ubuntu 20.04 compiler problem?

[R C]

I have an SD card for each,  as well the 64 bit as 32 bit Ubuntu 20.04.


I ran into issues as described earlier, compiling someone's code on 
Ubuntu 64-bit, however, it does compile on Ubuntu 20.04 32-bit, which I 
thought was odd, or maybe a bug?


Ron


On 9/25/20 7:54 AM, Peter Silva wrote:
> If you are able to replace the OS, I am running ubuntu-20.04 64bit on 
> an rpi3, so you will get natural 64bit compilations that way.
> I have compiled some apps developed for amd64, and other than a bug in 
> a dependency library, it is fine.
>
>
> On Fri, Sep 25, 2020 at 9:44 AM R C <cjvijf at gmail.com 
> <mailto:cjvijf at gmail.com>> wrote:
>
>     well.  I'd prefer to compile it as a 64 bit application, on a 64
>     bit OS.
>
>     I could compile it as a 32 bit application, running on Ubuntu 64
>     bit, but that doesn't make a whole lot of sense.
>
>     it actually compiles on a RPI4, with 32 bit Ubuntu installed, that
>     actually surprised me.
>
>
>     Ron
>
>
>
>     On 9/25/20 3:13 AM, Oliver Grawert wrote:
>>     hi,
>>     Am Donnerstag, den 24.09.2020, 23:34 -0600 schrieb R C:
>>
>>>     I am trying to compile something, on Ubuntu 20.04 ...
>>     ...
>>>     arm-linux-gnueabihf-g++
>>     ...
>>>     and actually, it is declared in ... aarch64-linux-gnu/ ...
>>>
>>     is your aim to actually build 32bit arm (armhf) stuff for a 64bit arm
>>     (aarch64) architecture or are you trying to cross build for armhf ?
>>     then you probably need also the 32bit headers installed ...
>>
>>     ciao
>>     	oli
>>
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