On 10/03/2020 11:20, Jesper Kaas wrote:
> On Tue, 10 Mar 2020 10:30:59 +0000, The Natural Philosopher
>  wrote:
>
>> Are these messages happening at compile time or at link time?
>>
>> I suspect its not that these are not defined in the header but that you
>> aren't linking in the wiringPi library at link time...
> Maybe I should not use Geany, but compile and link manually in a
> terminal window. Must find out how to do that then. Sorry for my
> incompetance.
>
> But I am using Geany, which under the "Build" main menu (among others)
> have the options Compile, Build, Make, Make Custom Target, Make Object
> and Execute.  No menu for linking. I am using Compile, Build and
> Execute. After your reply I also tried Make.
> I have now tried all the menu points listed above, with the following
> results:
> Compile, Make, Make Object all (with blink.c active in Geany) run
> successfully.
> Build gives the error messages described in my first message.
> Execute results in a terminal window with thism text:
> /tmp/geany_run_script_6LY5G0.sh: 7: /tmp/geany_run_script_6LY5G0.sh:
> ./blink: not found
>
> Geany uses these compile commands for C++:
> -Compile: g++ -Wall -c "%f"
> -Build: g++ -Wall -o "%e" "%f"

-Build needs a -lwiringPi

>
>
> ------------------
> (program exited with code: 127)
> Press return to continue
>
>


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