Subject: Re: bug#45303: 28.0.50; [feature/native-comp] comp.c compilation error on Windows 10

From: Andrea Corallo <[email-masked]>
Date: Fri, 18 Dec 2020 13:28:20 +0000

Andrea Corallo via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <[email-masked]> writes:

> "Liāu, Kiong-Gē 廖宮毅" <[email-masked]> writes:
>
>> commit 87f6e93799  lead to successful compilation of comp.c, but lead
>> to linker errors while generating temacs.exe:
>>
>>
>>  CCLD     temacs.exe
>> C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
>> comp.o: in function `md5_gz_stream':
>> C:\msys64\home\VWinUser0\Downloads\emacs\native-comp\build\src/../../src/src/comp.c:713:
>> undefined reference to `inflateInit2_'
>> C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
>> C:\msys64\home\VWinUser0\Downloads\emacs\native-comp\build\src/../../src/src/comp.c:730:
>> undefined reference to `inflate'
>
> That's curious, looks you've not zlib but from the config.log you do...

I really would like to understand what's going on here.

We check in configure for zlib presence, actually this is also require
by --with-nativecomp but somehow the linker fails to find it.

Is zlib installed in your system?

If yes could you post the full output of 'make V=1'?

Thanks

  Andrea