From 56d2559caee08c52a7c6e097ea38a7f4b7d40c4a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mikkel=20Fahn=C3=B8e=20J=C3=B8rgensen?= <mikkel@dvide.com>
Date: Tue, 12 Mar 2024 14:58:17 +0100
Subject: [PATCH] Disable ICC compiler warnings

---
 CMakeLists.txt | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cb6715a9..69c5b2c9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -281,8 +281,16 @@ elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU")
     endif()
 
 elseif (CMAKE_C_COMPILER_ID STREQUAL "Intel")
-    message(STATUS "Setting Intel C compiler options")
+    message(STATUS "Setting Intel C (ICC) compiler options")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11 -Wall -Wextra")
+    # warning #169: expected a declaration
+    # Fallthrough attribute does not like semicolon.
+    # this is fixed in Intel ICC 2021.5.0, but we only have 2021.4.0 in current CI build.
+    # warning #279: controlling expression is constant
+    # We have these everywhere in flatcc generated code.
+    # warning #188: enumerated type mixed with another type
+    # This is not very noisy, but still annoying, e.g. when zeroing an enum.
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -wd169 -wd279 -wd188")
 elseif (MSVC) # using STREQUAL here conflicts with string interpretation changes in CMake
     message(STATUS "Setting MSVC C compiler options")
     # -DFLATCC_PORTABLE also required, but set earlier