cmake does not work

[Tomaz Canabrava]

I don't seem to find the -fPIC there... put it. :)

On Thu, Jul 10, 2014 at 12:29 PM, Devanshu Jain
<devanshu.jain919 at gmail.com> wrote:
> Hi Tomaz,
> The CXX_COMPILER_FLAGS part of cmakeLists.txt looks like:
>
> ********-----------------********
>
> include(CheckCXXCompilerFlag)
> CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
> CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
> if(COMPILER_SUPPORTS_CXX11)
>     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
> elseif(COMPILER_SUPPORTS_CXX0X)
>     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
> else()
>         message(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++11
> support. Please use a different C++ compiler.")
> endif()
>
> *************---------------------************
>
>  How should I add fPIC to this.
>
>
>
>
> On Thu, Jul 10, 2014 at 8:51 PM, Tomaz Canabrava <tcanabrava at kde.org> wrote:
>>
>> On Thu, Jul 10, 2014 at 12:17 PM, Devanshu Jain
>> <devanshu.jain919 at gmail.com> wrote:
>> > I already tried that but I think cmake does not realise -fPIC/fPIE as a
>> > valid option. So it considers that a file exists with the same name and
>> > shows me the following error:
>> > CMake Error: The source directory
>> > "/home/devanshu/Documents/PMC/plasma-mediacenter/build/-fPIC" does not
>> > exist.
>>
>> What? no no no,
>> You must add -fPIC as the CXX_COMPILER_FLAGS, how's your CMakeLists.txt?
>> It seems that you are adding -fPIC at the wrong location.
>>
>> >
>> > On Thu, Jul 10, 2014 at 8:41 PM, Tomaz Canabrava <tcanabrava at kde.org>
>> > wrote:
>> >>
>> >> Devanshu,
>> >>
>> >> I know it's frustrating to begin in a very complex and huge software
>> >> as KDE and Plasma, belive me - this happened to me 6 years ago.
>> >> It's very important to try to understand the errors that you have
>> >> before asking for help, really. Holding hands is cool but not the most
>> >> efficient way to learn.
>> >>
>> >> for instance, in the second one
>> >>
>> >>  /usr/include/qt5/QtCore/
>> >> qglobal.h:1008:4: error: #error "You must build your code with
>> >> position independent code if Qt was built with -reduce-relocations. "
>> >> "Compile your code with -fPIC or -fPIE."
>> >>  #  error "You must build your code with position independent code if
>> >> Qt was built with -reduce-relocations. "\
>> >>
>> >> This means that your Qt was build with -reduce-relocations and you
>> >> must compile your code with -fPIC , as the error says.
>> >> so, go to your CMake and add -fPIC to the CXX_COMPILER_FLAGS , and try
>> >> again. :)
>> >>
>> >> Tomaz
>> >> _______________________________________________
>> >> Plasma-devel mailing list
>> >> Plasma-devel at kde.org
>> >> https://mail.kde.org/mailman/listinfo/plasma-devel
>> >
>> >
>> >
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>> >
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>
>
>
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