From 48030f3c2f1fa4a08a28bf951e63ea89e8f6be6a Mon Sep 17 00:00:00 2001
From: Thomas Arp <357770+welcor@users.noreply.github.com>
Date: Wed, 22 Apr 2026 22:47:17 +0200
Subject: [PATCH] Only set flags on compilers that recognize them

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 tests/CMakeLists.txt | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 1027283..64b1b7b 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -34,11 +34,14 @@ set(TEST_INCLUDES
 
 # Suppress warnings that fire in generated stubs / vendored code and in the
 # mud sources when compiled outside their normal full-build context.
-set(TEST_CFLAGS
-    -Wno-unused-parameter
-    -Wno-unused-function
-    -Wno-unused-variable
-)
+set(TEST_CFLAGS)
+if(CMAKE_C_COMPILER_ID MATCHES "^(GNU|Clang|AppleClang)$")
+    list(APPEND TEST_CFLAGS
+        -Wno-unused-parameter
+        -Wno-unused-function
+        -Wno-unused-variable
+    )
+endif()
 
 # Helper macro: add_mud_test(name SRC1 [SRC2 …])
 # Creates an executable, registers it with CTest.