[CMake] removing -Dtarget_EXPORTS (workaround)

[Alexandru Ciobanu]

Hi!

I am posting the workaround I have found.

Using the following command:
    set_target_properties ( mytgt PROPERTIES LINK_FLAGS DEFINE_SYMBOL "" )

I get:
   icpc ...FLAGS... -create-pch my.pchi        ( create )
   icpc -D ...FLAGS... -use-pch my.pchi        ( use )
which is ok with the intel compiler.

The -D seems to not bother it.

Alex Ciobanu


Alexandru Ciobanu wrote:
> Hi!
>
> Is there a way to remove -Dtarget_EXPORTS from the compile flags?
>
> I know it has its utility for shared libs, but in my case it does not
> allow me to use Precompiled Headers ( with Intel C++ Compiler ).
>
> This specific compiler wants to have exactly the same flags when
> creating and using precompiled headers, e.g.:
>    icpc ...FLAGS... -create-pch my.pchi   ( create )
>    icpc ...FLAGS... -use-pch my.pchi        ( use )
>
> CMake makes it look like this:
>    icpc ...FLAGS... -create-pch my.pchi                              ( 
> create )
>    icpc -Dmy_EXPORTS ...FLAGS... -use-pch my.pchi        ( use )
>
> Which results in the Intel Compiler warning:
> Warning #672: the command line options do not match those used when 
> precompiled header file "my.pchi" was created
>
> So how do I remove/disable that flag?
>
> Alex Ciobanu
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