After reading this blog post by Jason Dagit with the same title as the one you are reading now, I opened a new terminal session and cloned the GHC repo to my computer. Then, I successfully built GHC. Easy and faster than I thought. Online docs talk about hours of compiling process, when for me it only took some minutes (about 20-30 minutes). But, yeah, I provided the -j3 parameter to compile it in parallel. It works like a charm.
After having GHC built from the source for my first time, I decided to make a modified version of GHC. This version is aimed to really professional Haskell hackers who don't need any help from any source to know which commands are available in GHCi.
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This is just my first step to get involved in GHC coding. :)
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