From 44ecb9f8c1ef1bbb82d0a5814ba4b7cddc40ed35 Mon Sep 17 00:00:00 2001
From: Hanif Koh <hanifkoh@outlook.com>
Date: Tue, 20 Oct 2026 16:55:11 +0800
Subject: [PATCH] Use the OrcaSlicer_deps Mirror as the GMP Fallback Download

SoftFever published gmp-6.3.0.tar.xz in SoftFever/OrcaSlicer_deps, the
same mirror 6.2.1 came from. Both sources serve the .tar.xz release file,
byte-identical (one SHA-256): the GNU server first, the mirror as fallback.
---
 deps/GMP/GMP.cmake | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/deps/GMP/GMP.cmake b/deps/GMP/GMP.cmake
index 06d1665cb7..4f2beedb4f 100644
--- a/deps/GMP/GMP.cmake
+++ b/deps/GMP/GMP.cmake
@@ -63,9 +63,9 @@ else ()
     # reserves and zeroes on every return to user space; 6.2.1 crashes on Apple
     # silicon whenever CGAL falls back to exact arithmetic.
     ExternalProject_Add(dep_GMP
-        URL https://ftp.gnu.org/gnu/gmp/gmp-6.3.0.tar.bz2
-            https://gmplib.org/download/gmp/gmp-6.3.0.tar.bz2
-        URL_HASH SHA256=ac28211a7cfb609bae2e2c8d6058d66c8fe96434f740cf6fe2e47b000d1c20cb
+        URL https://ftp.gnu.org/gnu/gmp/gmp-6.3.0.tar.xz
+            https://github.com/SoftFever/OrcaSlicer_deps/releases/download/gmp-6.3.0/gmp-6.3.0.tar.xz
+        URL_HASH SHA256=a3c2b80201b89e68616f4ad30bc66aee4927c3ce50e33929ca819d5c43538898
         DOWNLOAD_DIR ${DEP_DOWNLOAD_DIR}/GMP
         PATCH_COMMAND git apply ${GMP_DIRECTORY_FLAG} --verbose ${CMAKE_CURRENT_LIST_DIR}/0001-GMP_GCC15.patch
         BUILD_IN_SOURCE ON