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[bug #18617] Better debugging facilities: tracing rule invocation.

From: Dave Korn
Subject: [bug #18617] Better debugging facilities: tracing rule invocation.
Date: Wed, 17 Sep 2008 14:26:33 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.7.12) Gecko/20050919 Firefox/1.0.7

Follow-up Comment #5, bug #18617 (project make):

I would like to draw the attention of everyone in this thread to

"Remake - GNU Make with comprehensible tracing and a debugger"

I find it an invaluable enhancement to make when debugging complex makefiles
full of generated code.  Give it a try: you won't look back once you've
discovered how much easier life is when you can single-step through the source
of a makefile, set breakpoints, inspect variables and see the return values
from called functions.


"It doesn't tell which the implicit rule is", are you sure?  The trace shows

> Trying implicit prerequisite `assert.cxx'.
> Found an implicit rule for 

Therefore the implicit rule it is referring to must be of the form

%.o: %.cxx 

mustn't it?


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