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bug 1868: enable -Wstrict-overflow only for newer gcc versions

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This commit is contained in:
Tom Henderson
2014-05-28 23:03:23 -07:00
parent f5b4f0961e
commit fe5b9e2242
1 changed files with 6 additions and 1 deletions
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@@ -29,6 +29,10 @@ modules_enabled = ['all_modules']
examples_enabled = False
tests_enabled = False
# Bug 1868: be conservative about -Wstrict-overflow for optimized builds
# on older compilers; it can generate spurious warnings.
min_cc_version_warn_strict_overflow = ('4', '8', '2')
# Get the information out of the NS-3 configuration file.
config_file_exists = False
(config_file_exists, modules_enabled, examples_enabled, tests_enabled) = read_config_file()
@@ -326,7 +330,8 @@ def configure(conf):
if conf.check_compilation_flag('-march=native'):
env.append_value('CXXFLAGS', '-march=native')
env.append_value('CXXFLAGS', '-fstrict-overflow')
env.append_value('CXXFLAGS', '-Wstrict-overflow=5')
if conf.env['CC_VERSION'] >= min_cc_version_warn_strict_overflow:
env.append_value('CXXFLAGS', '-Wstrict-overflow=5')
if sys.platform == 'win32':
env.append_value("LINKFLAGS", "-Wl,--enable-runtime-pseudo-reloc")