A couple more programs that hang, in case they help.

-- 
 Min Sik Kim


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#include <stdlib.h>
#include <signal.h>
#include <unistd.h>

static volatile int handler_done = 0;

void handler(int sig)
{
    handler_done = 1;
    return;
}

int main(int argc, char *argv[])
{
  signal(SIGUSR1, handler);
  kill(getpid(), SIGUSR1);
  while (!handler_done)
    /*nop*/;
  exit(0);
}
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#include <termcap.h>

main()
{
    int r = tgetent((char*)0, "vt100");
    return r;
}
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