[RESOLVED] Re: LO build failure in Windows 10 (No C-89 compiler found in libassuan part)

[Julien Nabet]

After 1bb0e177124d5d6661b72df6c7d848fb23639652

author    Thorsten Behrens <thorsten.behrens at allotropia.de>    
2021-12-28 17:22:29 +0100
committer    Thorsten Behrens <thorsten.behrens at allotropia.de>    
2021-12-28 21:14:58 +0100
commit    1bb0e177124d5d6661b72df6c7d848fb23639652 (patch)
tree    257fbb13364b2f5f565ed5d1ad7e859f8e3c096e
parent    cfbcbb605dbaaea45dc9ac5ea792d72cb2f2c1bb (diff)
Fix autoconf>=2.70 gcc-wrapper breakage
Re-generated configure file gets confused & claims not finding C89-
compatible compiler for gcc-wrapper-building libassuan with msvc
underneath.

Work-around the problem by telling toolchain right off that this
_is_ a std c compliant compiler.

I confirm that it works now with last autoconf version retrieved on 
Cygwin package manager.

Thank you Thorsten!

Julien

On 27/12/2021 22:07, Julien Nabet wrote:
> On 27/12/2021 21:58, Hossein Nourikhah wrote:
>> Hello,
>>
>> On 27.12.2021 18:46, Jan-Marek Glogowski wrote:
>>> Am 27.12.21 um 18:30 schrieb Julien Nabet:
>>>> On Win10, I updated my local repo after some weeks and it fails with:
>>>
>>> And you updated Cygwin...
>>>
>>>> checking how to run the C preprocessor... 
>>>> C:/cygwin/home/serva/lode/dev/core/workdir/LinkTarget/Executable/gcc-wrapper.exe 
>>>> -E
>>>> configure: error: No C-89 compiler found
>>>> make[1]: *** 
>>>> [C:/cygwin/home/serva/lode/dev/core/external/libassuan/ExternalProject_libassuan.mk:26: 
>>>> C:/cygwin/home/serva/lode/dev/core/workdir/ExternalProject/libassuan/build] 
>>>> Error 1
>>>> make: *** [Makefile:291: build] Error 2
>>>
>>> Cygwin updated the default to autoconf 2.70+. Workaround: uninstall
>>> the autoconf2.7 package and install the autoconf2.5 (2.69) package and
>>> downgrade the meta-package. AFAIK --disable-gpgmepp also works, but I
>>> didn't test.
>>
>> I have tested building LibreOffice using --disable-gpgmepp on Windows 
>> 10, Cygwin 3.3.3 and autoconf 2.71 using VS 2019 and it worked fine. 
>> The two ways to fix this problem are now written down in the wiki:
>>
>> https://wiki.documentfoundation.org/Development/BuildingOnWindows#Install_Cygwin_Requirements 
>>
>>
> Thank you Jan-Marek, I confirm downgrading autoconf worked!
>
> Thank you Hossein too for having tested the other workaround and 
> updated the documentation.
>
> Now I suppose the real fix will come from libassuan.
>
> Julien
>