From f112450ea0d5d1784e24f6b4aae4212700f566c1 Mon Sep 17 00:00:00 2001
From: Raul Tambre <raul@tambre.ee>
Date: Sat, 13 Feb 2021 10:12:12 +0200
Subject: [PATCH] Clang: C flags cleanup
Don't need to set the options to empty strings if not supported.
---
Modules/Compiler/Clang-C.cmake | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/Modules/Compiler/Clang-C.cmake b/Modules/Compiler/Clang-C.cmake
index 5609abf47e..e905909675 100644
--- a/Modules/Compiler/Clang-C.cmake
+++ b/Modules/Compiler/Clang-C.cmake
@@ -26,31 +26,29 @@ elseif("x${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "xGNU")
endif()
if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 3.4)
+ set(CMAKE_C90_STANDARD__HAS_FULL_SUPPORT ON)
+ set(CMAKE_C99_STANDARD__HAS_FULL_SUPPORT ON)
+ set(CMAKE_C11_STANDARD__HAS_FULL_SUPPORT ON)
+
if(NOT "x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC")
set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90")
set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90")
- set(CMAKE_C90_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99")
set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99")
- set(CMAKE_C99_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11")
set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11")
- set(CMAKE_C11_STANDARD__HAS_FULL_SUPPORT ON)
else()
# clang-cl doesn't have any of these
set(CMAKE_C90_STANDARD_COMPILE_OPTION "")
set(CMAKE_C90_EXTENSION_COMPILE_OPTION "")
- set(CMAKE_C90_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_C99_STANDARD_COMPILE_OPTION "")
set(CMAKE_C99_EXTENSION_COMPILE_OPTION "")
- set(CMAKE_C99_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_C11_STANDARD_COMPILE_OPTION "")
set(CMAKE_C11_EXTENSION_COMPILE_OPTION "")
- set(CMAKE_C11_STANDARD__HAS_FULL_SUPPORT ON)
endif()
endif()
--
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