work around ldd crash on arm64 autobuilder

This does mean it has to run ldd once per executable, which is actually
quite a number of times, so will be a bit slower.

Sponsored-by: Luke Shumaker on Patreon

Build/LinuxMkLibs.hs

@@ -31,7 +31,7 @@ mklibs :: FilePath -> a -> IO Bool
 mklibs top _installedbins = do
 	fs <- dirContentsRecursive top
 	exes <- filterM checkExe fs
-	libs <- parseLdd <$> readProcess "ldd" exes
+	libs <- runLdd exes
 	
 	glibclibs <- glibcLibs
 	let libs' = nub $ libs ++ glibclibs