c5f0fa24f4736961b1d8aec143c4d0cc7e5a978ec0",
             },
+            ["0.2.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/std-freestanding-nolibc/archive/refs/tags/0.2.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/std-freestanding-nolibc/releases/download/0.2.0/std-freestanding-nolibc-0.2.0.tar.gz",
+                },
+                sha256 = "8e3509752d0a13411b5eabf64c3b9420cf904bbc7bba9e1ab0bd8f16b69e7afd",
+            },
         },
         windows = {
             ["0.1.0"] = {
@@ -76,6 +90,13 @@ package = {
                 },
                 sha256 = "8999ec9db31699569e14a9c5f0fa24f4736961b1d8aec143c4d0cc7e5a978ec0",
             },
+            ["0.2.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/std-freestanding-nolibc/archive/refs/tags/0.2.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/std-freestanding-nolibc/releases/download/0.2.0/std-freestanding-nolibc-0.2.0.tar.gz",
+                },
+                sha256 = "8e3509752d0a13411b5eabf64c3b9420cf904bbc7bba9e1ab0bd8f16b69e7afd",
+            },
         },
     },
 
diff --git a/pkgs/s/std-freestanding.lua b/pkgs/s/std-freestanding.lua
index 446c9c2..12bc74d 100644
--- a/pkgs/s/std-freestanding.lua
+++ b/pkgs/s/std-freestanding.lua
@@ -64,6 +64,13 @@ package = {
                 },
                 sha256 = "8cd1687b2a02a53729fe8d97319b862f92a9c00ae2fb51985332fdbe0c1332c2",
             },
+            ["0.4.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/std-freestanding/archive/refs/tags/0.4.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/std-freestanding/releases/download/0.4.0/std-freestanding-0.4.0.tar.gz",
+                },
+                sha256 = "a0306d470f524f7ac32fca2ab46a46435a66dc0eb9b4960ada013a905f66b9a6",
+            },
         },
         macosx = {
             ["0.2.0"] = {
@@ -94,6 +101,13 @@ package = {
                 },
                 sha256 = "8cd1687b2a02a53729fe8d97319b862f92a9c00ae2fb51985332fdbe0c1332c2",
             },
+            ["0.4.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/std-freestanding/archive/refs/tags/0.4.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/std-freestanding/releases/download/0.4.0/std-freestanding-0.4.0.tar.gz",
+                },
+                sha256 = "a0306d470f524f7ac32fca2ab46a46435a66dc0eb9b4960ada013a905f66b9a6",
+            },
         },
         windows = {
             ["0.2.0"] = {
@@ -124,6 +138,13 @@ package = {
                 },
                 sha256 = "8cd1687b2a02a53729fe8d97319b862f92a9c00ae2fb51985332fdbe0c1332c2",
             },
+            ["0.4.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/std-freestanding/archive/refs/tags/0.4.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/std-freestanding/releases/download/0.4.0/std-freestanding-0.4.0.tar.gz",
+                },
+                sha256 = "a0306d470f524f7ac32fca2ab46a46435a66dc0eb9b4960ada013a905f66b9a6",
+            },
         },
     },