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waf: Disable opimizations in debug mode 

The -Wuninitilized vs optimizations situation is problematic.
-Wuninitialized needs optimizations to work properly
but then binaries are hard to debug because stack gets optimized.

The implemented solution is not to build debuggable executables
by default, even for non-release source trees. If debug mode is
force enabled at configure stage, then optimizations are force
disabled. This way use of uninitialized data will be catched
early during development and when debugging is needed, the debug
mode will have to be force enabled.
This commit is contained in:
Nedko Arnaudov 2010-08-31 03:05:35 +03:00
parent 8f20db7de0
commit c00c30ca2d
1 changed files with 9 additions and 5 deletions
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14
wscript
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@ -41,8 +41,7 @@ def set_options(opt):
opt.tool_options('boost')
opt.add_option('--enable-pkg-config-dbus-service-dir', action='store_true', default=False, help='force D-Bus service install dir to be one returned by pkg-config')
opt.add_option('--enable-liblash', action='store_true', default=False, help='Build LASH compatibility library')
if RELEASE:
opt.add_option('--debug', action='store_true', default=False, dest='debug', help="Build debuggable binaries")
opt.add_option('--debug', action='store_true', default=False, dest='debug', help="Build debuggable binaries")
opt.add_option('--doxygen', action='store_true', default=False, help='Enable build of doxygen documentation')
def add_cflag(conf, flag):
@ -164,14 +163,19 @@ def configure(conf):
if gcc_ver[0] < 4 or gcc_ver[1] < 4:
#print "optimize force enable is required"
if not check_gcc_optimizations_enabled(conf.env['CCFLAGS']):
print "C optimization forced in order to enable -Wuninitialized"
conf.env.append_unique('CCFLAGS', "-O")
if Options.options.debug:
print "C optimization must be forced in order to enable -Wuninitialized"
print "However this will not be made because debug compilation is enabled"
else:
print "C optimization forced in order to enable -Wuninitialized"
conf.env.append_unique('CCFLAGS', "-O")
except:
pass
conf.env['BUILD_DEBUG'] = not RELEASE or Options.options.debug
conf.env['BUILD_DEBUG'] = Options.options.debug
if conf.env['BUILD_DEBUG']:
add_cflag(conf, '-g')
add_cflag(conf, '-O0')
add_linkflag(conf, '-g')
conf.define('DATA_DIR', os.path.normpath(os.path.join(conf.env['PREFIX'], 'share', APPNAME)))