From: Sutou Kouhei <kou@clear-code.com>
To: peter@eisentraut.org
Cc: andres@anarazel.de
Cc: tristan@neon.tech
Cc: michael@paquier.xyz
Cc: pgsql-hackers@postgresql.org
Subject: Re: meson: Specify -Wformat as a common warning flag for extensions
Date: Wed, 29 May 2024 15:47:08 +0900 (JST)
Message-ID: <20240529.154708.173647409366729418.kou@clear-code.com> (raw)
In-Reply-To: <4707d4ed-f268-43c0-b4dd-cdbc7520f508@eisentraut.org>
References: <20240407232635.fq4kc5556lahaoej@awork3.anarazel.de>
<20240408.100117.1165016889947781960.kou@clear-code.com>
<4707d4ed-f268-43c0-b4dd-cdbc7520f508@eisentraut.org>
Hi,
In <4707d4ed-f268-43c0-b4dd-cdbc7520f508@eisentraut.org>
"Re: meson: Specify -Wformat as a common warning flag for extensions" on Tue, 28 May 2024 23:31:05 -0700,
Peter Eisentraut <peter@eisentraut.org> wrote:
> On 07.04.24 18:01, Sutou Kouhei wrote:
>> +# We don't have "warning_level == 3" and "warning_level ==
>> +# 'everything'" here because we don't use these warning levels.
>> +if warning_level == '1'
>> + common_builtin_flags += ['-Wall']
>> +elif warning_level == '2'
>> + common_builtin_flags += ['-Wall', '-Wextra']
>> +endif
>
> I would trim this even further and always export just '-Wall'. The
> other options aren't really something we support.
OK. How about the v6 patch? It always uses '-Wall'.
Thanks,
--
kou
Attachments:v6-0001-meson-Restore-implicit-warning-debug-optimize-fla.patch (text/x-patch, 2.8K) download
From 8238adba3f3fc96d4a9e50af611b1cb3566abc0e Mon Sep 17 00:00:00 2001
From: Sutou Kouhei <kou@clear-code.com>
Date: Fri, 15 Mar 2024 18:27:30 +0900
Subject: [PATCH v6] meson: Restore implicit warning/debug/optimize flags for
extensions
Meson specifies warning/debug/optimize flags such as "-Wall", "-g" and
"-O2" automatically based on "--warnlevel" and "--buildtype"
options. And we use "--warning_level=1" and
"--buildtype=debugoptimized" by default.
We don't specify warning/debug/optimize flags explicitly to build
PostgreSQL with Meson. Because Meson does it automatically as we said.
But Meson doesn't care about flags in Makefile.global and
pg_config. So we need to care about them manually.
This changes do it. They detect debug/optimize flags based on
debug/optimization option values because Meson doesn't tell us flags
Meson guessed. We always use -Wall for warning flags.
---
meson.build | 27 +++++++++++++++++++++++++++
src/include/meson.build | 4 ++--
2 files changed, 29 insertions(+), 2 deletions(-)
diff --git a/meson.build b/meson.buildindex d6401fb8e30..d7239dbb114 100644--- a/meson.build+++ b/meson.build@@ -1851,6 +1851,33 @@ endif
vectorize_cflags = cc.get_supported_arguments(['-ftree-vectorize'])
unroll_loops_cflags = cc.get_supported_arguments(['-funroll-loops'])
+# They aren't used for building PostgreSQL itself because Meson does+# everything internally. They are used by extensions via pg_config or+# Makefile.global.+common_builtin_flags = ['-Wall']++if get_option('debug')+ common_builtin_flags += ['-g']+endif++optimization = get_option('optimization')+if optimization == '0'+ common_builtin_flags += ['-O0']+elif optimization == '1'+ common_builtin_flags += ['-O1']+elif optimization == '2'+ common_builtin_flags += ['-O2']+elif optimization == '3'+ common_builtin_flags += ['-O3']+elif optimization == 's'+ common_builtin_flags += ['-Os']+endif++cflags_builtin = cc.get_supported_arguments(common_builtin_flags)+if llvm.found()+ cxxflags_builtin = cpp.get_supported_arguments(common_builtin_flags)+endif+
common_warning_flags = [
'-Wmissing-prototypes',
'-Wpointer-arith',
diff --git a/src/include/meson.build b/src/include/meson.buildindex a28f115d867..58b7a9c1e7e 100644--- a/src/include/meson.build+++ b/src/include/meson.build@@ -44,9 +44,9 @@ config_paths_data.set_quoted('MANDIR', dir_prefix / dir_man)
var_cc = ' '.join(cc.cmd_array())
var_cpp = ' '.join(cc.cmd_array() + ['-E'])
-var_cflags = ' '.join(cflags + cflags_warn + get_option('c_args'))+var_cflags = ' '.join(cflags + cflags_builtin + cflags_warn + get_option('c_args'))
if llvm.found()
- var_cxxflags = ' '.join(cxxflags + cxxflags_warn + get_option('cpp_args'))+ var_cxxflags = ' '.join(cxxflags + cxxflags_builtin + cxxflags_warn + get_option('cpp_args'))
else
var_cxxflags = ''
endif
--
2.43.0
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To: pgsql-hackers@postgresql.org
Cc: kou@clear-code.com, peter@eisentraut.org, andres@anarazel.de, tristan@neon.tech, michael@paquier.xyz
Subject: Re: meson: Specify -Wformat as a common warning flag for extensions
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