On 9/28/20 12:24 AM, Travis Siegel via fpc-devel wrote:
How does one get a 64-bit version on windows. When I try to run a
64-bit version on windows, I encounter an error, though I don't
remember what that error is, since I've not tried it for a couple
weeks. I didn't even know there was a 64-bit windows version, because
as mentioned below, linking to the 64-bit version on the website links
to a 32-bit version. Admittedly, I'm no fan of windows, and honestly,
I hate that I'm forced to use it for my everyday work, I'd much rather
use linux/macos, but at the moment, that's not an option, though I was
windows free for over 10 years at one point, that sadly has changed
over the past 5 years. <sigh>
But, in any case, if there's a way to get 64-bit versions on windows,
I'd like to know how.
If you want to target Win64, using official FPC releases, you should
download two packages:
fpc-3.2.0.i386-win32.exe
fpc-3.2.0.i386-win32.cross.x86_64-win64.exe
Install the first one, then the second one (it's an add-on package that
adds win64 target support to the 32-bit compiler). After that you can
compile to win32 via:
fpc -Pi386 hello.pas
and to win64 via:
fpc -Px86_64 hello.pas
The two install packages will be combined into one starting with FPC
3.2.2, so it will be a single download.
Lazarus provides a native win64-hosted win64-targeting FPC, but I don't
use it, because of the 80-bit floating point issues. That's why I don't
recommend it. I prefer to install these two:
lazarus-2.0.10-fpc-3.2.0-win32.exe
lazarus-2.0.10-fpc-3.2.0-cross-x86_64-win64-win32.exe
This allows me to target both win32 and win64. I don't know if there's
any downside to using these instead of the win64 version of Lazarus.
Disclaimer: I don't write GUI apps, so I don't use the LCL.
Best regards,
Nikolay
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