ShiftMediaProject/FFmpeg

Error LNK2019: Unresolvable external symbol _udiv128, referenced in function __gmpn_tdiv_QR

Closed this issue · 6 comments

xlf888 commented

Error LNK2019: Unresolvable external symbol _udiv128, referenced in function __gmpn_tdiv_QR
vs2017

Sibras commented

This seems to be a header difference issue between different versions of VS.

Reset your gmp repo so that it matches the current upstream and try it again

git fetch upstream
git reset --hard upstream/master
Suiyek commented

Hi, I got this error too.

I exec git fetch upstream by following your answer, but I got another error :

$ git fetch upstream
fatal: 'upstream' does not appear to be a git repository
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
Sibras commented

Try this instead:

git fetch origin
git reset --hard origin/master

Suiyek commented

Sorry , no resolved.

I pull the this project to the latest status. (top commit id is : ecd40c9)

I can build all of the libs in the folder 'Dependencies' successfully.
I can build libav* / libpostproc / libswresample / libswscale successfully too.

But , finally , when I build ffmpeg/ffplay/fprobe ; I got the error :

Unresolvable external symbol _udiv128, referenced in function __gmpn_tdiv_qr

(I tried rebuild all, got the same errors.)

Sibras commented

You need to perform the update commands on the "gmp" repo and ensure that gmp is rebuilt. The issues you are getting are in gmp not ffmpeg.

So make sure your gmp repo is at 7d6ea11ea, rebuild and see how that works.

Suiyek commented

It works ~
Thank you so much !