Install for Alpine Linux

[AlexCzar]

I'm running Alpine on my rpi 2B, can rpitx be installed there? Search came up empty. I inspected the installation script and it's a bit tricky, clones several repos, compiles stuff, requires dependencies which are either missing or maybe named differently on Alpine :| Edit: I've identified and installed appropriate dependencies, unfortunately compilation fails, see the comment below.

[mfalkvidd]

What happened when you tried?

[AlexCzar]

I haven't, it wouldn't have worked if I did, the first thing the installation script does is installing packages with apt, which isn't present on Alpine. I could've followed the script manually, but there are some packages needed which I'm unfamiliar with and which aren't present in Alpine, at least by the name in the installation script.

[mfalkvidd]

Could you list the missing packages? Maybe someone knows more about them.

[AlexCzar]

While writing an answer to your question, I did some more investigating and found the corresponding packages and installed them. Unfortunately, now I'm having issue compiling the components, starting with the csdr

; git clone https://github.com/F5OEO/csdr
; cd csdr
; make

Output

``` g++ -O3 -ffast-math -fdump-tree-vect-details -dumpbase dumpvect -mcpu=cortex-a7 -mfloat-abi=hard -mfpu=neon-vfpv4 -funsafe-math-optimizations -Wformat=0 nmux.cpp tsmpool.cpp -g -lm -lrt -lfftw3f -DUSE_FFTW -DLIBCSDR_GPL -DUSE_IMA_ADPCM -L. -lcsdr -lpthread -Wno-unused-result -o nmux nmux.cpp: In function 'int main(int, char**)': nmux.cpp:155:9: error: 'fd_set' was not declared in this scope 155 | fd_set select_fds; | ^~~~~~ nmux.cpp:179:26: error: 'select_fds' was not declared in this scope 179 | FD_ZERO(&select_fds); | ^~~~~~~~~~ nmux.cpp:179:17: error: 'FD_ZERO' was not declared in this scope 179 | FD_ZERO(&select_fds); | ^~~~~~~ nmux.cpp:180:17: error: 'FD_SET' was not declared in this scope; did you mean 'L_SET'? 180 | FD_SET(listen_socket, &select_fds); | ^~~~~~ | L_SET nmux.cpp:185:34: error: 'select' was not declared in this scope 185 | int select_ret = select(highfd, &select_fds, NULL, NULL, NULL); | ^~~~~~ nmux.cpp:190:21: error: 'FD_ISSET' was not declared in this scope; did you mean 'CPU_ISSET'? 190 | if( FD_ISSET(listen_socket, &select_fds) && ((new_socket = accept(listen_socket, (struct sockaddr*)&addr_cli, &addr_cli_len)) != -1) ) | ^~~~~~~~ | CPU_ISSET nmux.cpp:246:21: error: 'FD_ISSET' was not declared in this scope; did you mean 'CPU_ISSET'? 246 | if( FD_ISSET(STDIN_FILENO, &select_fds) ) | ^~~~~~~~ | CPU_ISSET make: *** [Makefile:60: nmux] Error 1 ```

and librpitx

; git clone https://github.com/F5OEO/librpitx
; cd librpitx/src
; make

Output

```text -- snip -- g++ -std=c++11 -Wall -O3 -Wno-unused-variable -I /opt/vc/include -std=c++11 -Wall -O3 -Wno-unused-variable -fPIC -c gpio.cpp gpio.cpp: In member function 'void clkgpio::SetppmFromNTP()': gpio.cpp:719:18: error: 'ntp_adjtime' was not declared in this scope; did you mean 'adjtime'? 719 | status = ntp_adjtime(&ntx); | ^~~~~~~~~~~ | adjtime make: *** [Makefile:21: gpio.o] Error 1 ```

[AlexCzar]

Looks like the problems are either caused by incompatibilities with musl, or maybe missing a dependency which isn't mentioned in the install.sh script, I don't know enough about C/C++/libc ecosystem to figure it out further.