fix(haskell)

let's get it using clang/ld.lld if possible, as well as enforcing `-fPIC` and `-pie`.

projects/haskell.org/package.yml

@@ -42,7 +42,7 @@ dependencies:
   sourceware.org/libffi: 3
   linux:
     github.com/numactl/numactl: ^2
-    gnu.org/gcc: '*'
+    llvm.org: '*'
 
 warnings:
   - vendored
@@ -68,12 +68,18 @@ build:
     - run: find . -type f -name \*.conf -print0 | xargs -0 sed -i -e 's|{{prefix}}|${pkgroot}/../../../../..|g' -e 's/\+brewing//g'
       working-directory: ${{prefix}}/ghc/{{version}}/lib/ghc-{{version}}/package.conf.d
       if: <9.4
+
+    - run: cat settings
+      working-directory: ${{prefix}}/ghc/{{version}}/lib/ghc-{{version}}/lib
   env:
     BOOTSTRAP_HASKELL_NONINTERACTIVE: 1
     BOOTSTRAP_HASKELL_NO_UPGRADE: 1
     BOOTSTRAP_HASKELL_MINIMAL: 1
     GHCUP_INSTALL_BASE_PREFIX: ${{prefix}}
     GHCUP_SKIP_UPDATE_CHECK: 1
+    linux:
+      CC: clang
+      LD: ld.lld
 
 test:
   script: