Bug 1029864

Summary:	libqt5-qtwebkit uses -Wextra, fails to build with GCC 7
Product:	[openSUSE] openSUSE Tumbleweed	Reporter:	Richard Biener <rguenther>
Component:	KDE Workspace (Plasma)	Assignee:	E-Mail List <opensuse-kde-bugs>
Status:	RESOLVED FIXED	QA Contact:	E-mail List <qa-bugs>
Severity:	Normal
Priority:	P2 - High	CC:	dimstar, martin.liska
Version:	Current
Target Milestone:	---
Hardware:	Other
OS:	Other
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Bug Depends on:
Bug Blocks:	1030236

Description Richard Biener 2017-03-17 10:36:02 UTC

-Wextra enables the new -Wexpansion-to-defined which causes OBS to run into

qemu-system-x86_64: terminating on signal 15 from pid 23592

Logfile got too big, killed job.

because of a huge swat of warnings from code like

[ 5443s] ../WTF/wtf/Atomics.h:221:1: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[ 5443s]  #if OS(WINDOWS) && !COMPILER(GCC)
[ 5443s]  ^~~~~~~~~~~~~~~~

basically the warning says that sth like

#define OS(x) defined(x)
#if OS(WINDOWS)

is not something that is allowed by the language (but works in GCC).

I suggest to add -Wno-expansion-to-defined.

Comment 1 Martin Liška 2018-06-01 07:25:31 UTC

Should be fixed.