CCLD i3lock
ld: i3lock-unlock_indicator.o:i3lock/unlock_indicator.c:38:
multiple definition of `input_position'; i3lock-i3lock.o:i3lock/i3lock.c:69: first defined here
ld: i3lock-unlock_indicator.o:(.bss+0x102): multiple definition of `__odr_asan.input_position'; i3lock-i3lock.o:(.bss+0x92b): first defined here
On gcc-10 (and gcc-9 -fno-common) build fails as:
gcc-10 will change the default from -fcommon to fno-common: https://gcc.gnu.org/PR85678.
The error also happens if CFLAGS=-fno-common passed explicitly.
Reported-by: Hans de Graaff Bug: https://bugs.gentoo.org/706286