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SCons: Add 'werror' opt-in to treat warning as errors 

Also reorder advanced options to a more natural order,
and fix MSVC warning when disabling warnings in secondary environment.
This commit is contained in:
Rémi Verschelde 2018-10-03 13:38:09 +02:00
parent 0e2de7481d
commit 2024666305
2 changed files with 19 additions and 9 deletions
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24
SConstruct
View File

@ -159,15 +159,16 @@ opts.Add(BoolVariable('minizip', "Enable ZIP archive support using minizip", Tru
opts.Add(BoolVariable('xaudio2', "Enable the XAudio2 audio driver", False))
# Advanced options
opts.Add(BoolVariable('verbose', "Enable verbose output for the compilation", False))
opts.Add(BoolVariable('progress', "Show a progress indicator during compilation", True))
opts.Add(EnumVariable('warnings', "Set the level of warnings emitted during compilation", 'all', ('extra', 'all', 'moderate', 'no')))
opts.Add(BoolVariable('werror', "Treat compiler warnings as errors. Depends on the level of warnings set with 'warnings'", False))
opts.Add(BoolVariable('dev', "If yes, alias for verbose=yes warnings=all", False))
opts.Add('extra_suffix', "Custom extra suffix added to the base filename of all generated binary files", '')
opts.Add(BoolVariable('vsproj', "Generate a Visual Studio solution", False))
opts.Add(EnumVariable('macports_clang', "Build using Clang from MacPorts", 'no', ('no', '5.0', 'devel')))
opts.Add(BoolVariable('disable_3d', "Disable 3D nodes for a smaller executable", False))
opts.Add(BoolVariable('disable_advanced_gui', "Disable advanced 3D GUI nodes and behaviors", False))
opts.Add('extra_suffix', "Custom extra suffix added to the base filename of all generated binary files", '')
opts.Add(BoolVariable('verbose', "Enable verbose output for the compilation", False))
opts.Add(BoolVariable('vsproj', "Generate a Visual Studio solution", False))
opts.Add(EnumVariable('warnings', "Set the level of warnings emitted during compilation", 'all', ('extra', 'all', 'moderate', 'no')))
opts.Add(BoolVariable('progress', "Show a progress indicator during compilation", True))
opts.Add(BoolVariable('dev', "If yes, alias for verbose=yes warnings=all", False))
opts.Add(EnumVariable('macports_clang', "Build using Clang from MacPorts", 'no', ('no', '5.0', 'devel')))
opts.Add(BoolVariable('no_editor_splash', "Don't use the custom splash screen for the editor", False))
opts.Add('system_certs_path', "Use this path as SSL certificates default for editor (for package maintainers)", '')
@ -235,7 +236,6 @@ env_base.platform_apis = platform_apis
if (env_base['target'] == 'debug'):
env_base.Append(CPPDEFINES=['DEBUG_MEMORY_ALLOC','DISABLE_FORCED_INLINE'])
if (env_base['no_editor_splash']):
env_base.Append(CPPDEFINES=['NO_EDITOR_SPLASH'])
@ -318,6 +318,7 @@ if selected_platform in platform_list:
# must happen after the flags, so when flags are used by configure, stuff happens (ie, ssl on x11)
detect.configure(env)
# Configure compiler warnings
if env.msvc:
# Truncations, narrowing conversions, signed/unsigned comparisons...
disable_nonessential_warnings = ['/wd4267', '/wd4244', '/wd4305', '/wd4018', '/wd4800']
@ -331,6 +332,8 @@ if selected_platform in platform_list:
env.Append(CCFLAGS=['/w'])
# Set exception handling model to avoid warnings caused by Windows system headers.
env.Append(CCFLAGS=['/EHsc'])
if (env["werror"]):
env.Append(CCFLAGS=['/WX'])
else: # Rest of the world
disable_nonessential_warnings = ['-Wno-sign-compare']
if (env["warnings"] == 'extra'):
@ -341,7 +344,10 @@ if selected_platform in platform_list:
env.Append(CCFLAGS=['-Wall', '-Wno-unused'] + disable_nonessential_warnings)
else: # 'no'
env.Append(CCFLAGS=['-w'])
env.Append(CCFLAGS=['-Werror=return-type'])
if (env["werror"]):
env.Append(CCFLAGS=['-Werror'])
else: # always enable those errors
env.Append(CCFLAGS=['-Werror=return-type'])
suffix = "." + selected_platform

4
methods.py
View File

@ -22,6 +22,10 @@ def add_source_files(self, sources, filetype, lib_env=None, shared=False):
def disable_warnings(self):
# 'self' is the environment
if self.msvc:
# We have to remove existing warning level defines before appending /w,
# otherwise we get: "warning D9025 : overriding '/W3' with '/w'"
warn_flags = ['/Wall', '/W4', '/W3', '/W2', '/W1', '/WX']
self['CCFLAGS'] = [x for x in self['CCFLAGS'] if not x in warn_flags]
self.Append(CCFLAGS=['/w'])
else:
self.Append(CCFLAGS=['-w'])