username@raspi:~/pd-src/pd-else/Build $ cd /home/username/pd-src/pd-else
username@raspi:~/pd-src/pd-else $ cmake -BBuild -DPD_PATH="/home/username/pd-src/pd-0.51-4"
-- Configuring Opus
-- Configuring sfizz
-- Configuring ffmpeg
-- 318 coded objects (206 signal objects / 112 control objects)
-- 225 abstractions (87 signal objects / 138 control objects)
-- Merda modules: 22
-- Configuring done
-- Generating done
-- Build files have been written to: /home/username/pd-src/pd-else/Build
username@raspi:~/pd-src/pd-else $ cd Build
username@raspi:~/pd-src/pd-else/Build $ make
[  0%] Building C object CMakeFiles/else_shared.dir/Source/Shared/buffer.c.o
[  0%] Building C object CMakeFiles/else_shared.dir/Source/Shared/elsefile.c.o
[  0%] Building C object CMakeFiles/else_shared.dir/Source/Shared/libsamplerate/samplerate.c.o
[  0%] Building C object CMakeFiles/else_shared.dir/Source/Shared/libsamplerate/src_linear.c.o
[  0%] Building C object CMakeFiles/else_shared.dir/Source/Shared/libsamplerate/src_sinc.c.o
[  0%] Building C object CMakeFiles/else_shared.dir/Source/Shared/libsamplerate/src_zoh.c.o
[  1%] Building C object CMakeFiles/else_shared.dir/Source/Shared/magic.c.o
[  1%] Building C object CMakeFiles/else_shared.dir/Source/Shared/mifi.c.o
[  1%] Building C object CMakeFiles/else_shared.dir/Source/Shared/random.c.o
[  1%] Building C object CMakeFiles/else_shared.dir/Source/Shared/s_elseutf8.c.o
[  1%] Linking C shared library else/libelse_shared.so
[  1%] Built target else_shared
[  1%] Building C object CMakeFiles/above_tilde.dir/Source/Audio/above~.c.o
[  1%] Linking C shared library "else/above~.l_arm64"
[  1%] Built target above_tilde
[  1%] Building C object CMakeFiles/add_tilde.dir/Source/Audio/add~.c.o
[  1%] Linking C shared library "else/add~.l_arm64"
[  1%] Built target add_tilde
[  1%] Building C object CMakeFiles/adsr_tilde.dir/Source/Audio/adsr~.c.o
/home/username/pd-src/pd-else/Source/Audio/adsr~.c: In function ‘adsr_dsp’:
/home/username/pd-src/pd-else/Source/Audio/adsr~.c:191:20: error: ‘t_signal’ {aka ‘struct _signal’} has no member named ‘s_nchans’
  191 |     int chs = sp[0]->s_nchans;
      |                    ^~
/home/username/pd-src/pd-else/Source/Audio/adsr~.c:192:5: warning: implicit declaration of function ‘signal_setmultiout’ [-Wimplicit-function-declaration]
  192 |     signal_setmultiout(&sp[6], chs);
      |     ^~~~~~~~~~~~~~~~~~
/home/username/pd-src/pd-else/Source/Audio/adsr~.c:208:20: error: ‘t_signal’ {aka ‘struct _signal’} has no member named ‘s_nchans’
  208 |     int ch2 = sp[1]->s_nchans, ch3 = sp[2]->s_nchans, ch4 = sp[3]->s_nchans;
      |                    ^~
/home/username/pd-src/pd-else/Source/Audio/adsr~.c:208:43: error: ‘t_signal’ {aka ‘struct _signal’} has no member named ‘s_nchans’
  208 |     int ch2 = sp[1]->s_nchans, ch3 = sp[2]->s_nchans, ch4 = sp[3]->s_nchans;
      |                                           ^~
/home/username/pd-src/pd-else/Source/Audio/adsr~.c:208:66: error: ‘t_signal’ {aka ‘struct _signal’} has no member named ‘s_nchans’
  208 |     int ch2 = sp[1]->s_nchans, ch3 = sp[2]->s_nchans, ch4 = sp[3]->s_nchans;
      |                                                                  ^~
/home/username/pd-src/pd-else/Source/Audio/adsr~.c:209:20: error: ‘t_signal’ {aka ‘struct _signal’} has no member named ‘s_nchans’
  209 |     int ch5 = sp[4]->s_nchans, ch6 = sp[5]->s_nchans;
      |                    ^~
/home/username/pd-src/pd-else/Source/Audio/adsr~.c:209:43: error: ‘t_signal’ {aka ‘struct _signal’} has no member named ‘s_nchans’
  209 |     int ch5 = sp[4]->s_nchans, ch6 = sp[5]->s_nchans;
      |                                           ^~
/home/username/pd-src/pd-else/Source/Audio/adsr~.c: In function ‘adsr_tilde_setup’:
/home/username/pd-src/pd-else/Source/Audio/adsr~.c:303:25: error: ‘CLASS_MULTICHANNEL’ undeclared (first use in this function)
  303 |         sizeof(t_adsr), CLASS_MULTICHANNEL, A_GIMME, 0);
      |                         ^~~~~~~~~~~~~~~~~~
/home/username/pd-src/pd-else/Source/Audio/adsr~.c:303:25: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [CMakeFiles/adsr_tilde.dir/build.make:76: CMakeFiles/adsr_tilde.dir/Source/Audio/adsr~.c.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:946: CMakeFiles/adsr_tilde.dir/all] Error 2
make: *** [Makefile:156: all] Error 2