compile error during installation

Hi

I am installing adsb-exchange on Raspbian 8 but the installation fails during compilation. I get this error below.

Looks like it does not like element number 14 in this msg array. Any idea what this can be?

----CUT---
BUILD AND INSTALL FEED CLIENT
-------------------------------------------------

Compiling / installing the readsb based feed client

Cloning into '/tmp/readsb'...
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU
_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c anet.c -o anet.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU
_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c interactive.c -o int
eractive.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU
_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c mode_ac.c -o mode_ac
.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU
_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c mode_s.c -o mode_s.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU
_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c comm_b.c -o comm_b.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU
_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c net_io.c -o net_io.o
net_io.c: In function ‘decodeBinMessage’:
net_io.c:1747:20: error: iteration 14u invokes undefined behavior [-Werror=aggressive-loop-optimizations]
msg[j] = ch = *p++;
^
net_io.c:1746:9: note: containing loop
for (j = 0; j < 21; j++) { // and the data
^
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c crc.c -o crc.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c demod_2400.c -o demod_2400.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c stats.c -o stats.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c cpr.c -o cpr.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c icao_filter.c -o icao_filter.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c track.c -o track.o
cc -DMODES_READSB_VERSION=\""wiedehopf git: 712f81c (minimal slice_phase0 tweak, Sun Jan 3 18:57:12 2021 0100)"\" -D_GNU_SOURCE -DAIRCRAFT_HASH_BITS=12 -std=c11 -g -W -D_DEFAULT_SOURCE -Wall -Werror -fno-common -O2 -c util.c -o util.o
cc1: all warnings being treated as errors
Makefile:79: recipe for target 'net_io.o' failed
make: *** [net_io.o] Error 1
make: *** Waiting for unfinished jobs....
cp: cannot stat ‘readsb’: No such file or directory

 

Thanks for fixing it. It works now!

I am curious what was the culprit and how did you resolve it?