From b8e3135c71e8dd9b1d05b5a7b4d61215d5066770 Mon Sep 17 00:00:00 2001
From: Reno Dakota <paparodeo@proton.me>
Date: Sat, 9 Nov 2024 19:46:41 -0800
Subject: [PATCH] xsimd: reduce precision to fix asin test

`asin` test fails on darwin with clang-19. reduce the test precision
epsilon to 1e-7 fixes the test
---
 pkgs/by-name/xs/xsimd/package.nix               |  3 +++
 pkgs/by-name/xs/xsimd/relax-asin-precision.diff | 14 ++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 pkgs/by-name/xs/xsimd/relax-asin-precision.diff

diff --git a/pkgs/by-name/xs/xsimd/package.nix b/pkgs/by-name/xs/xsimd/package.nix
index 622f11f400bc6..ad806a6a7d468 100644
--- a/pkgs/by-name/xs/xsimd/package.nix
+++ b/pkgs/by-name/xs/xsimd/package.nix
@@ -26,6 +26,9 @@ stdenv.mkDerivation (finalAttrs: {
   ] ++ lib.optionals stdenv.hostPlatform.isDarwin [
     # https://github.com/xtensor-stack/xsimd/issues/1030
     ./disable-test_error_gamma.patch
+
+    # https://github.com/xtensor-stack/xsimd/issues/1063
+    ./relax-asin-precision.diff
   ];
 
   # strictDeps raises the chance that xsimd will be able to be cross compiled
diff --git a/pkgs/by-name/xs/xsimd/relax-asin-precision.diff b/pkgs/by-name/xs/xsimd/relax-asin-precision.diff
new file mode 100644
index 0000000000000..7623f6e81e4a0
--- /dev/null
+++ b/pkgs/by-name/xs/xsimd/relax-asin-precision.diff
@@ -0,0 +1,14 @@
+diff --git a/test/test_xsimd_api.cpp b/test/test_xsimd_api.cpp
+index f416ae9..1f8253e 100644
+--- a/test/test_xsimd_api.cpp
++++ b/test/test_xsimd_api.cpp
+@@ -468,7 +468,8 @@ struct xsimd_api_float_types_functions
+     void test_asin()
+     {
+         value_type val(1);
+-        CHECK_EQ(extract(xsimd::asin(T(val))), std::asin(val));
++        CHECK(extract(xsimd::asin(T(val)))
++              == doctest::Approx(std::asin(val)).epsilon(1e-7));
+     }
+     void test_asinh()
+     {