I've tried those mods, and now I can send sysex through midiout under ALSA:

diff pd-0.40-3/src/m_pd.h pd-0.40-3_mod/src/m_pd.h 464a465

EXTERN int sys_midiapi;

diff pd-0.40-3/src/x_midi.c pd-0.40-3_mod/src/x_midi.c 7a8

#include "s_stuff.h"

657a659,661

#ifdef USEAPI_ALSA void sys_alsa_putmidibyte(int portno, int byte); #endif

660a665

681c686,695 < sys_putmidibyte(x->x_portno - 1, f); ---

#ifdef USEAPI_ALSA if (sys_midiapi == API_ALSA) // sys_midiapi is not defined in

x_mini...

  {
      sys_alsa_putmidibyte(x->x_portno - 1, f);
  } 
  else

#endif { sys_putmidibyte(x->x_portno -1 ,f); }

Please be tolerant, it's my first patch for pd (and my first reading of pd code...).

I don't know why Miller didn't used the sys_alsa_putmidibyte... Maybe are you trying to clarify the midi API...

But I needed sysexs :)