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| author | Philip Withnall <philip.withnall@collabora.co.uk> | 2016-01-30 15:44:03 +0100 |
|---|---|---|
| committer | Philip Withnall <philip.withnall@collabora.co.uk> | 2016-01-30 15:44:03 +0100 |
| commit | 0ff7ca94a608663649defc72021062de098853a8 (patch) | |
| tree | 6d13df9d398ba68ed591ebff20c065c35ffc5f68 | |
| parent | c598d73125c7fd6577ea911c103bf63fb23f0813 (diff) | |
| download | gobject-introspection-0ff7ca94a608663649defc72021062de098853a8.tar.gz | |
giscanner: Disable warnings arising from -D_FORTIFY_SOURCE -O0
Using distutils.ccompiler means that we are forced to use the CFLAGS
from the system’s Python installation, which may contain
-D_FORTIFY_SOURCE. The user’s environment-provided CFLAGS may contain
-O0 (because they are a developer). These two flags cause a warning when
used together. Silence that warning by passing -Wno-cpp to disable
warnings from #warning preprocessor statements in the generated C code.
It doesn’t seem to be possible to selectively undefine _FORTIFY_SOURCE
or to stop using the compiler flags from distutils.sysconfig,
unfortunately.
https://bugzilla.gnome.org/show_bug.cgi?id=757934
| -rw-r--r-- | giscanner/ccompiler.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/giscanner/ccompiler.py b/giscanner/ccompiler.py index 9b27f0e1..574f40cb 100644 --- a/giscanner/ccompiler.py +++ b/giscanner/ccompiler.py @@ -229,6 +229,12 @@ class CCompiler(object): extra_postargs.append('-Wall') extra_postargs.append(self._cflags_no_deprecation_warnings) + # Disable warnings from combining _FORTIFY_SOURCE (from + # distutils.sysconfig) and -O0 (potentially provided in CFLAGS by the + # user). + if isinstance(self.compiler, UnixCCompiler): + extra_postargs.append('-Wno-cpp') + includes.extend(include_paths) extra_postargs.extend(extra_args) |