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meson: add -Wno-unused also to C++ args when gst debug system is disabled

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And check if argument is supported instead of just passing it blindly,
and make meson code slightly cleaner, centralising the argument setting
in one place.
This commit is contained in:
Tim-Philipp Müller 2019-03-21 11:17:08 +00:00
parent a0474578a0
commit e8583cebe7
1 changed files with 17 additions and 20 deletions
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37
meson.build
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@ -334,28 +334,25 @@ else
cdata.set('DISABLE_ORC', 1)
endif
# Disable compiler warnings for unused variables and args if gst debug system is disabled
if gst_dep.type_name() == 'internal'
gst_proj = subproject('gstreamer')
if not gst_proj.get_variable('gst_debug')
message('GStreamer debug system is disabled')
add_project_arguments('-Wno-unused', language: 'c')
else
message('GStreamer debug system is enabled')
endif
gst_debug_disabled = not subproject('gstreamer').get_variable('gst_debug')
else
# We can't check that in the case of subprojects as we won't
# be able to build against an internal dependency (which is not built yet)
if not cc.compiles('''
#include <gst/gstconfig.h>
#ifdef GST_DISABLE_GST_DEBUG
#error "debugging disabled, make compiler fail"
#endif''' , dependencies: gst_dep)
message('GStreamer debug system is disabled')
add_project_arguments('-Wno-unused', language: 'c')
else
message('GStreamer debug system is enabled')
endif
# We can't check that in the case of subprojects as we won't
# be able to build against an internal dependency (which is not built yet)
gst_debug_disabled = cc.has_header_symbol('gst/gstconfig.h', 'GST_DISABLE_GST_DEBUG', dependencies: gst_dep)
endif
if gst_debug_disabled
message('GStreamer debug system is disabled')
if cc.has_argument('-Wno-unused')
add_project_arguments('-Wno-unused', language: 'c')
endif
if have_cxx and cxx.has_argument ('-Wno-unused')
add_project_arguments('-Wno-unused', language: 'cpp')
endif
else
message('GStreamer debug system is enabled')
endif
presetdir = join_paths(get_option('datadir'), 'gstreamer-' + api_version, 'presets')