Can't compile using Cygwin/MinGW/windows 8

[spalato]

Hi guys,

I'm trying to build Julia on Cygwin using MinGW on windows 8 x64.

I've followed the windows build guide, installed MinGW as recommended, got it to work (found solutions there, thanks #6295). Now the build process fails when trying to build double-conversion. It is missing the libgrisu.so library.

Here's the message, from a fresh julia clone:
https://gist.github.com/spalato/a12a7acbd0ae637c9bc5

Thanks

Edit: now with a working link.

[vtjnash]

looks like it thought it was building for linux, rather than windows. can you clarify your build process? to build on Cygwin, you need to configure your Make.user for a MinGW cross-compile -- native Cygwin compiles are not supported.

[tkelman]

If you're using Cygwin as your shell, you should use Cygwin's installed versions of MinGW compilers and set XC_HOST = x86_64-w64-mingw32 in Make.user to set up a Cygwin-to-MinGW cross compile.

If you're using the MinGW-builds compilers, don't try to use Cygwin as your shell. You need to use MSYS(2) for the path translation, since native MinGW compilers don't understand posixy paths.

[spalato]

I downloaded MinGW-builds as recommended under README.windows. I prepended MinGW directory to PATH verified the correct gcc was found using which gcc and gcc -v. I than ran the default make.inc file.

Cygwin is giving me a hard time with the mingw64_x86_64 install (updates, incomplete mirrors...). I'll use my own Make.user using your advice and keep you updated.

Thanks.

[spalato]

I installed cygwin's mingw_x86_64 compiler suite, then uncommented the XC_HOST = x86_64-w64-mingw32 line in Make.inc (I should have used Make.user, I know). Julia compiled fine, and works now.

Thanks for your help