[fpc-pascal] Cannot build fpc on Raspberry Pi4B running PiOS 64 bit (aarch64 Linux)

[Bo Berglund]

>From the Lazarus list:

>Just a quick follow-up here:
>It seems like the fpc sources have not been updated with the solution to the bug
>discussed here:
>
>https://gitlab.com/freepascal.org/fpc/source/-/issues/39295
>
>This causes the build of Lazarus using fpcupdeluxe with the latest fpc 3.2.2 to
>fail because of a problem with __libc_csu_init during linking.
>
>Apparently it is fixed in non-released sources of fpc which we are waiting
>for...

The GitLab ticket was opened 2 years ago:
https://gitlab.com/freepascal.org/fpc/source/-/issues/39295

According to a post on the Lazarus forum the fix that solves the fatal error
during fpc build on 64 bit aarch64 Linux (like on Raspberry Pi4B with Pi-OS 64
bit) has *not* been ported to the target aarch64 Linux, only to powerpc.

https://forum.lazarus.freepascal.org/index.php/topic,34645.msg496883.html#msg496883

So I am sitting here unable to run Lazarus/FPC on the RPi4B with the latest 64
bit Pi-OS...

Is any solution to this problem in the works?
I have tried every fpc source release from 3.2.2 up to trunk with the exact same
result (here from a build try on trunk):

/bin/ld:
/home/bosse/devtools/lazarus/2.2.6/fpcsrc/rtl/units/aarch64-linux/cprt0.o: in
function `_start':
(.text+0x54): undefined reference to `__libc_csu_init'
/bin/ld: (.text+0x58): undefined reference to `__libc_csu_init'
/bin/ld: (.text+0x5c): undefined reference to `__libc_csu_fini'
/bin/ld: (.text+0x60): undefined reference to `__libc_csu_fini'
make[1]: *** [Makefile:2682: packages_smart] Error 2
make: *** [Makefile:2837: build-stamp.aarch64-linux] Error 2
fpmake.pp(60) Error: Error while linking
fpmake.pp(60) Fatal: There were 1 errors compiling module, stopping
Fatal: Compilation aborted

I believe that a lot of people will experience this since the 64 bit OS on RPi4
has been recently released as the *recommended* version on that popular
platform...


-- 
Bo Berglund
Developer in Sweden