Merge branch 'warnings'

19 files changed, 129 insertions, 74 deletions

diff --git a/gnuradio-core/src/lib/filter/gr_pfb_arb_resampler_ccf.cc b/gnuradio-core/src/lib/filter/gr_pfb_arb_resampler_ccf.cc
index 399632003..59b76a6f0 100644
--- a/gnuradio-core/src/lib/filter/gr_pfb_arb_resampler_ccf.cc
+++ b/gnuradio-core/src/lib/filter/gr_pfb_arb_resampler_ccf.cc
@@ -71,7 +71,7 @@ gr_pfb_arb_resampler_ccf::gr_pfb_arb_resampler_ccf (float rate,
 
   // Create an FIR filter for each channel and zero out the taps
   std::vector<float> vtaps(0, d_int_rate);
-  for(int i = 0; i < d_int_rate; i++) {
+  for(unsigned int i = 0; i < d_int_rate; i++) {
     d_filters[i] = gr_fir_util::create_gr_fir_ccf(vtaps);
     d_diff_filters[i] = gr_fir_util::create_gr_fir_ccf(vtaps);
   }
@@ -97,8 +97,6 @@ gr_pfb_arb_resampler_ccf::create_taps (const std::vector<float> &newtaps,
 				       std::vector< std::vector<float> > &ourtaps,
 				       std::vector<gr_fir_ccf*> &ourfilter)
 {
-  int i,j;
-
   unsigned int ntaps = newtaps.size();
   d_taps_per_filter = (unsigned int)ceil((double)ntaps/(double)d_int_rate);
 
@@ -114,10 +112,10 @@ gr_pfb_arb_resampler_ccf::create_taps (const std::vector<float> &newtaps,
   }
   
   // Partition the filter
-  for(i = 0; i < d_int_rate; i++) {
+  for(unsigned int i = 0; i < d_int_rate; i++) {
     // Each channel uses all d_taps_per_filter with 0's if not enough taps to fill out
     ourtaps[d_int_rate-1-i] = std::vector<float>(d_taps_per_filter, 0);
-    for(j = 0; j < d_taps_per_filter; j++) {
+    for(unsigned int j = 0; j < d_taps_per_filter; j++) {
       ourtaps[d_int_rate - 1 - i][j] = tmp_taps[i + j*d_int_rate];
     }
     
@@ -173,7 +171,8 @@ gr_pfb_arb_resampler_ccf::general_work (int noutput_items,
     return 0;		     // history requirements may have changed.
   }
 
-  int i = 0, j, count = d_start_index;
+  int i = 0, count = d_start_index;
+  unsigned int j;
   gr_complex o0, o1;
 
   // Restore the last filter position
diff --git a/gnuradio-core/src/lib/filter/gr_pfb_interpolator_ccf.cc b/gnuradio-core/src/lib/filter/gr_pfb_interpolator_ccf.cc
index 8a0ad1c4c..e20bc38bb 100644
--- a/gnuradio-core/src/lib/filter/gr_pfb_interpolator_ccf.cc
+++ b/gnuradio-core/src/lib/filter/gr_pfb_interpolator_ccf.cc
@@ -132,7 +132,7 @@ gr_pfb_interpolator_ccf::work (int noutput_items,
   int i = 0, count = 0;
 
   while(i < noutput_items) {
-    for(int j = 0; j < d_rate; j++) {
+    for(unsigned int j = 0; j < d_rate; j++) {
       out[i] = d_filters[j]->filter(&in[count]);
       i++;
     }
diff --git a/gnuradio-core/src/lib/filter/gr_sincos.c b/gnuradio-core/src/lib/filter/gr_sincos.c
index 240a84852..57b26b22f 100644
--- a/gnuradio-core/src/lib/filter/gr_sincos.c
+++ b/gnuradio-core/src/lib/filter/gr_sincos.c
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2004 Free Software Foundation, Inc.
+ * Copyright 2004,2010 Free Software Foundation, Inc.
  * 
  * This file is part of GNU Radio
  * 
@@ -24,7 +24,9 @@
 #include "config.h"
 #endif
 
+#ifndef _GNU_SOURCE
 #define _GNU_SOURCE		// ask for GNU extensions if available
+#endif
 
 #include <gr_sincos.h>
 #include <math.h>
diff --git a/gnuradio-core/src/lib/general/gr_circular_file.cc b/gnuradio-core/src/lib/general/gr_circular_file.cc
index 468b49a10..c9222597a 100644
--- a/gnuradio-core/src/lib/general/gr_circular_file.cc
+++ b/gnuradio-core/src/lib/general/gr_circular_file.cc
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2002 Free Software Foundation, Inc.
+ * Copyright 2002,2010 Free Software Foundation, Inc.
  * 
  * This file is part of GNU Radio
  * 
@@ -66,7 +66,10 @@ gr_circular_file::gr_circular_file (const char *filename,
       exit (1);
     }
 #ifdef HAVE_MMAP	/* FIXME */
-    ftruncate (d_fd, size + HEADER_SIZE);
+    if(ftruncate (d_fd, size + HEADER_SIZE) != 0) {
+      perror (filename);
+      exit (1);
+    }
 #endif
   }
   else {
diff --git a/gnuradio-core/src/lib/general/gr_float_to_complex.cc b/gnuradio-core/src/lib/general/gr_float_to_complex.cc
index 89ef18869..a392abd06 100644
--- a/gnuradio-core/src/lib/general/gr_float_to_complex.cc
+++ b/gnuradio-core/src/lib/general/gr_float_to_complex.cc
@@ -52,12 +52,12 @@ gr_float_to_complex::work (int noutput_items,
 
   switch (input_items.size ()){
   case 1:
-    for (int j = 0; j < noutput_items*d_vlen; j++)
+    for (size_t j = 0; j < noutput_items*d_vlen; j++)
       out[j] = gr_complex (r[j], 0);
     break;
 
   case 2:
-    for (int j = 0; j < noutput_items*d_vlen; j++)
+    for (size_t j = 0; j < noutput_items*d_vlen; j++)
       out[j] = gr_complex (r[j], i[j]);
     break;
 
diff --git a/gnuradio-core/src/lib/gengen/gr_add_XX.cc.t b/gnuradio-core/src/lib/gengen/gr_add_XX.cc.t
index 58a25325a..0e8b23ee1 100644
--- a/gnuradio-core/src/lib/gengen/gr_add_XX.cc.t
+++ b/gnuradio-core/src/lib/gengen/gr_add_XX.cc.t
@@ -52,7 +52,7 @@ int
 
   int ninputs = input_items.size ();
 
-  for (int i = 0; i < noutput_items*d_vlen; i++){
+  for (size_t i = 0; i < noutput_items*d_vlen; i++){
     @I_TYPE@ acc = ((@I_TYPE@ *) input_items[0])[i];
     for (int j = 1; j < ninputs; j++)
       acc += ((@I_TYPE@ *) input_items[j])[i];
diff --git a/gnuradio-core/src/lib/gengen/gr_divide_XX.cc.t b/gnuradio-core/src/lib/gengen/gr_divide_XX.cc.t
index 1200145fa..ea245b57b 100644
--- a/gnuradio-core/src/lib/gengen/gr_divide_XX.cc.t
+++ b/gnuradio-core/src/lib/gengen/gr_divide_XX.cc.t
@@ -53,13 +53,13 @@ int
   int ninputs = input_items.size ();
 
   if (ninputs == 1){		// compute reciprocal
-    for (int i = 0; i < noutput_items*d_vlen; i++)
+    for (size_t i = 0; i < noutput_items*d_vlen; i++)
       *optr++ = (@O_TYPE@) ((@O_TYPE@) 1 /
 			    ((@I_TYPE@ *) input_items[0])[i]);
   }
 
   else {
-    for (int i = 0; i < noutput_items*d_vlen; i++){
+    for (size_t i = 0; i < noutput_items*d_vlen; i++){
       @I_TYPE@ acc = ((@I_TYPE@ *) input_items[0])[i];
       for (int j = 1; j < ninputs; j++)
 	acc /= ((@I_TYPE@ *) input_items[j])[i];
diff --git a/gnuradio-core/src/lib/gengen/gr_multiply_XX.cc.t b/gnuradio-core/src/lib/gengen/gr_multiply_XX.cc.t
index 13ec0c8b3..5d270c763 100644
--- a/gnuradio-core/src/lib/gengen/gr_multiply_XX.cc.t
+++ b/gnuradio-core/src/lib/gengen/gr_multiply_XX.cc.t
@@ -52,7 +52,7 @@ int
 
   int ninputs = input_items.size ();
 
-  for (int i = 0; i < noutput_items*d_vlen; i++){
+  for (size_t i = 0; i < noutput_items*d_vlen; i++){
     @I_TYPE@ acc = ((@I_TYPE@ *) input_items[0])[i];
     for (int j = 1; j < ninputs; j++)
       acc *= ((@I_TYPE@ *) input_items[j])[i];
diff --git a/gnuradio-core/src/lib/gengen/gr_sub_XX.cc.t b/gnuradio-core/src/lib/gengen/gr_sub_XX.cc.t
index f0ed75217..1dcdf81ad 100644
--- a/gnuradio-core/src/lib/gengen/gr_sub_XX.cc.t
+++ b/gnuradio-core/src/lib/gengen/gr_sub_XX.cc.t
@@ -53,12 +53,12 @@ int
   int ninputs = input_items.size ();
 
   if (ninputs == 1){		// negate
-    for (int i = 0; i < noutput_items*d_vlen; i++)
+    for (size_t i = 0; i < noutput_items*d_vlen; i++)
       *optr++ = (@O_TYPE@) -((@I_TYPE@ *) input_items[0])[i];
   }
 
   else {
-    for (int i = 0; i < noutput_items*d_vlen; i++){
+    for (size_t i = 0; i < noutput_items*d_vlen; i++){
       @I_TYPE@ acc = ((@I_TYPE@ *) input_items[0])[i];
       for (int j = 1; j < ninputs; j++)
 	acc -= ((@I_TYPE@ *) input_items[j])[i];
diff --git a/gnuradio-core/src/lib/runtime/gr_preferences.cc b/gnuradio-core/src/lib/runtime/gr_preferences.cc
index e0be2db62..5f7412248 100644
--- a/gnuradio-core/src/lib/runtime/gr_preferences.cc
+++ b/gnuradio-core/src/lib/runtime/gr_preferences.cc
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2003 Free Software Foundation, Inc.
+ * Copyright 2003,2010 Free Software Foundation, Inc.
  * 
  * This file is part of GNU Radio
  * 
@@ -77,11 +77,20 @@ gr_preferences::get (const char *key)
   static char buf[1024];
 
   FILE 	*fp = fopen (pathname (key), "r");
-  if (fp == 0)
+  if (fp == 0) {
+    perror (pathname (key));
     return 0;
+  }
 
   memset (buf, 0, sizeof (buf));
-  fread (buf, 1, sizeof (buf) - 1, fp);
+  size_t ret = fread (buf, 1, sizeof (buf) - 1, fp);
+  if(ret == 0) {
+    if(ferror(fp) != 0) {
+      perror (pathname (key));
+      fclose (fp);
+      return 0;
+    }
+  }
   fclose (fp);
   return buf;
 }
@@ -97,6 +106,13 @@ gr_preferences::set (const char *key, const char *value)
     return;
   }
 
-  fwrite (value, 1, strlen (value), fp);
+  size_t ret = fwrite (value, 1, strlen (value), fp);
+  if(ret == 0) {
+    if(ferror(fp) != 0) {
+      perror (pathname (key));
+      fclose (fp);
+      return;
+    }
+  }
   fclose (fp);
 };
diff --git a/gr-audio-jack/src/audio_jack_sink.cc b/gr-audio-jack/src/audio_jack_sink.cc
index 6e39135c9..f28fddc34 100644
--- a/gr-audio-jack/src/audio_jack_sink.cc
+++ b/gr-audio-jack/src/audio_jack_sink.cc
@@ -105,12 +105,17 @@ audio_jack_sink::audio_jack_sink (int sampling_rate,
     d_nunderuns (0)
 {
 #ifndef NO_PTHREAD
-    pthread_cond_init(&d_ringbuffer_ready, NULL);;
-    pthread_mutex_init(&d_jack_process_lock, NULL);
+  pthread_cond_init(&d_ringbuffer_ready, NULL);;
+  pthread_mutex_init(&d_jack_process_lock, NULL);
 #endif
-
+  
   // try to become a client of the JACK server
-  if ((d_jack_client = jack_client_new (d_device_name.c_str ())) == 0) {
+  jack_options_t options = JackNullOption;
+  jack_status_t status;
+  const char *server_name = NULL;
+  if ((d_jack_client = jack_client_open (d_device_name.c_str (),
+  					 options, &status,
+					 server_name)) == NULL) {
     fprintf (stderr, "audio_jack_sink[%s]: jack server not running?\n",
 	     d_device_name.c_str());
     throw std::runtime_error ("audio_jack_sink");
diff --git a/gr-audio-jack/src/audio_jack_source.cc b/gr-audio-jack/src/audio_jack_source.cc
index ca3df51d7..a92e970f5 100644
--- a/gr-audio-jack/src/audio_jack_source.cc
+++ b/gr-audio-jack/src/audio_jack_source.cc
@@ -110,7 +110,12 @@ audio_jack_source::audio_jack_source (int sampling_rate,
 #endif
 
   // try to become a client of the JACK server
-  if ((d_jack_client = jack_client_new (d_device_name.c_str ())) == 0) {
+  jack_options_t options = JackNullOption;
+  jack_status_t status;
+  const char *server_name = NULL;
+  if ((d_jack_client = jack_client_open (d_device_name.c_str (),
+  					 options, &status,
+					 server_name)) == NULL) {
     fprintf (stderr, "audio_jack_source[%s]: jack server not running?\n",
 	     d_device_name.c_str());
     throw std::runtime_error ("audio_jack_source");
diff --git a/gr-audio-portaudio/src/audio_portaudio_sink.cc b/gr-audio-portaudio/src/audio_portaudio_sink.cc
index 9a3baf40e..64e64ccf4 100644
--- a/gr-audio-portaudio/src/audio_portaudio_sink.cc
+++ b/gr-audio-portaudio/src/audio_portaudio_sink.cc
@@ -102,7 +102,10 @@ portaudio_sink_callback (const void *inputBuffer,
 
   else {			// underrun
     self->d_nunderuns++;
-    ::write(2, "aU", 2);	// FIXME change to non-blocking call
+    ssize_t r = ::write(2, "aU", 2);	// FIXME change to non-blocking call
+    if(r == -1) {
+      perror("audio_portaudio_source::portaudio_source_callback write error to stderr.");
+    }
 
     // FIXME we should transfer what we've got and pad the rest
     memset(outputBuffer, 0, nreqd_samples * sizeof(sample_t));
diff --git a/gr-audio-portaudio/src/audio_portaudio_source.cc b/gr-audio-portaudio/src/audio_portaudio_source.cc
index 23801a8bf..e508fda22 100644
--- a/gr-audio-portaudio/src/audio_portaudio_source.cc
+++ b/gr-audio-portaudio/src/audio_portaudio_source.cc
@@ -105,7 +105,10 @@ portaudio_source_callback (const void *inputBuffer,
 
   else {			// overrun
     self->d_noverruns++;
-    ::write(2, "aO", 2);	// FIXME change to non-blocking call
+    ssize_t r = ::write(2, "aO", 2);	// FIXME change to non-blocking call
+    if(r == -1) {
+      perror("audio_portaudio_source::portaudio_source_callback write error to stderr.");
+    }
 
     self->d_ringbuffer_ready = false;
     self->d_ringbuffer_cond.notify_one();  // Tell the sink to get going!
diff --git a/gr-msdd6000/src/msdd_rs_source_simple.cc b/gr-msdd6000/src/msdd_rs_source_simple.cc
index c44808f51..70e692d83 100644
--- a/gr-msdd6000/src/msdd_rs_source_simple.cc
+++ b/gr-msdd6000/src/msdd_rs_source_simple.cc
@@ -64,7 +64,10 @@ msdd_rs_source_simple::work (int noutput_items,
 	/* Read a buffer out -- looking at UDP payload at this point.*/
 	rcv->read( &buffer[0], BUF_LEN );
 	
-	int seq = *((int*) &buffer[2]);
+	//int seq = *((int*) &buffer[2]);
+	int seq;
+	memcpy(&seq, &buffer[2], 4*sizeof(char));
+
 	char type = buffer[0];
 	//printf("Sequence %d\n",seq);
 	
diff --git a/gr-msdd6000/src/msdd_source_simple.cc b/gr-msdd6000/src/msdd_source_simple.cc
index 076a305f1..20b15c43d 100644
--- a/gr-msdd6000/src/msdd_source_simple.cc
+++ b/gr-msdd6000/src/msdd_source_simple.cc
@@ -64,7 +64,9 @@ msdd_source_simple::work (int noutput_items,
     char buffer[BUF_LEN];
     rcv->read( &buffer[0], BUF_LEN );
 
-    int seq = *((int*) &buffer[2]);
+    //int seq = *((int*) &buffer[2]);
+    int seq;
+    memcpy(&seq, &buffer[2], 4*sizeof(char));
 
     if(d_lastseq == -MSDD_COMPLEX_SAMPLES_PER_PACKET){
       // not started case
diff --git a/gr-trellis/src/lib/fsm.cc b/gr-trellis/src/lib/fsm.cc
index c65b13456..5950b56b9 100644
--- a/gr-trellis/src/lib/fsm.cc
+++ b/gr-trellis/src/lib/fsm.cc
@@ -86,16 +86,30 @@ fsm::fsm(const char *name)
   if((fsmfile=fopen(name,"r"))==NULL) 
     throw std::runtime_error ("fsm::fsm(const char *name): file open error\n");
     //printf("file open error in fsm()\n");
+
+  if(fscanf(fsmfile,"%d %d %d\n",&d_I,&d_S,&d_O) == EOF) {
+    if(ferror(fsmfile) != 0)
+      throw std::runtime_error ("fsm::fsm(const char *name): file read error\n");
+  }
   
-  fscanf(fsmfile,"%d %d %d\n",&d_I,&d_S,&d_O);
   d_NS.resize(d_I*d_S);
   d_OS.resize(d_I*d_S);
 
   for(int i=0;i<d_S;i++) {
-    for(int j=0;j<d_I;j++) fscanf(fsmfile,"%d",&(d_NS[i*d_I+j]));
+    for(int j=0;j<d_I;j++) {
+      if(fscanf(fsmfile,"%d",&(d_NS[i*d_I+j])) == EOF) {
+	if(ferror(fsmfile) != 0)
+	  throw std::runtime_error ("fsm::fsm(const char *name): file read error\n");
+      }
+    }
   }
   for(int i=0;i<d_S;i++) {
-    for(int j=0;j<d_I;j++) fscanf(fsmfile,"%d",&(d_OS[i*d_I+j]));
+    for(int j=0;j<d_I;j++) {
+      if(fscanf(fsmfile,"%d",&(d_OS[i*d_I+j])) == EOF) {
+	if(ferror(fsmfile) != 0)
+	  throw std::runtime_error ("fsm::fsm(const char *name): file read error\n");
+      }
+    }
   }
  
   generate_PS_PI();
diff --git a/gr-trellis/src/lib/interleaver.cc b/gr-trellis/src/lib/interleaver.cc
index 077416f80..ff15eeadc 100644
--- a/gr-trellis/src/lib/interleaver.cc
+++ b/gr-trellis/src/lib/interleaver.cc
@@ -75,11 +75,20 @@ interleaver::interleaver(const char *name)
     throw std::runtime_error ("file open error in interleaver()");
     //printf("file open error in interleaver()\n");
   
-  fscanf(interleaverfile,"%d\n",&d_K);
+  if(fscanf(interleaverfile,"%d\n",&d_K) == EOF) {
+    if(ferror(interleaverfile) != 0)
+      throw std::runtime_error ("interleaver::interleaver(const char *name): file read error\n");
+  }
+
   d_INTER.resize(d_K);
   d_DEINTER.resize(d_K);
 
-  for(int i=0;i<d_K;i++) fscanf(interleaverfile,"%d",&(d_INTER[i]));
+  for(int i=0;i<d_K;i++) {
+    if(fscanf(interleaverfile,"%d",&(d_INTER[i])) == EOF) {
+      if(ferror(interleaverfile) != 0)
+	throw std::runtime_error ("interleaver::interleaver(const char *name): file read error\n");
+    }
+  }
   
   // generate DEINTER table
   for(int i=0;i<d_K;i++) {
diff --git a/usrp/doc/Doxyfile.in b/usrp/doc/Doxyfile.in
index 5043b1471..33c5bcf03 100644
--- a/usrp/doc/Doxyfile.in
+++ b/usrp/doc/Doxyfile.in
@@ -73,16 +73,6 @@ CREATE_SUBDIRS         = NO
 
 OUTPUT_LANGUAGE        = English
 
-# This tag can be used to specify the encoding used in the generated output. 
-# The encoding is not always determined by the language that is chosen, 
-# but also whether or not the output is meant for Windows or non-Windows users. 
-# In case there is a difference, setting the USE_WINDOWS_ENCODING tag to YES 
-# forces the Windows encoding (this is the default for the Windows binary), 
-# whereas setting the tag to NO uses a Unix-style encoding (the default for 
-# all platforms other than Windows).
-
-USE_WINDOWS_ENCODING   = NO
-
 # If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will 
 # include brief member descriptions after the members that are listed in 
 # the file and class documentation (similar to JavaDoc). 
@@ -167,13 +157,6 @@ JAVADOC_AUTOBRIEF      = NO
 
 MULTILINE_CPP_IS_BRIEF = NO
 
-# If the DETAILS_AT_TOP tag is set to YES then Doxygen 
-# will output the detailed description near the top, like JavaDoc.
-# If set to NO, the detailed description appears after the member 
-# documentation.
-
-DETAILS_AT_TOP         = YES
-
 # If the INHERIT_DOCS tag is set to YES (the default) then an undocumented 
 # member inherits the documentation from any documented member that it 
 # re-implements.
@@ -1118,32 +1101,40 @@ DOT_PATH               =
 
 DOTFILE_DIRS           = 
 
-# The MAX_DOT_GRAPH_WIDTH tag can be used to set the maximum allowed width 
-# (in pixels) of the graphs generated by dot. If a graph becomes larger than 
-# this value, doxygen will try to truncate the graph, so that it fits within 
-# the specified constraint. Beware that most browsers cannot cope with very 
-# large images.
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of
+# nodes that will be shown in the graph. If the number of nodes in a graph
+# becomes larger than this value, doxygen will truncate the graph, which is
+# visualized by representing a node as a red box. Note that doxygen if the
+# number of direct children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note
+# that the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
 
-MAX_DOT_GRAPH_WIDTH    = 1024
+DOT_GRAPH_MAX_NODES    = 50
 
-# The MAX_DOT_GRAPH_HEIGHT tag can be used to set the maximum allows height 
-# (in pixels) of the graphs generated by dot. If a graph becomes larger than 
-# this value, doxygen will try to truncate the graph, so that it fits within 
-# the specified constraint. Beware that most browsers cannot cope with very 
-# large images.
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the
+# graphs generated by dot. A depth value of 3 means that only nodes reachable
+# from the root by following a path via at most 3 edges will be shown. Nodes
+# that lay further from the root node will be omitted. Note that setting this
+# option to 1 or 2 may greatly reduce the computation time needed for large
+# code bases. Also note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
 
-MAX_DOT_GRAPH_HEIGHT   = 1024
+MAX_DOT_GRAPH_DEPTH    = 0
 
-# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the 
-# graphs generated by dot. A depth value of 3 means that only nodes reachable 
-# from the root by following a path via at most 3 edges will be shown. Nodes that 
-# lay further from the root node will be omitted. Note that setting this option to 
-# 1 or 2 may greatly reduce the computation time needed for large code bases. Also 
-# note that a graph may be further truncated if the graph's image dimensions are 
-# not sufficient to fit the graph (see MAX_DOT_GRAPH_WIDTH and MAX_DOT_GRAPH_HEIGHT). 
-# If 0 is used for the depth value (the default), the graph is not depth-constrained.
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not
+# seem to support this out of the box. Warning: Depending on the platform used,
+# enabling this option may lead to badly anti-aliased labels on the edges of
+# a graph (i.e. they become hard to read).
 
-MAX_DOT_GRAPH_DEPTH    = 0
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10)
+# support this, this feature is disabled by default.
+
+DOT_MULTI_TARGETS      = YES
 
 # If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will 
 # generate a legend page explaining the meaning of the various boxes and