[Interest] Help a unix guy on windows qmake

[Elvis Stansvik]

Den ons 21 apr. 2021 kl 19:49 skrev Jason H <jhihn at gmx.com>:
>
>
>
> > Sent: Wednesday, April 21, 2021 at 1:14 PM
> > From: "Thiago Macieira" <thiago.macieira at intel.com>
> > To: interest at qt-project.org
> > Subject: Re: [Interest] Help a unix guy on windows qmake
> >
> > On Wednesday, 21 April 2021 09:54:09 PDT Jason H wrote:
> > > Now, when compiling, regardless of shadow build or not, refer to the libs by
> > > adding to the project: +++ project.pro
> > > + mingw {
> > > +     INCLUDEPATH += $PROJ/libraries/win/include
> > > +     LIBS += -L$PROJ/libraries/win/$ARCH -lvendor
> > > + }
> > >
> > > It seems that $PWD ${PWD} or whatever ($${PWD}?) refer to the build dir, be
> > > it shadow or not. I don't want to copy the libraries to the shadow dir in
> > > QMAKE_PRE_LINK because they *never* change.
> >
> > You're mixing environment variables and qmake variables. Qmake variables
> > always start with a double dollar sign and are expanded by qmake when it
> > writes the Makefile output. You can see their value with message().
> >
> > qmake does not expand environment variables at all.
> >
> > $ X=A qmake Y=b /dev/stdin -o /dev/null <<<'message(r = $X $$Y)'
> > Project MESSAGE: r = $X b
> >
> > The environment variables are written as-is to your Makefile. It's up to you
> > to write something that make will understand.
> >
> > $PROJ is not a valid environment variable expansion in Make.
>
>
> Right. I used $PROJ for illustrative purposes. I guess the flaw in my thinking
> is that when the shadow build is made, that there is some way to reference the
> original location( other than ../project_name
>
> Maybe all I need is:
> PROJ=../project

I think you'd need to use $$_PRO_FILE_PWD_ for it to work in a shadow build (?)

E.g. assuming

$PROJ/project.pro
$PROJ/libraries/win/include/mylib.h
$PROJ/libraries/win/x64/mylib.lib

Something like

mingw {
    INCLUDEPATH += $$_PRO_FILE_PWD_/libraries/win/include
    LIBS += $$_PRO_FILE_PWD_/libraries/win/x64
}

Elvis

>
> Thank you for example. Very enlightening.
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