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Re: add '-pg' to compiler/linker

From: Ralf Wildenhues
Subject: Re: add '-pg' to compiler/linker
Date: Thu, 10 Nov 2005 19:12:57 +0100
User-agent: Mutt/1.5.11

Hi Steven,

* Steven Woody wrote on Thu, Nov 10, 2005 at 06:56:52PM CET:
> i have a main.cpp in top directory and some modules in sub-directories. each
> module compiled as a .a library and the main.cpp staticly linked with those
> .a's. it work no problem for compile/link.
> but, now i want to add gprof capability to the resulting executable. so i add
> '-pg' to _CXXFLAGS for each modules's as well as to the main
> program's  automake reported no error and produced an
> executable. but after i run the executable, there is no .out profile
> generated. so i think '-pg' flag has not take effect.

Hmm.  You should not have to modify any files at all for this.

Just, in a new build directory, do

  ../source/configure CXXFLAGS=-pg

and you should be set.  If you use more than one language, you may want
to add CFLAGS=-pg as well.

If that still doesn't work, maybe you should show a couple of compiler
commands executed by make.

Hmm, do you use libtool perchance?  Then, you might
  make LDFLAGS=-Wc,-pg
(this will be fixed in Libtool-1.5.22).


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