# Windows build error penfhe

**URL:** <https://openfhe.discourse.group/t/windows-build-error-penfhe/1469>\
**Category:** Library Questions\
**Created:** [August 2, 2024, 8:37pm UTC](https://openfhe.discourse.group/t/windows-build-error-penfhe/1469 "2024-08-02T20:37:00Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![audobong](https://avatars.discourse-cdn.com/v4/letter/a/c0e974/32.png) [@audobong](https://openfhe.discourse.group/u/audobong)\
**Post date:** [September 6, 2024, 9:02am UTC](https://openfhe.discourse.group/t/windows-build-error-penfhe/1469/5 "2024-09-06T09:02:38Z")

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See how this was solved here

> [@OpenFHE build error at 22%](https://openfhe.discourse.group/t/openfhe-build-error-at-22/1504):
>
> Hello! I’m looking for help regarding a build error. I repeatedly ran into this error when building OpenFHE on windows system using MinGW64. I followed each step of the documentation for installation. Starting when running cmake, there are a few problems from Performing Test HAVE\_CXX\_FLAG\_WSHORTEN\_64\_TO\_32, HAVE\_CXX\_FLAG\_WD654, HAVE\_CXX\_FLAG\_WITHREAD\_SAFETY, HAVE\_GNU\_POSIX\_REGEX, HAVE\_POSIX\_REGEX these failed Assuming they’re not critical I continued; After invoking make, the build stopped a…

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