bug#49990: [core-updates-frozen] Ant-bootstrap broken by classpath-bootstrap

[Ludovic Courtès]

Hi there!

I pushed a variant of the patch proposed earlier, adding a similar
workaround to ‘Java_java_io_VMFile_exists’ and
‘Java_java_io_VMFile_isDirectory’:

  
https://git.savannah.gnu.org/cgit/guix.git/commit/?h=core-updates-frozen&id=7f50543d55b20cd528b28d7e15f1bb81001a8da9

With this, I can build ‘ant-bootstrap’ just fine.  \o/

Next up: icedtea 1.13.13 chokes on obscure C++ issues:

--8<---------------cut here---------------start------------->8---
In file included from 
/tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/asm/assembler.hpp:29,
                 from 
/tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/precompiled/precompiled.hpp:29:
/tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/code/relocInfo.hpp:374:27:
 error: friend declaration of ‘relocInfo prefix_relocInfo(int)’ specifies 
default arguments and isn’t a definition [-fpermissive]
  374 |   inline friend relocInfo prefix_relocInfo(int datalen = 0);
      |                           ^~~~~~~~~~~~~~~~
In file included from 
/tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/asm/assembler.hpp:29,
                 from 
/tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/precompiled/precompiled.hpp:29:
/tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/code/relocInfo.hpp:472:18:
 error: friend declaration of ‘relocInfo prefix_relocInfo(int)’ specifies 
default arguments and isn’t the only declaration [-fpermissive]
  472 | inline relocInfo prefix_relocInfo(int datalen) {
      |                  ^~~~~~~~~~~~~~~~
--8<---------------cut here---------------end--------------->8---

Anyway, we’re making progress!

Ludo’.