building rak2247_usb on debian buster failed

[przemekgalazka]

Hello,

as probably in Debian buster, the lib libftdi-dev has changed and tag v4.2.8 is not building on this newest Debian. It is building on stretch version.

We get errros as follow: /usr/bin/ld: [main] fast.o:/opt/lora-rak-gateway/dev/rak_common_for_gateway/lora/rak2247_usb/libmpsse/src/mpsse.h:221: multiple definition of fast_rw_buf'; [main] mpsse.o:/opt/lora-rak-gateway/dev/rak_common_for_gateway/lora/rak2247_usb/libmpsse/src/mpsse.h:221: first defined here [main] [main] [main] /usr/bin/ld: [main] support.o:/opt/lora-rak-gateway/dev/rak_common_for_gateway/lora/rak2247_usb/libmpsse/src/mpsse.h:221: multiple definition offast_rw_buf'; mpsse.o:/opt/lora-rak-gateway/dev/rak_common_for_gateway/lora/rak2247_usb/libmpsse/src/mpsse.h:221: first defined here [main]
[main] collect2: error: ld returned 1 exit status [main]
[main] make: *** [Makefile:21: mpsse] Error 1

[cstratton]

This is a known issue in the external libmpsse repo that gets pulled in during the build

https://github.com/devttys0/libmpsse/issues/11

there are some ideas there.

It may be necessary to make a fork of that repo, apply a fix, and point this one to the fork instead of the original, or point to one of the various existing forks that includes a fix.