Thanks for the reply...
Do you know the difference between error and warning?
yep. Now you've reminded me! :-)
Where is Code::Blocks installed? Edit2: On RP4 or other computer
What version is Code::Blocks?
What compiler are you using?
What is the Compiler version?
C::B is on the Pi v17.12
GCC v.8.3.0.
Edit: Add link on reporting issue
http://wiki.codeblocks.org/index.php?title=FAQ-Compiling_%28general%29#Q:_How_do_I_report_a_compilation_problem_on_the_forums.3F
Thanks for this. I'm new to programming in Linux and new to the Pi - I have done a fair bit of Basic, VB, C and C++ but a long time ago - that helped with sorting the missing libraries. Maybe I'm being a real Noob but I was expecting, perhaps naively, just to compile and run a simple GUI 'Hello world' app without too much [any?] input. However, when this new to a platform/app/environment, it's difficult to know what are noob issues and what is a genuine issue! 8-)
Still reading up - a lot! 8-)
Sorted my initial issue and am ignoring the warnings. Having sorted out missing libraries, now have new errors relating to undefined references. I know what these are but they seem extensive and relate to the window construction/size/position so perhaps I'll post using info from link you supplied.
Thanks again,
Dave