blob: 7d6a5456a63f88d47a76acdc9d9de56ca4386149 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
https://github.com/opencv/opencv/pull/23991
From 4ee0f212cc19f7e77483d34d4cf8378945e3da31 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=8D=E9=B1=BC=E5=84=BF?=
<36976072+buyuer@users.noreply.github.com>
Date: Fri, 14 Jul 2023 08:45:14 +0000
Subject: [PATCH] Eliminating compilation warnings when using lto in gcc12 and
later versions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
use -flto=auto when use gcc12 or later
Signed-off-by: 不鱼儿 <36976072+buyuer@users.noreply.github.com>
---
cmake/OpenCVCompilerOptions.cmake | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/cmake/OpenCVCompilerOptions.cmake b/cmake/OpenCVCompilerOptions.cmake
index d4600943fb0d..8bd86681303e 100644
--- a/cmake/OpenCVCompilerOptions.cmake
+++ b/cmake/OpenCVCompilerOptions.cmake
@@ -261,7 +261,11 @@ if(CV_GCC OR CV_CLANG)
endif()
if(ENABLE_LTO)
- add_extra_compiler_option(-flto)
+ if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 12)
+ add_extra_compiler_option(-flto=auto)
+ else()
+ add_extra_compiler_option(-flto)
+ endif()
endif()
if(ENABLE_THIN_LTO)
add_extra_compiler_option(-flto=thin)
|
