% <userinput>scons -Q --debug=stacktrace</userinput>
scons: *** Source `prog.c' not found, needed by target `prog.o'. Stop.
scons: internal stack trace:
- File "bootstrap/src/engine/SCons/Job.py", line 131, in start
+ File "bootstrap/src/engine/SCons/Job.py", line 187, in start
File "bootstrap/src/engine/SCons/Script/Main.py", line 169, in prepare
- File "bootstrap/src/engine/SCons/Taskmaster.py", line 169, in prepare
- File "bootstrap/src/engine/SCons/Node/FS.py", line 2551, in prepare
- File "bootstrap/src/engine/SCons/Node/__init__.py", line 349, in prepare
+ File "bootstrap/src/engine/SCons/Taskmaster.py", line 184, in prepare
+ File "bootstrap/src/engine/SCons/Executor.py", line 171, in prepare
</screen>
<para>
<screen>
% <userinput>scons -Q --taskmastertrace=- prog</userinput>
- Taskmaster: 'prog': children:
- ['prog.o']
- waiting on unfinished children:
- ['prog.o']
- Taskmaster: 'prog.o': children:
- ['inc.h', 'prog.c']
- waiting on unfinished children:
- ['inc.h', 'prog.c']
- Taskmaster: 'prog.c': evaluating prog.c
- Taskmaster: 'inc.h': evaluating inc.h
- Taskmaster: 'prog.o': children:
- ['inc.h', 'prog.c']
- evaluating prog.o
+
+ Taskmaster: Looking for a node to evaluate
+ Taskmaster: Considering node <no_state 'prog'> and its children:
+ Taskmaster: <no_state 'prog.o'>
+ Taskmaster: Considering node <no_state 'prog.o'> and its children:
+ Taskmaster: <no_state 'prog.c'>
+ Taskmaster: <no_state 'inc.h'>
+ Taskmaster: Considering node <no_state 'prog.c'> and its children:
+ Taskmaster: Evaluating <pending 'prog.c'>
+
+ Taskmaster: Looking for a node to evaluate
+ Taskmaster: Considering node <no_state 'inc.h'> and its children:
+ Taskmaster: Evaluating <pending 'inc.h'>
+
+ Taskmaster: Looking for a node to evaluate
+ Taskmaster: Considering node <pending 'prog.o'> and its children:
+ Taskmaster: <up_to_date 'prog.c'>
+ Taskmaster: <up_to_date 'inc.h'>
+ Taskmaster: Evaluating <pending 'prog.o'>
cc -o prog.o -c -I. prog.c
- Taskmaster: 'prog': children:
- ['prog.o']
- evaluating prog
+
+ Taskmaster: Looking for a node to evaluate
+ Taskmaster: Considering node <pending 'prog'> and its children:
+ Taskmaster: <executed 'prog.o'>
+ Taskmaster: Evaluating <pending 'prog'>
cc -o prog prog.o
+
+ Taskmaster: Looking for a node to evaluate
+ Taskmaster: No candidate anymore.
</screen>
<para>