From 2f98fceb780149f7cd95afdf748f3a74d78144fb Mon Sep 17 00:00:00 2001
From: Reinhold Gschweicher <pyro4hell@gmail.com>
Date: Fri, 6 Jun 2025 14:24:12 +0200
Subject: [PATCH] OpenBLAS: silence warnings

The OpenBLAS build has uncountable many warnings. Disable them as we
don't need them. Only errors are really interesting.
---
 cmake/projects/OpenBLAS/hunter.cmake | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/cmake/projects/OpenBLAS/hunter.cmake b/cmake/projects/OpenBLAS/hunter.cmake
index 89fb5dd6bf..d5c092229c 100644
--- a/cmake/projects/OpenBLAS/hunter.cmake
+++ b/cmake/projects/OpenBLAS/hunter.cmake
@@ -115,12 +115,21 @@ else()
     # https://github.com/xianyi/OpenBLAS/releases/tag/v0.3.21
     set(_openblas_BUILD_WITHOUT_LAPACK "OFF")
   endif()
+  # silence warnings on OpenBLAS build
+  if(CMAKE_C_COMPILER_ID STREQUAL "Clang" OR CMAKE_C_COMPILER_ID STREQUAL "GNU")
+    set(_openblas_cflags "CMAKE_C_FLAGS=-w")
+  elseif(MSVC)
+    set(_openblas_cflags "CMAKE_C_FLAGS=/W0")
+  else()
+    set(_openblas_cflags)
+  endif()
   hunter_cmake_args(
     OpenBLAS
     CMAKE_ARGS
     BUILD_TESTING=OFF
     NOFORTRAN=1
     BUILD_WITHOUT_LAPACK=${_openblas_BUILD_WITHOUT_LAPACK}
+    ${_openblas_cflags}
   )
   hunter_pick_scheme(DEFAULT url_sha1_cmake)
   set(_openblas_unrelocatable_text_files "")