# \#os:cygwin

**URL:** https://discourse.cmake.org/tag/os-cygwin/18.md

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## [cygwin cmake failing with windows-style path names not found](https://discourse.cmake.org/t/cygwin-cmake-failing-with-windows-style-path-names-not-found/11005)

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**Author:** [@phrodod](https://discourse.cmake.org/u/phrodod)\
**Replies:** 4\
**Last updated:** [March 13, 2025, 9:54pm UTC](https://discourse.cmake.org/t/cygwin-cmake-failing-with-windows-style-path-names-not-found/11005 "2025-03-13T21:54:41Z")

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I’ve got a multi-language project building both C++ and Java executables. I’ve managed to get this working on a really old Linux (CentOS 7.9) system, and now am trying to build on Windows using Cygwin (this is a code tha…

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## [Call CMake Cygwin with windows style path (C:\\)](https://discourse.cmake.org/t/call-cmake-cygwin-with-windows-style-path-c/11599)

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**Author:** [@kuch3n](https://discourse.cmake.org/u/kuch3n)\
**Replies:** 3\
**Last updated:** [September 6, 2024, 2:07pm UTC](https://discourse.cmake.org/t/call-cmake-cygwin-with-windows-style-path-c/11599 "2024-09-06T14:07:17Z")

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If cygwins cmake is called with windows style paths and the build directory is missing, cmake will create two build directories from -B "C:\\\\dir1\\\\dir2\\\\project\\\\build": C probably a relative path from the root of th…