From: Jan Janssen <medhefgo@web.de>
Date: Fri, 13 May 2022 12:25:32 +0000 (+0200)
Subject: boot: Build with -flto=auto if available
X-Git-Tag: v252-rc1~953
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7d4953de131657c43c897e4b3ea65d71f380dc34;p=thirdparty%2Fsystemd.git

boot: Build with -flto=auto if available

Without this, we may get the following warning with gcc-12:
    lto-wrapper: warning: using serial compilation of 2 LTRANS jobs
---

diff --git a/src/boot/efi/meson.build b/src/boot/efi/meson.build
index 299a01b9be7..e17669478f7 100644
--- a/src/boot/efi/meson.build
+++ b/src/boot/efi/meson.build
@@ -223,7 +223,7 @@ if get_option('b_ndebug') == 'true' or (
         efi_cflags += ['-DNDEBUG']
 endif
 if get_option('b_lto')
-        efi_cflags += ['-flto']
+        efi_cflags += cc.has_argument('-flto=auto') ? ['-flto=auto'] : ['-flto']
 endif
 
 foreach arg : get_option('c_args')