Error while compiling ka9q server

[Jari Kiiski]

Hello!

Now i ran into a new problem. I try to install ka9q server with rtlsdr to a laptop running headless Ubuntu 25.04 server. Every time i try to compile ka9q server i these errors:

 make -f Makefile.linux
cc -DNDEBUG=1 -O3 -march=native -std=gnu11 -pthread -Wall -funsafe-math-optimizations -fno-math-errno -fcx-limited-range -D_GNU_SOURCE=1 -Wextra -MMD -MP    -c -o aprs.o aprs.c
In file included from aprs.c:26:
misc.h:160:21: error: static declaration of ‘sinpif’ follows non-static declaration
  160 | static inline float sinpif(float x){
      |                     ^~~~~~
In file included from aprs.c:19:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:81:1: note: previous declaration of ‘sinpif’ with type ‘float(float)’
   81 | __MATHCALL_VEC (sinpi,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
make: *** [<builtin>: aprs.o] Error 1

I have double checked and checked again that i do everything by instructions. Does anybody got any ideas what is wrong now?

73, de OH4NDu

[Mark Jessop]

Is this using the commits we recommend in our setup guide ( https://github.com/projecthorus/radiosonde_auto_rx/wiki/KA9Q%E2%80%90Radio-Setup-Notes ), or using the latest in the ka9q-radio repository?

If using an old commit, try the latest. If that still doesnt work, I'd suggest raising an issue on the ka9q-radio repository https://github.com/ka9q/ka9q-radio/issues

73

Mark

--
You received this message because you are subscribed to the Google Groups "radiosonde_auto_rx" group.
To unsubscribe from this group and stop receiving emails from it, send an email to radiosonde_auto...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/radiosonde_auto_rx/6d75f331-c653-4a9a-a1f3-fd01fb84adecn%40googlegroups.com.

[Mark Jessop]

OK, this is now a known issue with KA9Q-radio, and is being worked on.

- Old commits will not build on Debian 13 based systems (e.g. Ubuntu 25) due to glibc changes.

- The latest commits of ka9q-radio do build, but there's some behavioural issues with the band-scan data at the moment, resulting in it not working correctly.

I'm in discussions with Phil about how to best deal with this.

73

Mark VK5QI

[hb9tmc]

As a workaround until there is a solution you can comment out the lines 159 to 162 in misc.h like this:

// Sin(πf)
//static inline float sinpif(float x){
//  return sinf(x * M_PI);
//}

Then it should compile.

73
Stefan

[Phil Karn]

I fixed this in a recent patch. It happened because Debian Trixie adopted a new version of the math library that defined sinpif(), which I had defined as a macro. I don't make that much use of it, so it was easy to fix.

Phil

--

You received this message because you are subscribed to the Google Groups "radiosonde_auto_rx" group.
To unsubscribe from this group and stop receiving emails from it, send an email to radiosonde_auto...@googlegroups.com.

To view this discussion visit https://groups.google.com/d/msgid/radiosonde_auto_rx/3254daa8-50e8-4f08-9655-c45fc664ea57n%40googlegroups.com.