Request: Win64 gcc compile target

[blacksqr]

I'd like to compile tcllibc.dll for 64-bit Windows systems, but I can't because apparently critcl has no Win64 compile target for mingw gcc.

I can cross-compile a Win32 dll from Linux, or compile a Win32 dll from a 64-bit Win computer with mingw installed. But there's no Win64 option. I have not been able to figure out how to define a new target.

I tried the 64-bit tcllibc.dll from the Magigsplat distro, but it seems that a dll compiled with Visual Studio is incompatible with a tclsh executable cross-compiled with gcc.

[andreas-kupries]

The target definitions are all found in the file lib/critcl/Config.

Everything about Windows starts at https://github.com/andreas-kupries/critcl/blob/master/lib/critcl/Config#L290

The initial stuff is code to handle some MSVC differences in options and libraries.
That is followed by the actual target definitions (MSVC) at https://github.com/andreas-kupries/critcl/blob/master/lib/critcl/Config#L350

The mingw stuff begins at https://github.com/andreas-kupries/critcl/blob/master/lib/critcl/Config#L386

For a win64 target we need a new block, lets name it mingw64. I suspect that it should be mostly a copy of mingw32 with only changes to the target name, and the compile and link definitions to ensure that the compiler/linker are in 64bit mode.

I hope that helps.

[andreas-kupries]

Oh, right. The common settings are the top, at line https://github.com/andreas-kupries/critcl/blob/master/lib/critcl/Config#L55
just after the documentation of the known keys to use in a target definition.

[andreas-kupries]

And the copy clause should simplify creating the win64 definition as a variant of win32. See docs at top, and the win64 MSVC target as example (it is a variant of win32 MSVC).

[andreas-kupries]

@blacksqr Did this help you ?

[blacksqr]

Thanks for the information... I haven't had time to revisit the issue, I poached a pre-compiled 64-bit tcllibc library file from the BAWT distribution.

If I have success in defining a new target, I'll post feedback/details.

[andreas-kupries]

Thank you. Note that I am gearing up towards making a 3.1.18 release, and I hope to get such a Win64 target in.