| | 127 | == GHC's phases == |
| | 128 | |
| | 129 | In the GHC build system, we have 3 phases. Each phase is in two halves: some things are built while make is rebuilding makefiles (the "includes" half), and some things are built as they are the target we ask make to build (the "builds" half). |
| | 130 | |
| | 131 | * Phase 0 |
| | 132 | * Includes: `package-data.mk` files for things built by the bootstrapping compiler. |
| | 133 | * Builds: the dependency files for `hsc2hs` and `genprimopcode`. We need to do this now, as `hsc2hs` needs to be buildable in phase 1's includes (so that we can make the `hpc` library's `.hs` source files, which in turn is necessary for making its dependency files), and `genprimopcode` needs to be buildable in phase 1's includes (so that we can make the `primop-*.hs-incl` files, which are sources for the stage1 compiler library, and thus necessary for making its dependency files). |
| | 134 | * Phase 1 |
| | 135 | * Includes: dependency files for things built by the bootstrapping compiler. |
| | 136 | * Builds: `package-data.mk` files for everything else. Note that this requires configuring the packages, which means telling cabal which ghc to use, and thus the stage1 compiler gets built during this phase. |
| | 137 | * Phase "" |
| | 138 | * Includes: dependency files for everything else. |
| | 139 | * Builds: Everything else. |
