Seen with a lot of GNUstep applications:
gcc AppController.m -c \
-MMD -MP -DGNUSTEP -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1
-DGNU_RUNTIME=1 -DGNUSTEP_BASE_LIBRARY=1 -D_REENTRANT -fPIC -g -Wall -DDEBUG
-fno-omit-frame-pointer -DGSWARN -DGSDIAGNOSE -Wno-import -O2
-fno-strict-aliasing -fexceptions -fobjc-exceptions -D_NATIVE_OBJC_EXCEPTIONS
-fgnu-runtime -fconstant-string-class=NSConstantString -I.
-I/usr/local/include/GNUstep -I/usr/include/GNUstep \
-o obj/AppController.m.o
In file included from Date.h:4,
from Event.h:3,
from AppointmentEditor.h:3,
from AppController.m:4:
/usr/include/ical.h:22:2: warning: #warning "#include <ical.h> is deprecated.
Please #include <libical/ical.h> instead."
/tmp/ccdTn0Sv.s: Assembler messages:
/tmp/ccdTn0Sv.s:11021: Error: symbol `_OBJC_CLASS_AppController' is already
defined
make[2]: *** [obj/AppController.m.o] Error 1
--
Summary: [4.4/4.5 regression] ObjC: Error: symbol
`_OBJC_CLASS_AppController' is already defined
Product: gcc
Version: 4.4.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: objc
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: doko at ubuntu dot com
GCC target triplet: arm-linux-gnueabi
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41617
