fix a warning

laantas-script/laantas-script.cabal

@@ -8,6 +8,9 @@ author: Rhiannon Morris <rhi@rhiannon.website>
 maintainer: Rhiannon Morris <rhi@rhiannon.website>
 
 common base
+  ghc-options:
+    -Wall -Wno-missing-signatures -Wno-missing-pattern-synonym-signatures
+    -Wno-name-shadowing
   default-language: Haskell2010
   default-extensions:
     BlockArguments,
@@ -30,7 +33,10 @@ common base
     optparse-applicative ^>= 0.16.0.0,
     text ^>= 2.1,
     megaparsec ^>= 9.6.1
-  ghc-options: -Wall
+
+common exe
+  ghc-options:
+    -threaded -rtsopts -with-rtsopts=-N
 
 library
   import: base
@@ -39,7 +45,7 @@ library
   other-modules: Svg, Glyphs, GlyphsBase, Split
 
 executable laantas-script
-  import: base
+  import: base, exe
   hs-source-dirs: main
   main-is: Main.hs
   build-depends: laantas-script

langfilter/langfilter.cabal

@@ -11,7 +11,6 @@ common base
   ghc-options:
     -Wall -Wno-missing-signatures -Wno-missing-pattern-synonym-signatures
     -Wno-name-shadowing
-    -threaded -rtsopts -with-rtsopts=-N
   default-language: Haskell2010
   default-extensions:
     BlockArguments,
@@ -36,6 +35,10 @@ common base
     pretty-show ^>= 1.10,
     laantas-script
 
+common exe
+  ghc-options:
+    -threaded -rtsopts -with-rtsopts=-N
+
 library
   import: base
   hs-source-dirs: lib
@@ -48,7 +51,7 @@ library
     LangFilter
 
 executable langfilter
-  import: base
+  import: base, exe
   hs-source-dirs: main
   main-is: Main.hs
   build-depends: langfilter