From 6ce97c2248ca62f7154f6b3eb44119b2a010aa87 Mon Sep 17 00:00:00 2001
From: Yuichiro Utsumi <utsumi.yuichiro@jp.fujitsu.com>
Date: Tue, 29 Jun 2021 08:32:45 +0000
Subject: FujitsuClang: Change LTO option from -flto=thin to -flto

Since -flto=thin is not supported officially in FujitsuClang,
change to -flto.
---
 Modules/Compiler/Clang.cmake | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Modules/Compiler/Clang.cmake b/Modules/Compiler/Clang.cmake
index 7035d93..f885eb0 100644
--- a/Modules/Compiler/Clang.cmake
+++ b/Modules/Compiler/Clang.cmake
@@ -56,6 +56,7 @@ else()
     set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES)
 
     string(COMPARE EQUAL "${CMAKE_${lang}_COMPILER_ID}" "AppleClang" __is_apple_clang)
+    string(COMPARE EQUAL "${CMAKE_${lang}_COMPILER_ID}" "FujitsuClang" __is_fujitsu_clang)
 
     # '-flto=thin' available since Clang 3.9 and Xcode 8
     # * http://clang.llvm.org/docs/ThinLTO.html#clang-llvm
@@ -65,6 +66,8 @@ else()
       if(CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 8.0)
         set(_CMAKE_LTO_THIN FALSE)
       endif()
+    elseif(__is_fujitsu_clang)
+      set(_CMAKE_LTO_THIN FALSE)
     else()
       if(CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 3.9)
         set(_CMAKE_LTO_THIN FALSE)
-- 
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