ghcHEAD: fix mingw build

pkgs/development/compilers/ghc/head.nix

@@ -38,9 +38,6 @@
   # platform). Static libs are always built.
   enableShared ? !stdenv.targetPlatform.isWindows && !stdenv.targetPlatform.useiOSPrebuilt
 
-, # Whether to build terminfo.
-  enableTerminfo ? !stdenv.targetPlatform.isWindows
-
 , version ? "9.3.20211111"
 , # What flavour to build. An empty string indicates no
   # specific flavour and falls back to ghc default values.
@@ -116,11 +113,17 @@ let
     GhcRtsHcOpts += -fPIC
   '' + lib.optionalString targetPlatform.useAndroidPrebuilt ''
     EXTRA_CC_OPTS += -std=gnu99
+  ''
+  # While split sections are now enabled by default in ghc 8.8 for windows,
+  # they seem to lead to `too many sections` errors when building base for
+  # profiling.
+  + lib.optionalString targetPlatform.isWindows ''
+    SplitSections = NO
   '';
 
   # Splicer will pull out correct variations
-  libDeps = platform: lib.optional enableTerminfo ncurses
-    ++ [libffi]
+  libDeps = platform:
+       [libffi ncurses]
     ++ lib.optional (!enableNativeBignum) gmp
     ++ lib.optional (platform.libc != "glibc" && !targetPlatform.isWindows) libiconv
     ++ lib.optional enableDwarf elfutils;