Referring to my question about wx - i did realize that one has to build wxWidgets from source and than install this build which will contain , compiler and setup header files .
So do the following :
1. Download the latest stable source for the platform to required :
http://www.wxwidgets.org/downloads2. Build the source as per the graphical interface - in my case GTK for F20
yum install gtk+-devel.x86_64
this will install GTK3 dev
3. In the extracted folder of wx source the doc folder contains various docs but to find
the installation instruction goto folder with the desired graphical interface - in my case gtk
/wxWidgets-3.0.1/docs/gtk
4. Follow the instructions to build the wx in the file install.txt
Last but not the least would have been very usefull if in the steps to build the plugin is added the requirement for wx build
