From 5b398308b63141554430e1a90a2eccdfb1189ab9 Mon Sep 17 00:00:00 2001
From: Steve Lhomme <robux4@ycbcr.xyz>
Date: Thu, 12 Jan 2023 15:09:17 +0100
Subject: [PATCH] meson: add common compiler options similar to configure.ac

Co-authored-by: Marvin Scholz <epirat07@gmail.com>
---
 meson.build       | 41 +++++++++++++++++++++++++++++++++++++++++
 meson_options.txt |  6 +++++-
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 0cf1f30c0a..c424d7e5a9 100644
--- a/meson.build
+++ b/meson.build
@@ -403,6 +403,47 @@ windows_version_test = '''
 
 endif
 
+add_project_arguments(cc.get_supported_arguments([
+    '-Wno-deprecated-copy', # Some Qt version are generating tons of warning that cannot be
+                            # avoided so mute them
+]), language: ['c', 'cpp', 'objc'])
+
+add_project_arguments(cc.get_supported_arguments([
+    '-Wextra',
+    '-Wsign-compare',
+    '-Wundef',
+    '-Wpointer-arith',
+    '-Wvolatile-register-var',
+    '-Wformat',
+    '-Wformat-security',
+    '-Wduplicated-branches',
+    '-Wduplicated-cond',
+]), language: ['c', 'cpp'])
+
+add_project_arguments(cc.get_supported_arguments([
+    '-Wbad-function-cast',
+    '-Wwrite-strings',
+    '-Wmissing-prototypes',
+    '-Werror-implicit-function-declaration',
+    '-Winit-self',
+    '-Wlogical-op',
+    '-Wshadow=local',
+    '-Wmultistatement-macros',
+    '-pipe'
+]), language: ['c'])
+
+if get_option('branch_protection') \
+    .require(host_machine.cpu_family() == 'aarch64', error_message: 'Branch protection is only available for AArch64') \
+    .require(cc.has_argument('-mbranch-protection=standard'), error_message: 'Compiler does not support `-mbranch-protection`') \
+    .allowed()
+    add_project_arguments('-mbranch-protection=standard', language: ['c', 'cpp'])
+endif
+
+if cc.get_id() not in ['clang-cl']
+    add_project_arguments(cc.get_supported_arguments([
+        '-Wall', # too verbose with clang-cl
+    ]), language: ['c', 'cpp'])
+endif
 
 add_project_arguments(cc.first_supported_argument(['-Werror-implicit-function-declaration', '-we4013']), language: ['c'])
 
diff --git a/meson_options.txt b/meson_options.txt
index 88b74b1f98..572912bc1f 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -40,6 +40,11 @@ option('run_as_root',
     value : false,
     description : 'Allow running VLC as root')
 
+option('branch_protection',
+    type : 'feature',
+    value : 'auto',
+    description : 'AArch64 branch protection')
+
 option('winstore_app',
     type : 'boolean',
     value : 'false',
@@ -52,7 +57,6 @@ option('winstore_app',
 # TODO: Missing avx option
 # TODO: Missing neon option
 # TODO: Missing sve option
-# TODO: Missing branch_protection option
 # TODO: Missing altivec option
 # TODO: Missing update-check option