ghc-bootstrap-helpers.armv7hl: W: position-independent-executable-suggested /usr/bin/alex ghc-bootstrap-helpers.armv7hl: W: position-independent-executable-suggested /usr/bin/happy This executable should be position independent (all binaries should). Check that it is built with -fPIE/-fpie in compiler flags and -pie in linker flags. 2 packages and 0 specfiles checked; 0 errors, 2 warnings.