From 9e52119b594d8205161df35fc7133c75d904d5d0 Mon Sep 17 00:00:00 2001
From: Finn Behrens <me@kloenk.dev>
Date: Thu, 23 Sep 2021 12:45:25 +0200
Subject: [PATCH] update gmp-mpfr-sys to fix non gcc builds

---
 Cargo.lock |  5 ++---
 Cargo.toml |  3 +++
 flake.nix  | 10 +++++++---
 3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 49401c9..603173c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -152,9 +152,8 @@ dependencies = [
 
 [[package]]
 name = "gmp-mpfr-sys"
-version = "1.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a57fdb339d49833021b1fded600ed240ae907e33909d5511a61dff884df7f16e"
+version = "1.4.7"
+source = "git+https://gitlab.com/tspiteri/gmp-mpfr-sys.git#21966f4bfb56c87d407eb14c72e92ef4e55856aa"
 dependencies = [
  "libc",
  "winapi",
diff --git a/Cargo.toml b/Cargo.toml
index ed4a5eb..3b2e286 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,3 +1,6 @@
+[patch.crates-io]
+gmp-mpfr-sys = { git = "https://gitlab.com/tspiteri/gmp-mpfr-sys.git" }
+
 [workspace]
 members = ["kalk", "cli"]
 
diff --git a/flake.nix b/flake.nix
index c28ccc3..7f175ed 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,15 +21,19 @@
 
           src = self;
 
-          nativeBuildInputs = with final; [ gcc ];
-
           outputs = [ "out" "lib" ];
 
           postInstall = ''
             moveToOutput "lib" "$lib"
           '';
 
-          cargoLock = { lockFile = self + "/Cargo.lock"; };
+          cargoLock = {
+            lockFile = self + "/Cargo.lock";
+            outputHashes = {
+              "gmp-mpfr-sys-1.4.7" =
+                "sha256-zHpGbEgh3MgAUVdlWrXq4Clj1boybi6DMOcsjgZbAh0=";
+            };
+          };
 
           buildInputs = with final; [ gmp mpfr libmpc ];