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Re: GNU M4 1.4.13 released (stable)

From: Bob Friesenhahn
Subject: Re: GNU M4 1.4.13 released (stable)
Date: Wed, 1 Apr 2009 14:59:58 -0500 (CDT)

On Wed, 1 Apr 2009, Eric Blake wrote:

At this point, it seems like it might be a good idea for the use of
'automake --silent-rules' to add a configure option that sets the default
state of the V make variable for a user's taste.  That is, you would still
have to request automake to issue silent-rules support, but once a project
has silent rule support, the user can still have the flexibility to choose
the default verbosity level that they are comfortable with.  Something
like './configure --disable-silent-rules' to request the V=1 behavior?

This requires that the user make a change to what they have already been doing. Software based on autotools should be benefiting from the long-term stable build environment and should not be requiring the user to notice that a change is required in order to obtain the behavior they are used to. It is not always possible for the user to make the change since the package may be built via OS-specific wrapper build scripts and so they have no way to enable the prior verbose builds. The basic principle of "least surprise" applies here.

At the moment there is not an obvious way to determine if a change is required other than to type 'make' and see what happens. If the build will take several hours and the user wants to see all the build steps, then the user would need to ^C the build and start over with new options (possibly doing 'make clean' first), or else already be aware of the special build syntax and supply it for every build from this time forward.

Bob Friesenhahn
GraphicsMagick Maintainer,

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