There's a closed pull request on the void-packages repository

pianobar: fix build
https://github.com/void-linux/void-packages/pull/36316

Description:
Currently build fails with:

```
In file included from src/ui.h:28,
                 from src/ui_act.c:34:
src/libpiano/piano.h:32:10: fatal error: gcrypt.h: No such file or directory
   32 | #include <gcrypt.h>
      |          ^~~~~~~~~~
compilation terminated.
make: *** [Makefile:109: src/ui_act.o] Error 1
make: *** Waiting for unfinished jobs....
In file included from src/main.c:51:
src/libpiano/piano.h:32:10: fatal error: gcrypt.h: No such file or directory
   32 | #include <gcrypt.h>
      |          ^~~~~~~~~~
compilation terminated.
make: *** [Makefile:109: src/main.o] Error 1
In file included from src/settings.c:38:
src/libpiano/piano.h:32:10: fatal error: gcrypt.h: No such file or directory
   32 | #include <gcrypt.h>
      |          ^~~~~~~~~~
compilation terminated.
make: *** [Makefile:109: src/settings.o] Error 1
In file included from src/player.h:37,
                 from src/player.c:61:
src/libpiano/piano.h:32:10: fatal error: gcrypt.h: No such file or directory
   32 | #include <gcrypt.h>
      |          ^~~~~~~~~~
compilation terminated.
make: *** [Makefile:109: src/player.o] Error 1
```

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