How can I build pdfium on arm64 platform?(Debian glibc 2.28)

[MyChuan]

step 1, I'm run the sh by command "./build.sh -b chromium/5670 linux arm64".
step 2, the error is "E: 软件包 libc6-i386 没有可安装候选
E: 无法定位软件包 gcc-9-multilib
E: 无法定位软件包 g++-9-aarch64-linux-gnu
E: 无法按照正则表达式 g++-9-aarch64-linux-gnu 找到任何软件包
E: 软件包 gcc-9-aarch64-linux-gnu:i386 没有可安装候选",
then i comment it out.
step 3, the error is "fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree." when it reaches gclient sync -r origin/chromium/5670 --no-history --shallow, but i can get the codes from gclient, then i copy it in this place.
step 4, the error is "gn gen /root/zbc/projects/pdfium-binaries/pdfium-binaries/pdfium/out
Traceback (most recent call last):
File "/root/zbc/projects/pdfium-binaries/pdfium-binaries/depot_tools/gn.py", line 14, in
import gclient_paths
File "/root/zbc/projects/pdfium-binaries/pdfium-binaries/depot_tools/gclient_paths.py", line 24, in
def FindGclientRoot(from_dir, filename='.gclient'):
File "/usr/lib/python3.7/functools.py", line 477, in lru_cache
raise TypeError('Expected maxsize to be an integer or None')
TypeError: Expected maxsize to be an integer or None
"
How can i resolve the problems? Looking forward to your help.

[Benoît Blanchon]

Hi @MyChuan,

I had the same error today with the Windows build.
I assumed it was because the Python version was too old, so I updated the runner.
Guess what? It worked!

Try to upgrade to Python >= 3.9

Best regards,
Benoit

[MyChuan]

Hi @MyChuan,

I had the same error today with the Windows build. I assumed it was because the Python version was too old, so I updated the runner. Guess what? It worked!

Try to upgrade to Python >= 3.9

Best regards, Benoit

OK，let me try it, thank you!

[MyChuan]

Hi @MyChuan,

I had the same error today with the Windows build. I assumed it was because the Python version was too old, so I updated the runner. Guess what? It worked!

Try to upgrade to Python >= 3.9

Best regards, Benoit

I get another error，“/root/zbc/projects/pdfium-binaries/pdfium-binaries/.gclient_entries missing, .gclient file in parent directory /root/zbc/projects/pdfium-binaries/pdfium-binaries might not be the file you want to use.
Traceback (most recent call last):
File "/root/zbc/projects/pdfium-binaries/pdfium-binaries/depot_tools/gn.py", line 93, in
sys.exit(main(sys.argv))
File "/root/zbc/projects/pdfium-binaries/pdfium-binaries/depot_tools/gn.py", line 88, in main
return subprocess.call([gn_path] + args[1:])
File "/usr/local/python39/lib/python3.9/subprocess.py", line 349, in call
with Popen(*popenargs, **kwargs) as p:
File "/usr/local/python39/lib/python3.9/subprocess.py", line 951, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File "/usr/local/python39/lib/python3.9/subprocess.py", line 1837, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
”.
I can confirm where this file exists, and contents is ""

,what can i do next?

[Benoît Blanchon]

Hi @MyChuan,

I don't know.
The build works on Ubuntu, and it's all that matters to me.
As I said in #90:

The goal of the project is to provide PDFium binaries, nothing more.
The build scripts in this repository are just a side-product of this process.
Those scripts only need to run on GitHub-hosted runners, and I have no intention of making them portable.

To build PDFium on unsupported Linux distributions, please follow the official instructions.

Thank you for your understanding.

Best regards,
Benoit

[MyChuan]

Hi @MyChuan,

I don't know. The build works on Ubuntu, and it's all that matters to me. As I said in #90:

The goal of the project is to provide PDFium binaries, nothing more.
The build scripts in this repository are just a side-product of this process.
Those scripts only need to run on GitHub-hosted runners, and I have no intention of making them portable.
To build PDFium on unsupported Linux distributions, please follow the official instructions.

Thank you for your understanding.

Best regards, Benoit

I get, thank you all the same！