Build GHC with cabal-install and a Makefile

.envrc

@@ -0,0 +1,7 @@
+# Check if nix-direnv is already loaded; if not, source it
+if ! has nix_direnv_reload; then
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.2.0/direnvrc" "sha256-+IuxtJIDzJIlHDAxyzr7M2S3FD +zSd/BNfZe+ntXje0="
+fi
+
+# Use the specified flake to enter the Nix development environment
+use flake github:input-output-hk/devx#ghc98-minimal-ghc

.github/workflows/ci.yml

@@ -9,48 +9,51 @@ on:
   push:
     branches: [master]
 
+  workflow_dispatch:
+
 jobs:
   cabal:
-    name: ${{ matrix.os }} / ghc ${{ matrix.ghc }}
-    runs-on: ${{ matrix.os }}
+    name: ${{ matrix.plat }} / ghc ${{ matrix.ghc }}
+    runs-on: "${{ fromJSON('{\"x86_64-linux\": \"ubuntu-24.04\", \"aarch64-linux\": \"ubuntu-24.04-arm\", \"x86_64-darwin\": \"macos-latest\", \"aarch64-darwin\": \"macos-latest\"}')[matrix.plat] }}"
+
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest]
-        ghc: ['9.8.4'] # bootstrapping compiler
+        plat: [x86_64-linux, aarch64-linux, x86_64-darwin, aarch64-darwin]
+        ghc: ['98'] # bootstrapping compiler
 
     steps:
     - uses: actions/checkout@v4
       with:
         submodules: "recursive"
 
-    - uses: haskell-actions/setup@v2
-      id: setup
-      name: Setup Haskell tools
+    - uses: input-output-hk/actions/devx@latest
       with:
-        ghc-version: ${{ matrix.ghc }}
-        cabal-version: "latest"
-        cabal-update: true
+        platform: ${{ matrix.plat }}
+        compiler-nix-name: 'ghc98'
+        minimal: true
+        ghc: true
 
-    - name: Configure the build
-      run: ./boot
+    - name: Update hackage
+      shell: devx {0}
+      run: cabal update
 
-    - name: Build patched cabal
-      run: make cabal
+    - name: Configure the build
+      shell: devx {0}
+      run: ./configure
 
     - name: Build the bindist
-      env:
-        CC: gcc
-        CXX: g++
+      shell: devx {0}
       run: make
 
     - name: Upload artifacts
       uses: actions/upload-artifact@v4
       with:
-        name: bindist
+        name: ${{ matrix.plat }}-bindist
         path: _build/bindist
 
     - name: Run the testsuite
+      shell: devx {0}
       run: make test
 
     - name: Upload test results

.gitmodules

@@ -100,6 +100,10 @@
 	path = utils/hsc2hs
 	url = https://gitlab.haskell.org/ghc/hsc2hs.git
 	ignore = untracked
+[submodule "libffi-tarballs"]
+	path = libffi-tarballs
+	url = https://gitlab.haskell.org/ghc/libffi-tarballs.git
+	ignore = untracked
 [submodule "gmp-tarballs"]
 	path = libraries/ghc-internal/gmp/gmp-tarballs
 	url = https://gitlab.haskell.org/ghc/gmp-tarballs.git