From d4a970f6962dda28133290194832b726b566ddab Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Thu, 7 Jul 2022 18:59:06 -0400
Subject: Switch to meson build system
---
meson/library/meson.build | 30 +++++
meson/suppressions/meson.build | 129 +++++++++++++++++++++
meson/warnings/meson.build | 256 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 415 insertions(+)
create mode 100644 meson/library/meson.build
create mode 100644 meson/suppressions/meson.build
create mode 100644 meson/warnings/meson.build
(limited to 'meson')
diff --git a/meson/library/meson.build b/meson/library/meson.build
new file mode 100644
index 0000000..f50505f
--- /dev/null
+++ b/meson/library/meson.build
@@ -0,0 +1,30 @@
+# Copyright 2020-2022 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: CC0-1.0 OR ISC
+
+# General definitions for building libraries.
+#
+# These are essentially workarounds for meson and/or MSVC. Unfortunately,
+# meson's default_library option doesn't support shared and static builds very
+# well. In particular, it's often necessary to define different symbols for
+# static and shared builds of libraries so that symbols can be exported. To
+# work around this, we do not support default_library=both on Windows. On
+# other platforms with GCC-like compilers, we can support both because symbols
+# can safely be exported in the same way (giving them default visibility) in
+# both static and shared builds.
+
+# Abort on Windows with default_library=both
+if get_option('default_library') == 'both'
+ if host_machine.system() == 'windows'
+ error('default_library=both is not supported on Windows')
+ endif
+endif
+
+# Set library_suffix to the suffix for libraries
+if cc.get_id() == 'msvc'
+ # Meson appends a version to the name only on MS, which leads to inconsistent
+ # library names, like `mylib-1-1`. So, provide no suffix to ultimately get
+ # the same name as on other platforms, like `mylib-1`.
+ library_suffix = ''
+else
+ library_suffix = '-@0@'.format(meson.project_version().split('.')[0])
+endif
diff --git a/meson/suppressions/meson.build b/meson/suppressions/meson.build
new file mode 100644
index 0000000..fcce3f5
--- /dev/null
+++ b/meson/suppressions/meson.build
@@ -0,0 +1,129 @@
+# Copyright 2020-2022 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: CC0-1.0 OR ISC
+
+# Project-specific warning suppressions.
+#
+# This should be used in conjunction with the generic "warnings" sibling that
+# enables all reasonable warnings for the compiler. It lives here just to keep
+# the top-level meson.build more readable.
+
+#####
+# C #
+#####
+
+if is_variable('cc')
+ c_suppressions = []
+
+ if get_option('strict')
+ if cc.get_id() in ['clang', 'emscripten']
+ c_suppressions += [
+ '-Wno-cast-align',
+ '-Wno-cast-qual',
+ '-Wno-documentation-unknown-command',
+ '-Wno-double-promotion',
+ '-Wno-float-conversion',
+ '-Wno-float-equal',
+ '-Wno-implicit-float-conversion',
+ '-Wno-padded',
+ '-Wno-reserved-id-macro',
+ '-Wno-shorten-64-to-32',
+ '-Wno-sign-conversion',
+ '-Wno-switch-enum',
+ '-Wno-unused-parameter',
+ ]
+ elif cc.get_id() == 'gcc'
+ c_suppressions += [
+ '-Wno-cast-align',
+ '-Wno-cast-qual',
+ '-Wno-conversion',
+ '-Wno-double-promotion',
+ '-Wno-float-equal',
+ '-Wno-inline',
+ '-Wno-padded',
+ '-Wno-suggest-attribute=const',
+ '-Wno-suggest-attribute=malloc',
+ '-Wno-suggest-attribute=pure',
+ '-Wno-switch-default',
+ '-Wno-switch-enum',
+ '-Wno-unsuffixed-float-constants',
+ '-Wno-unused-const-variable',
+ '-Wno-unused-parameter',
+ ]
+
+ if target_machine.system() == 'windows'
+ c_suppressions += [
+ '-Wno-suggest-attribute=format',
+ ]
+ endif
+
+ elif cc.get_id() == 'msvc'
+ c_suppressions += [
+ '/wd4061', # enumerator in switch is not explicitly handled
+ '/wd4100', # unreferenced formal parameter
+ '/wd4244', # conversion with possible loss of data
+ '/wd4267', # conversion from size_t to a smaller type
+ '/wd4310', # cast truncates constant value
+ '/wd4365', # signed/unsigned mismatch
+ '/wd4464', # relative include path contains ".."
+ '/wd4514', # unreferenced inline function has been removed
+ '/wd4514', # unreferenced inline function has been removed
+ '/wd4706', # assignment within conditional expression
+ '/wd4710', # function not inlined
+ '/wd4711', # function selected for automatic inline expansion
+ '/wd4820', # padding added after construct
+ '/wd5045', # will insert Spectre mitigation for memory load
+ ]
+ endif
+ endif
+
+ c_suppressions = cc.get_supported_arguments(c_suppressions)
+endif
+
+#######
+# C++ #
+#######
+
+if is_variable('cpp')
+ cpp_suppressions = []
+
+ if get_option('strict')
+ if cpp.get_id() in ['clang', 'emscripten']
+ cpp_suppressions = [
+ '-Wno-cast-align',
+ '-Wno-cast-qual',
+ '-Wno-documentation-unknown-command',
+ '-Wno-nullability-extension',
+ '-Wno-padded',
+ '-Wno-reserved-id-macro',
+ ]
+
+ elif cpp.get_id() == 'gcc'
+ cpp_suppressions = [
+ '-Wno-cast-align',
+ '-Wno-cast-qual',
+ '-Wno-inline',
+ '-Wno-padded',
+ '-Wno-unused-const-variable',
+ '-Wno-useless-cast',
+ ]
+
+ if target_machine.system() == 'windows'
+ cpp_suppressions += [
+ '-Wno-suggest-attribute=format',
+ ]
+ endif
+
+ elif cpp.get_id() == 'msvc'
+ cpp_suppressions = [
+ '/wd4514', # unreferenced inline function has been removed
+ '/wd4706', # assignment within conditional expression
+ '/wd4710', # function not inlined
+ '/wd4711', # function selected for automatic inline expansion
+ '/wd4820', # padding added after data member
+ '/wd5045', # will insert Spectre mitigation
+ ]
+ endif
+ endif
+
+ cpp_suppressions = cpp.get_supported_arguments(cpp_suppressions)
+endif
diff --git a/meson/warnings/meson.build b/meson/warnings/meson.build
new file mode 100644
index 0000000..e0051f9
--- /dev/null
+++ b/meson/warnings/meson.build
@@ -0,0 +1,256 @@
+# Copyright 2020-2022 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: CC0-1.0 OR ISC
+
+# General code to enable approximately all warnings in GCC 12, clang, and MSVC.
+#
+# This is trivial for clang and MSVC, but GCC doesn't have an "everything"
+# option, so we need to enable everything we want explicitly. Wall is assumed,
+# but Wextra is not, for stability.
+#
+# These are collected from common.opt and c.opt in the GCC source, and manually
+# curated with the help of the GCC documentation. Warnings that are
+# application-specific, historical, or about compatibility between specific
+# language revisions are omitted. The intent here is to have roughly the same
+# meaning as clang's Weverything: extremely strict, but general. Specifically
+# omitted are:
+#
+# General:
+#
+# Wabi=
+# Waggregate-return
+# Walloc-size-larger-than=BYTES
+# Walloca-larger-than=BYTES
+# Wframe-larger-than=BYTES
+# Wlarger-than=BYTES
+# Wstack-usage=BYTES
+# Wsystem-headers
+# Wtraditional
+# Wtraditional-conversion
+# Wtrampolines
+# Wvla-larger-than=BYTES
+#
+# Build specific:
+#
+# Wpoison-system-directories
+#
+# C Specific:
+#
+# Wc11-c2x-compat
+# Wc90-c99-compat
+# Wc99-c11-compat
+# Wdeclaration-after-statement
+# Wtraditional
+# Wtraditional-conversion
+#
+# C++ Specific:
+#
+# Wc++0x-compat
+# Wc++1z-compat
+# Wc++2a-compat
+# Wctad-maybe-unsupported
+# Wnamespaces
+# Wtemplates
+
+# GCC warnings that apply to all C-family languages
+gcc_common_warnings = [
+ '-Walloc-zero',
+ '-Walloca',
+ '-Wanalyzer-too-complex',
+ '-Warith-conversion',
+ '-Warray-bounds=2',
+ '-Wattribute-alias=2',
+ '-Wbidi-chars=ucn',
+ '-Wcast-align=strict',
+ '-Wcast-function-type',
+ '-Wcast-qual',
+ '-Wclobbered',
+ '-Wconversion',
+ '-Wdate-time',
+ '-Wdisabled-optimization',
+ '-Wdouble-promotion',
+ '-Wduplicated-branches',
+ '-Wduplicated-cond',
+ '-Wempty-body',
+ '-Wendif-labels',
+ '-Wfloat-equal',
+ '-Wformat-overflow=2',
+ '-Wformat-signedness',
+ '-Wformat-truncation=2',
+ '-Wformat=2',
+ '-Wignored-qualifiers',
+ '-Wimplicit-fallthrough=3',
+ '-Winit-self',
+ '-Winline',
+ '-Winvalid-pch',
+ '-Wlogical-op',
+ '-Wmissing-declarations',
+ '-Wmissing-field-initializers',
+ '-Wmissing-include-dirs',
+ '-Wmultichar',
+ '-Wnormalized=nfc',
+ '-Wnull-dereference',
+ '-Wopenacc-parallelism',
+ '-Woverlength-strings',
+ '-Wpacked',
+ '-Wpacked-bitfield-compat',
+ '-Wpadded',
+ '-Wpointer-arith',
+ '-Wredundant-decls',
+ '-Wshadow',
+ '-Wshift-negative-value',
+ '-Wshift-overflow=2',
+ '-Wstack-protector',
+ '-Wstrict-aliasing=3',
+ '-Wstrict-overflow=5',
+ '-Wstring-compare',
+ '-Wstringop-overflow=3',
+ '-Wsuggest-attribute=cold',
+ '-Wsuggest-attribute=const',
+ '-Wsuggest-attribute=format',
+ '-Wsuggest-attribute=malloc',
+ '-Wsuggest-attribute=noreturn',
+ '-Wsuggest-attribute=pure',
+ '-Wswitch-default',
+ '-Wswitch-enum',
+ '-Wtrampolines',
+ '-Wtrivial-auto-var-init',
+ '-Wtype-limits',
+ '-Wundef',
+ '-Wuninitialized',
+ '-Wunsafe-loop-optimizations',
+ '-Wunused',
+ '-Wunused-const-variable=2',
+ '-Wunused-macros',
+ '-Wvector-operation-performance',
+ '-Wvla',
+ '-Wwrite-strings',
+]
+
+#####
+# C #
+#####
+
+if is_variable('cc') and not is_variable('all_c_warnings')
+ # Set all_c_warnings for the current C compiler
+ all_c_warnings = []
+
+ if get_option('strict')
+ if cc.get_id() == 'clang'
+ all_c_warnings += ['-Weverything']
+
+ if not meson.is_cross_build()
+ all_c_warnings += [
+ '-Wno-poison-system-directories',
+ ]
+ endif
+
+ elif cc.get_id() == 'gcc'
+ all_c_warnings += gcc_common_warnings + [
+ '-Wabsolute-value',
+ '-Wbad-function-cast',
+ '-Wc++-compat',
+ '-Wenum-conversion',
+ '-Wjump-misses-init',
+ '-Wmissing-parameter-type',
+ '-Wmissing-prototypes',
+ '-Wnested-externs',
+ '-Wold-style-declaration',
+ '-Wold-style-definition',
+ '-Woverride-init',
+ '-Wsign-compare',
+ '-Wstrict-prototypes',
+ '-Wunsuffixed-float-constants',
+ ]
+
+ elif cc.get_id() == 'msvc'
+ all_c_warnings += [
+ '/Wall',
+ '/experimental:external',
+ '/external:W0',
+ '/external:anglebrackets',
+ ]
+ endif
+ endif
+
+ all_c_warnings = cc.get_supported_arguments(all_c_warnings)
+ add_global_arguments(all_c_warnings, language: ['c'])
+endif
+
+#######
+# C++ #
+#######
+
+if is_variable('cpp') and not is_variable('all_cpp_warnings')
+ # Set all_cpp_warnings for the current C++ compiler
+ all_cpp_warnings = []
+
+ if get_option('strict')
+ if cpp.get_id() == 'clang'
+ all_cpp_warnings += [
+ '-Weverything',
+ '-Wno-c++98-compat',
+ '-Wno-c++98-compat-pedantic',
+ ]
+
+ if not meson.is_cross_build()
+ all_cpp_warnings += [
+ '-Wno-poison-system-directories',
+ ]
+ endif
+
+ elif cpp.get_id() == 'gcc'
+ all_cpp_warnings += gcc_common_warnings + [
+ '-Wabi-tag',
+ '-Waligned-new=all',
+ '-Wcatch-value=3',
+ '-Wcomma-subscript',
+ '-Wconditionally-supported',
+ '-Wctor-dtor-privacy',
+ '-Wdelete-non-virtual-dtor',
+ '-Wdeprecated',
+ '-Wdeprecated-copy',
+ '-Wdeprecated-copy-dtor',
+ '-Wdeprecated-enum-enum-conversion',
+ '-Wdeprecated-enum-float-conversion',
+ '-Weffc++',
+ '-Wexpansion-to-defined',
+ '-Wextra-semi',
+ '-Wimport',
+ '-Winvalid-imported-macros',
+ '-Wmismatched-tags',
+ '-Wmultiple-inheritance',
+ '-Wnoexcept',
+ '-Wnoexcept-type',
+ '-Wnon-virtual-dtor',
+ '-Wold-style-cast',
+ '-Woverloaded-virtual',
+ '-Wplacement-new=2',
+ '-Wredundant-move',
+ '-Wredundant-tags',
+ '-Wregister',
+ '-Wsign-compare',
+ '-Wsign-promo',
+ '-Wsized-deallocation',
+ '-Wstrict-null-sentinel',
+ '-Wsuggest-final-methods',
+ '-Wsuggest-final-types',
+ '-Wsuggest-override',
+ '-Wuseless-cast',
+ '-Wvirtual-inheritance',
+ '-Wvolatile',
+ '-Wzero-as-null-pointer-constant',
+ ]
+
+ elif cpp.get_id() == 'msvc'
+ all_cpp_warnings += [
+ '/Wall',
+ '/experimental:external',
+ '/external:W0',
+ '/external:anglebrackets',
+ ]
+ endif
+ endif
+
+ all_cpp_warnings = cpp.get_supported_arguments(all_cpp_warnings)
+ add_global_arguments(all_cpp_warnings, language: ['cpp'])
+endif
--
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