Quoting Eric Engestrom (2017-10-18 14:48:49) > On Wednesday, 2017-10-18 18:45:19 +0000, Nicholas Miell wrote: > > On 10/17/2017 12:21 PM, Dylan Baker wrote: > > > +<p> > > > +To see a description of your options you can run "meson configure". This > > > will > > > +show your meson project configuration options as well as your local > > > +configuration options. One meson option to be aware of is that meson's > > > default > > > +build type is "debug" (-O0 -g on gcc/clang). > > > +</p> > > > + > > > +<pre> > > > + meson configure build > > > +</pre> > > > + > > > > There should probably be a warning here about how there's no way to export a > > build configuration and how every minor or point update of meson requires > > you to delete your build directories and reconfigure everything from > > scratch. > > Agreed, the delete & reconfigure thing is really annoying, I'm hoping > this will be fixed eventually :/ > > As for exporting the config, I'm actually working on this area of > meson's code right now, it would be quite easy for me to add a 'dump' > feature. > I'm guessing something like autotool's `./config.status --config` that > can just be fed back to the next run of `meson` would be good? > > I haven't actually yet figured out if I can only print the options that > don't have their default value, so what I can do for now is a trivial > 'dump all the current values'. Would that be interesting to you?
I don't think that the meson IR has an concept of default values for options,
the interpreter just passes the default value as the value if one isn't given. I
do think this is a nice feature, and I was thinking about doing it myself, once
the 0.43.1 release happens and upstream starts pulling feature requests again.
One though I had was just to save the command line options in a text file so you
could do something like:
meson build-1.0 `cat build-0.9/options.txt`
Dylan
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