Compile error "nonconstant expression for length"

[yashmulgaonkar]

I get the following compile-time error:

CC font-meter_large.c
CC gfx-cc.c
CC gfx-crosshair.c
CC gfx-cv.c
CC gfx-cl.c
CC gfx-padlock.c
CC gfx-thermometer.c
CC gfx-wifi.c
CC opendps.c
opendps.c: In function 'ui_handle_event':
opendps.c:552:9: warning: unknown option after '#pragma GCC diagnostic' kind [-Wpragmas]
#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
^
CC gfx-poweron.c
CC gfx-poweroff.c
CC func_cc.c
CC func_cl.c
CC func_gen.c
CC uui_icon.c
CC gfx-square.c
CC gfx-saw.c
CC gfx-sin.c
CC uframe.c
CC protocol.c
CC protocol_handler.c
LD opendps_DPS5005.elf
stm32f100_app.ld:15: nonconstant expression for length
collect2: error: ld returned 1 exit status
make: *** [opendps_DPS5005.elf] Error 1

Any pointers on how to solve this?

[Xenoamor]

What version of arm GCC are you using? I recall seeing this error but it was around 5 years ago

[yashmulgaonkar]

yeah i just solved it - it was an old gcc version