From fdcece77e745873eb979d2861970bccaad163635 Mon Sep 17 00:00:00 2001
From: Kefu Chai <kchai@redhat.com>
Date: Thu, 4 Mar 2021 16:46:05 +0800
Subject: [PATCH] cmake: do not pass "-fdiagnostics-color" to as

this option can be understood by GCC. see
https://gcc.gnu.org/onlinedocs/gcc/Diagnostic-Message-Formatting-Options.html

Signed-off-by: Kefu Chai <kchai@redhat.com>
---
 src/CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3572cb3fb4e8..1b45100eac8f 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -187,7 +187,9 @@ set(DIAGNOSTICS_COLOR "auto"
   CACHE STRING "Used if the C/C++ compiler supports the -fdiagnostics-color option. May have one of three values -- 'auto' (default), 'always', or 'never'. If set to 'always' and the compiler supports the option, 'make [...] | less -R' will make visible diagnostics colorization of compiler output.")
 
 if(COMPILER_SUPPORTS_DIAGNOSTICS_COLOR)
-  add_compile_options(-fdiagnostics-color=${DIAGNOSTICS_COLOR})
+  add_compile_options(
+    "$<$<COMPILE_LANGUAGE:C>:-fdiagnostics-color=${DIAGNOSTICS_COLOR}>"
+    "$<$<COMPILE_LANGUAGE:CXX>:-fdiagnostics-color=${DIAGNOSTICS_COLOR}>")
 endif()
 
 set(EXTRALIBS ${CMAKE_DL_LIBS})
-- 
2.47.3