[Qt-interest] qmake issue: getting rid of INSTALL_ROOT for install target

[Mandeep Sandhu]

Anyone got a chance to try this sample app?

Thanks,
-mandeep


On Wed, Jun 23, 2010 at 7:19 PM, Mandeep Sandhu
<mandeepsandhu.chd at gmail.com> wrote:
> Hi All,
>
> I've created a small test app which tries to simulate the issue of
> qmake prepending the path upto where the last level pro file is while
> generating the 'install' rule. There is no problem with the 'build'
> path.
>
> The build and install paths are exported by a top level Makefile
> (written manually, since it's supposed to build other non-qt apps
> too). Currently it's simply building the QT project "test" which
> further has the lib project under it.
>
> Initially I was exporting the build/install variables in the top-level
> Makefile like this:
>
> export BUILD_DIR_ROOT = $(PWD)/build
> export INSTALL_DIR_ROOT = $(PWD)/install
>
> I thought the $(PWD) might getting being passed as is to the last
> level Makefile where it gets expanded when make executes it.
>
> So I changed it to:
>
> export BUILD_DIR_ROOT = $(shell pwd)/build
> export INSTALL_DIR_ROOT = $(shell pwd)/install
>
> So that the variables are populated with the pwd value _before_ they
> get exported. But somehow the last level Makefile of lib still has the
> install rule as such:
>
> install_headers: first FORCE
>    @$(CHK_DIR_EXISTS)
> $(INSTALL_ROOT)/home/mandeep/work/install-issue/test/lib/$(INSTALL_DIR_ROOT)/testlib/include/
> || $(MKDIR) $(INSTALL_ROOT)/home/mandeep/work/install-issue/test/lib/$(INSTALL_DIR_ROOT)/testlib/include/
>
> The problem is "/home/mandeep/work/install-issue/test/lib/" getting
> prepended before the INSTALL_DIR_ROOT var exported by the top-level.
> Why is this happening?
>
> Can someone try it out on their system and let me know if the issue
> exists there too or point out the problem with the make setup?
> Thanks for your time.
>
> This app will work on Linux (I'm running it on Ubuntu 10.04).
>
> -mandeep
>
>> I'll make a sample app to replicate this issue and post the src here.
>> Lets see if its something specific to my setup alone.
>>
>> Thanks as always.
>>
>> Regards,
>> -mandeep
>>
>>>
>>>>
>>>> Thanks,
>>>> -mandeep
>>>>
>>>>
>>>> On Tue, Jun 22, 2010 at 1:53 PM, Mandeep Sandhu
>>>>
>>>> <mandeepsandhu.chd at gmail.com> wrote:
>>>> > Hi All,
>>>> >
>>>> > I have a simple .pro firle for my lib. Here's the relevant bit:
>>>> >
>>>> > mylib.pro
>>>> > ========
>>>> > include (common.pri)
>>>> >
>>>> > TARGET = mylib
>>>> > ...
>>>> > ...
>>>> > INSTALLPATH     = $$INSTALLDIR/$$TARGET
>>>> > target.path     = $$INSTALLPATH/lib
>>>> > headers.path    = $$INSTALLPATH/include
>>>> > headers.files   = <header file names>
>>>> >
>>>> > INSTALLS       += headers target
>>>> >
>>>> >
>>>> > common.pri
>>>> > ==========
>>>> > ...
>>>> > INSTALLDIR = /home/me/test/install
>>>> >
>>>> > This generates a makefile which has a install rule, which is causing
>>>> > me problems. I'm posting a snippet of the header install target:
>>>> >
>>>> > install_headers: first FORCE
>>>> >    @$(CHK_DIR_EXISTS)
>>>> > $(INSTALL_ROOT)/home/me/test/mylib/src//home/me/test/install/include/
>>>> >
>>>> > || $(MKDIR)
>>>> > || $(INSTALL_ROOT)/home/me/test/mylib/src//home/me/test/install/include/
>>>> >
>>>> > This causes make to install stuff in the src dir (where Makefile is)
>>>> > and NOT under /home/me/test/install!!!
>>>> >
>>>> > Why does qmake prepend $(INSTALL_ROOT)/$(PWD) to the install target?
>>>> > Is there a way to alter this behavior?
>>>> >
>>>> > Basically I would like to use absolute paths for specifying my build
>>>> > and install dirs. If I use relative paths then it's not a problem, but
>>>> > then I have to prepend "../" each time I go into a subdir (which looks
>>>> > messy and error prone).
>>>> >
>>>> > Googling revealed a similar problem related long ago:
>>>> > http://lists.trolltech.com/pipermail/qt-interest/2009-February/002009.htm
>>>> > l (the associated issue reported -
>>>> > http://bugreports.qt.nokia.com/browse/QTBUG-3650)
>>>> >
>>>> > What are the other alternatives for using absolute paths for install
>>>> > directive using .pro file (other than altering the makefile with some
>>>> > external script)?
>>>> >
>>>> > Any pointers will be appreciated.
>>>> >
>>>> > Thanks,
>>>> > -mandeep
>>>
>>> --
>>> Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
>>>  Senior Product Manager - Nokia, Qt Development Frameworks
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>>
>