[Haskell-cafe] Desktop GUI in Haskell

[Henning Thielemann]

On Sat, 27 Feb 2021, A. Mc. wrote:

> I'm attempting to use GTK+3 to create a Desktop, but I am having a problem installing all of the dependencies.  I keep getting the
> following error: 
> GUI cabal: version >=0.9.0 of pkg-config is required

I understand this error message as: You need to install pkg-config first. 
pkg-config is the tool that manages path and versions of installed C 
libraries and Cabal uses it to query existence and compiler flags of 
installed C libraries.

> I am using Cygwin on a Windows 10 operating system. What is needed to 
> fix this? Is this the best way to do a desktop GUI in Haskell?

On Windows I used MSYS2 and this helped a lot to install components like 
pkg-config and other C libraries plus their interfaces.