From ab3dec4efda1008c8a09e264d0fcd949aa245b04 Mon Sep 17 00:00:00 2001
From: Aleksi Hannula <ahannula4+nixgit@gmail.com>
Date: Thu, 9 Apr 2026 11:58:46 +0300
Subject: [PATCH] minimal-bootstrap.libmpfr: init at 4.2.2

---
 .../linux/minimal-bootstrap/default.nix       |  6 ++
 .../linux/minimal-bootstrap/gcc/mpfr.nix      | 71 +++++++++++++++++++
 2 files changed, 77 insertions(+)
 create mode 100644 pkgs/os-specific/linux/minimal-bootstrap/gcc/mpfr.nix

diff --git a/pkgs/os-specific/linux/minimal-bootstrap/default.nix b/pkgs/os-specific/linux/minimal-bootstrap/default.nix
index 6e0ff3eb8551..7f11a5add96f 100644
--- a/pkgs/os-specific/linux/minimal-bootstrap/default.nix
+++ b/pkgs/os-specific/linux/minimal-bootstrap/default.nix
@@ -281,6 +281,12 @@ lib.makeScope
           gnutar = gnutar-latest;
         };
 
+        libmpfr = callPackage ./gcc/mpfr.nix {
+          gcc = gcc-latest;
+          gnumake = gnumake-musl;
+          gnutar = gnutar-latest;
+        };
+
         linux-headers = callPackage ./linux-headers {
           gcc = gcc-latest;
           gnumake = gnumake-musl;
diff --git a/pkgs/os-specific/linux/minimal-bootstrap/gcc/mpfr.nix b/pkgs/os-specific/linux/minimal-bootstrap/gcc/mpfr.nix
new file mode 100644
index 000000000000..11807a44350f
--- /dev/null
+++ b/pkgs/os-specific/linux/minimal-bootstrap/gcc/mpfr.nix
@@ -0,0 +1,71 @@
+{
+  lib,
+  buildPlatform,
+  hostPlatform,
+  fetchurl,
+  bash,
+  gcc,
+  binutils,
+  gnumake,
+  gnused,
+  gnugrep,
+  gawk,
+  diffutils,
+  findutils,
+  gnutar,
+  xz,
+  libgmp,
+}:
+let
+  pname = "mpfr";
+  version = "4.2.2";
+
+  src = fetchurl {
+    url = "mirror://gnu/mpfr/mpfr-${version}.tar.xz";
+    hash = "sha256-tnugOD736KhWNzTi6InvXsPDuJigHQD6CmhprYHGzgE=";
+  };
+in
+bash.runCommand "${pname}-${version}"
+  {
+    inherit pname version;
+
+    nativeBuildInputs = [
+      gcc
+      binutils
+      gnumake
+      gnused
+      gnugrep
+      gawk
+      diffutils
+      findutils
+      gnutar
+      xz
+    ];
+
+    meta = {
+      description = "The GNU Multiple Precision Floating-Point Reliable Library, version ${version}";
+      homepage = "https://www.mpfr.org/";
+      license = lib.licenses.lgpl3Plus;
+      teams = [ lib.teams.minimal-bootstrap ];
+      platforms = lib.platforms.unix;
+    };
+  }
+  ''
+    # Unpack
+    tar xf ${src}
+    cd mpfr-${version}
+
+    # Configure
+    bash ./configure \
+      --prefix=$out \
+      --build=${buildPlatform.config} \
+      --host=${hostPlatform.config} \
+      --disable-dependency-tracking \
+      --with-gmp=${libgmp}
+
+    # Build
+    make -j $NIX_BUILD_CORES
+
+    # Install
+    make -j $NIX_BUILD_CORES install-strip
+  ''