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List:       kde-devel
Subject:    Re: i thought "gmake" knows better than this! (building entire lib)
From:       Nasser <parallel.au () gmail ! com>
Date:       2006-09-24 9:15:39
Message-ID: d25049ac0609240215sd355891ge89bf8a3e9657d9a () mail ! gmail ! com
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ahh... i see.. yes, ofcourse, so thanks for pointing out that
modifying a header file will take longer to rebuild everything, that
makes sense :-)

now, i was actually modifying just the src/tools/moc/moc.cpp file, so
i was hoping that a lot less will get rebuilt..

now, could you please help me with yuor idea of "subprojects"?  i like
the idea of this, especially when you recommend i only recompile the
parts i modified (ie src/tools/moc folder)...

how do i set things up as a subproject? .. i guess i can import the
whole qt src into a kdevelop project? .. and from there... i will try
with a smaller project and develop from my "baby steps"

i need to try and find how to do subproject building, that would be great!

PS: how would i disable building the examples, etc again? .. is this
an argument to "configure" or is it more that i need to hack into the
Makefile?

cheers for all the help!

nasser


On 9/24/06, Andreas Pakulat <apaku@gmx.de> wrote:
> On 24.09.06 14:40:37, Nasser wrote:
> > i have a massive library that i'm compiling.. basically, the first
> > time i run "gmake", it takes about an hour to build... fair enough...
>
> That's not really a massive one, except you've got a super computer
> under your table ;)
>
> > now i modified ONE line in one of the files and ran gmake again...
> > it's still taking a real long time to build!
> >
> > i thought that it would pick up which file i modified, and only build
> > that (and the ones above it that depend on it)... but it seems to be
> > building everything again! :-(
>
> Did you modify a .h or .cpp? For the first one it's quite common that
> much get's rebuild, every file that includes this header needs
> rebuilding then.
>
> > am i going about the right way to build this library? .. by the way,
> > this massive library is Qt4 that i'm building.. i modified one of the
> > src files to test something..
>
> Hmm, did you disable building examples and demos? Also you can go to
> src/gui, src/core, ... and do a make and make install in there which
> also might save some time.
>
> Andreas
>
> --
> Cheer Up!  Things are getting worse at a slower rate.
>
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>
 
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