gtk2/demos/pixbuf-init.c

#include <glib.h>

#include <sys/stat.h>
#include <stdlib.h>

static gboolean
file_exists (const char *filename)
{
  struct stat statbuf;

  return stat (filename, &statbuf) == 0;
}

void
pixbuf_init (void)
{
  if (file_exists ("../gdk-pixbuf/libpixbufloader-pnm.la"))
    g_setenv ("GDK_PIXBUF_MODULE_FILE", "../gdk-pixbuf/gdk-pixbuf.loaders", TRUE);
}