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 at 22%. I edited CMakeLists to suppress this error and passing in flags when invoking cmake earlier, but fixes were unsuccessful.
Do you have any suggestions to fix the error efficiently?
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Could you try building OpenFHE using the dev branch? We fixed a compilation problem for g++18 there. Please let me know if this helps.
I had the same error was able to complete the installation by
- Reinstalling the most current copy of MSYS2
- Ran this toolchain library " pacman -S --needed base-devel mingw-w64-ucrt-x86_64-toolchain " from Get Started with C++ and MinGW-w64 in Visual Studio Code.
- I didn’t need to run the first command on the OpenFHE Windows installation page. I just ran the remaining commands below
pacman -S mingw-w64-x86_64-gcc (This installed gcc version 13.2.0)
pacman -S mingw-w64-x86_64-cmake
pacman -S make
pacman -S git
git clone GitHub - openfheorg/openfhe-development: This is the development repository for the OpenFHE library. The current (stable) version is v1.2.0 (released on June 25, 2024).
cd openfhe-development
mkdir build
cd build
cmake …
pacman -S autoconf
make
make install
export PATH=$PATH:lib
make testall
bin/examples/pke/simple-integers
Actually, I have fixed all the installation errors by using windows subsystem for Linux. It finished within 30 minutes 
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