Re: [Mingw-users] Please help find these DLLs

[<sis...@op...>]

From: Xi Shen
Sent: Tuesday, March 17, 2015 10:38 AM
To: MinGW Users List
Subject: Re: [Mingw-users] Please help find these DLLs

> I need 64bit gcc to work on 64bit Windows system.
>
> I think I found the problem. I get mingw from the installer from 
> http://www.mingw.org/, and it seems the installer can only install 
> mingw32-* packages which are all 32bit.
>
> I found a http://mingw-w64.sourceforge.net/, but it only provides 64bit 
> gcc...I looked through its package manager, but I could not find any 
> package related to fortran or math.

That's separate from mingw.org (different project and different mailing 
list).
They provide both 32-bit and 64-bit gcc compilers.

For 64-bit:
http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win64/

For 32-bit:
http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win32/

Then just work your way through the links (options) until you arrive at the 
version you want to download.

If you need libgcc_s_seh-1.dll you'll need an "seh" build - maybe the latest 
64-bit one at:
http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/4.9.2/threads-posix/seh/

Normally I use an "sjlj" build - eg the latest 64-bit one at:
http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/4.9.2/threads-posix/sjlj/
but there's no libgcc_s_seh-1.dll with that compiler.

Neither of these compilers provide libgfortran-1.3.dll, but they both 
provide libgfortran-3.dll and libquadmath-0.dll.
They are "posix-threads" builds - you can select "win32-threads" builds if 
you want.

Having downloaded the package you want, unpack it to the location of your 
choice and set your path accordingly.
Or try the mingw-w64-install.exe for which there's a link on the above 
pages. (I haven't used it.)

Further questions about what's provided by the mingw-w64 project would best 
be directed to *their* mailing list.

Cheers,
Rob