From: Peter Hutterer <[email protected]>
Compiler warning:
xinput.c:272: warning: dereferencing pointer 'e' does break strict-aliasing
rules
The code itself is the usual XInput client-side code:
XEvent event;
XDeviceMotionEvent *e = (XDeviceMotionEvent *)&event;
XNextEvent(display, &event);
printf("%d\n", e->type);
Since XDeviceMotionEvent is not guaranteed the same size as XEvent, clients
must use pointer aliasing as above when using the XNextEvent API. Disable
strict aliasing for this example.
Reviewed-by: Peter Hutterer <[email protected]>
Reviewed-by: Gaetan Nadon <[email protected]>
Signed-off-by: Peter Hutterer <[email protected]>
Signed-off-by: Gaetan Nadon <[email protected]>
---
hw/dmx/examples/Makefile.am | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/hw/dmx/examples/Makefile.am b/hw/dmx/examples/Makefile.am
index 003c143..d594b85 100644
--- a/hw/dmx/examples/Makefile.am
+++ b/hw/dmx/examples/Makefile.am
@@ -43,7 +43,7 @@ dmxrminput_CFLAGS = $(DMXEXAMPLES_DEP_CFLAGS) $(BASE_CFLAGS)
xinput_SOURCES = xinput.c
xinput_LDADD = $(DMXXIEXAMPLES_DEP_LIBS)
-xinput_CFLAGS = $(DMXXIEXAMPLES_DEP_CFLAGS) $(BASE_CFLAGS)
+xinput_CFLAGS = $(DMXXIEXAMPLES_DEP_CFLAGS) $(BASE_CFLAGS)
$(NO_STRICT_ALIASING_CFLAG)
xtest_SOURCES = xtest.c
xtest_LDADD = $(XTSTEXAMPLES_DEP_LIBS)
--
1.7.4.1
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