--- ghc-9.12.1/libraries/Cabal/Cabal/src/Distribution/Simple/InstallDirs.hs	2024-12-16 01:00:10.000000000 +0530
+++ ghc-9.12.1.mod/libraries/Cabal/Cabal/src/Distribution/Simple/InstallDirs.hs	2025-01-04 20:05:06.846734461 +0530
@@ -205,7 +205,7 @@
           windowsProgramFilesDir <- getWindowsProgramFilesDir
           return (windowsProgramFilesDir </> "Haskell")
         Haiku -> return "/boot/system/non-packaged"
-        _ -> return "/usr/local"
+        _ -> return "@TERMUX_PREFIX@"
   installLibDir <-
     case buildOS of
       Windows -> return "$prefix"