From: Fred Morcos <fred.morcos@open-xchange.com>
Date: Tue, 8 Aug 2023 13:16:05 +0000 (+0200)
Subject: Meson: Use builtin option to handle LTO
X-Git-Tag: rec-5.1.0-alpha1~80^2~288
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b519b42d5cb6c75de797d6354cbd45492a49e6e5;p=thirdparty%2Fpdns.git

Meson: Use builtin option to handle LTO
---

diff --git a/meson.build b/meson.build
index 859a92f25d..5df24064fb 100644
--- a/meson.build
+++ b/meson.build
@@ -70,8 +70,6 @@ subdir('meson/code-coverage')            # Code coverage
 subdir('meson/auto-var-init')            # Automatic Variable Initialization
 subdir('meson/sanitizers')               # Sanitizers
 subdir('meson/malloc-trace')             # Malloc-trace
-# TODO Use meson's -Db_lto* options?
-subdir('meson/lto')                      # Link-time Optimization
 
 # Find or generate pdns/dnslabeltext.cc
 if not ragel.found() and not fs.exists('pdns/dnslabeltext.cc')
diff --git a/meson/lto/meson.build b/meson/lto/meson.build
deleted file mode 100644
index eb9a0f1eea..0000000000
--- a/meson/lto/meson.build
+++ /dev/null
@@ -1,35 +0,0 @@
-# Link-time Optimization
-
-opt_lto = get_option('lto')
-
-if opt_lto == 'thin'
-  compiler_opt = '-flto=thin'
-  if cxx.has_argument(compiler_opt)
-    add_global_arguments(compiler_opt, language: ['c', 'cpp'])
-    add_global_link_arguments(compiler_opt, language: ['c', 'cpp'])
-  else
-    opt_lto = 'auto'
-  endif
-endif
-
-if opt_lto == 'auto'
-  compiler_opt = '-flto=auto'
-  if cxx.has_argument(compiler_opt)
-    add_global_arguments(compiler_opt, language: ['c', 'cpp'])
-    add_global_link_arguments(compiler_opt, language: ['c', 'cpp'])
-  else
-    opt_lto = 'yes'
-  endif
-endif
-
-if opt_lto == 'yes'
-  compiler_opt = '-flto'
-  if cxx.has_argument(compiler_opt)
-    add_global_arguments(compiler_opt, language: ['c', 'cpp'])
-    add_global_link_arguments(compiler_opt, language: ['c', 'cpp'])
-  else
-    error('LTO was requested but is not supported')
-  endif
-endif
-
-summary('LTO', opt_lto, section: 'Configuration')
diff --git a/meson_options.txt b/meson_options.txt
index d4f14a7a1b..24d462a718 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -48,5 +48,3 @@ option('systemd-service-user', type: 'string', value: 'pdns', description: 'Syst
 option('systemd-service-group', type: 'string', value: 'pdns', description: 'Systemd service group (setgid and unit file; group is not created)')
 option('auto-var-init', type: 'combo', value: 'disabled', choices: ['zero', 'pattern', 'disabled'], description: 'Enable initialization of automatic variables')
 option('malloc-trace', type: 'boolean', value: false, description: 'Enable malloc-trace')
-# TODO Use meson's -Db_lto* options?
-option('lto', type: 'combo', choices: ['yes', 'no', 'thin', 'auto'], value: 'no', description: 'Enable link-time optimization')