docs: make ./waf --doxygen-no-build actually work

Make doxygen.warnings.report.sh attempt to run print-introspected-doxygen,
but not fail if p-i-d hasn't been built.

doc/doxygen.conf

@@ -1,4 +1,4 @@
-## -*-sh-*-
+## -*- Mode:sh; indent-tabs-mode:nil -*-
 
 # Doxyfile 1.8.9.1
 
@@ -2075,7 +2075,9 @@ EXPAND_AS_DEFINED      = ATTRIBUTE_ACCESSOR_DEFINE \
                          ATTRIBUTE_VALUE_DEFINE \
                          ATTRIBUTE_VALUE_DEFINE_WITH_NAME \
                          ATTRIBUTE_VALUE_IMPLEMENT \
-                         ATTRIBUTE_VALUE_IMPLEMENT_WITH_NAME
+                         ATTRIBUTE_VALUE_IMPLEMENT_WITH_NAME \
+                         NS_UNUSED_GLOBAL \
+
 
 # If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
 # remove all references to function-like macros that are alone on a line, have

doc/doxygen.warnings.report.sh

@@ -93,14 +93,20 @@ function status_report
 {
     local status="$1"
     local long_msg="$2"
+    local exitonerr="${3:-yes}"
     if [ $status -eq 0 ]; then
 	verbose "$long_msg "  "done."
 	rm -f $VERBLOG
     else
-	verbose "$long_msg "  "FAILED.  Details:"
-	cat $VERBLOG
-	rm -f $VERBLOG
-	exit 1
+	if [ $exitonerr == "yes" ]; then
+	    verbose "$long_msg "  "FAILED.  Details:"
+	    cat $VERBLOG
+	    rm -f $VERBLOG
+	    exit 1
+	else
+	    verbose "$long_msg "  "FAILED, continuing"
+	    rm -f $VERBLOG
+	fi
     fi
 }
    
@@ -196,7 +202,11 @@ if [ $skip_doxy -eq 1 ]; then
 else
 
     if [ $skip_intro -eq 1 ]; then
-	verbose "" "Skipping ./waf build and print-introspected-doxygen."
+	verbose "" "Skipping ./waf build"
+	verbose -n "Trying print-introspected-doxygen..."
+	(cd "$ROOT" && ./waf --run-no-build print-introspected-doxygen >doc/introspected-doxygen.h >&6 2>&6 )
+	status_report $? "./waf --run print-introspected-doxygen" noexit
+	
     else
         # Run introspection, which may require a build
 	verbose -n "Building..."
@@ -204,8 +214,7 @@ else
 	status_report $? "./waf build"
 	verbose -n "Running print-introspected-doxygen..."
 	(cd "$ROOT" && ./waf --run print-introspected-doxygen >doc/introspected-doxygen.h >&6 2>&6 )
-	status_report $? "./waf --run print-introspected-doxygen"
-	
+	status_report $? "./waf --run print-introspected-doxygen"	
     fi
 
     # Modify doxygen.conf to generate all the warnings

wscript

@@ -1061,10 +1061,6 @@ def build(bld):
         _doxygen(bld, skip_pid=True)
         raise SystemExit(0)
 
-    if Options.options.docset_build:
-        _docset(bld)
-        raise SystemExit(0)
-
     if Options.options.run_no_build:
         # Check that the requested program name is valid
         program_name, dummy_program_argv = wutils.get_run_program(Options.options.run_no_build, wutils.get_command_template(bld.env))
@@ -1232,7 +1228,7 @@ class Ns3ShellContext(Context.Context):
         wutils.run_argv([shell], env, os_env)
 
 
-def _print_introspected_doxygen (bld):
+def _print_introspected_doxygen(bld):
     try:
         program_obj = wutils.find_program('print-introspected-doxygen', env)
     except ValueError: