Discrepancy in syntax in lookupValue and system.config

[chitrak7]

The function lookupValue in Hadrian.Oracles.TextFile expects file in this syntax: -- | Lookup a value in a text file, tracking the result. Each line of the file -- is expected to have @key = value@ format.

This function is called with file system.config as an argument, but the lines in this files are of the format: key = @value@ e.g. cross-compiling = @CrossCompiling@ Thus creating a discrepancy and possible errors

[snowleopard]

@chitrak7 I think this is just a misunderstanding:

• The comment uses Haddock markup syntax where @text@ renders text using a fixed-width font.
• The settings in system.config.in use the Autoconf syntax @value@ as a placeholder -- it is replaced by the configure script with concrete values -- see system.config.

I can see how it can be a bit confusing. I suggest you build Haddock documentation by stack haddock and then you'll be able to read the documentation in HTML, where you'll see no @.