From 40c187dc15d3715443d0bac56ea3e3eff609e74c Mon Sep 17 00:00:00 2001
From: Luna D Dragon <luna@nullrequest.com>
Date: Wed, 30 Oct 2024 17:41:06 +0530
Subject: [PATCH] build: allow building with clang+lto

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2053
---
 meson.build | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/meson.build b/meson.build
index a46aae642..1b8be0b02 100644
--- a/meson.build
+++ b/meson.build
@@ -173,11 +173,18 @@ endif
 
 enable_lto = get_option('b_lto')
 if enable_lto
-  # meson already adds '-flto'
-  lto_flag = '-flto-partition=none'
-  assert(cc.has_argument(lto_flag), '-flto-partition=none not supported. Disable link-time optimization with -Db_lto=false.')
-  common_flags += lto_flag
-  common_ldflags += lto_flag
+  if  cc.get_id() == 'clang'
+    clang_version = cc.version()
+    if clang_version <= '18.0.0'
+      error('Clang version should be greater then 18.0.0 got : ' + clang_version)
+    endif
+  else
+    # Meson already adds '-flto'
+    lto_flag = '-flto-partition=none'
+    assert(cc.has_argument(lto_flag), '-flto-partition=none not supported. Disable link-time optimization with -Db_lto=false.')
+    common_flags += lto_flag
+    common_ldflags += lto_flag
+  endif
 endif
 
 common_flags += cc.get_supported_arguments([