dump1090.h: fix build with gcc 10

[ffontaine]

Fix the following build failures on gcc 10 (where -fno-common is enabled by default):

/home/test/autobuild/run/instance-0/output-1/per-package/dump1090/host/bin/../lib/gcc/arm-buildroot-linux-gnueabihf/10.2.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: interactive.o:/home/test/autobuild/run/instance-0/output-1/build/dump1090-bff92c4ad772a0a8d433f788d39dae97e00e4dbe/dump1090.h:373: multiple definition of `Modes'; /home/test/autobuild/run/instance-0/output-1/per-package/dump1090/host/bin/../lib/gcc/arm-buildroot-linux-gnueabihf/10.2.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: interactive.o:/home/test/autobuild/run/instance-0/output-1/build/dump1090-bff92c4ad772a0a8d433f788d39dae97e00e4dbe/dump1090.h:373: multiple definition of `Modes'; dump1090.o:/home/test/autobuild/run/instance-0/output-1/build/dump1090-bff92c4ad772a0a8d433f788d39dae97e00e4dbe/dump1090.h:373: first defined here

/home/test/autobuild/run/instance-0/output-1/per-package/dump1090/host/bin/../lib/gcc/arm-buildroot-linux-gnueabihf/10.2.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: interactive.o:/home/test/autobuild/run/instance-0/output-1/build/dump1090-bff92c4ad772a0a8d433f788d39dae97e00e4dbe/dump1090.h:238: multiple definition of `tDF'; dump1090.o:/home/test/autobuild/run/instance-0/output-1/build/dump1090-bff92c4ad772a0a8d433f788d39dae97e00e4dbe/dump1090.h:238: first defined here
/home/test/autobuild/run/instance-0/output-1/per-package/dump1090/host/bin/../lib/gcc/arm-buildroot-linux-gnueabihf/10.2.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: view1090.o:/home/test/autobuild/run/instance-0/output-1/build/dump1090-bff92c4ad772a0a8d433f788d39dae97e00e4dbe/dump1090.h:373: first defined here

Fixes:

• http://autobuild.buildroot.org/results/88dc97fcaa649014edb3b54a5dd4bd8ec4715bbd

Signed-off-by: Fabrice Fontaine [email protected]

[DozerEng]

This fixed work great, thanks!

[chfour]

Worked for me too. Thanks! I hope this gets merged soon.

[ffontaine]

Unfortunately, this repository seems pretty much dead (no commit since 2014 ...)

[chfour]

Do you know of any, more active forks? Both the original and this seem to have a lot of open pull requests. That said, this one is still miles better than the original

[ffontaine]

This fork seems active: https://github.com/flightaware/dump1090.

[rbrandenburger]

Thank you for this fix!

[dmpossa]

Thanks! Worked for me.