[AC_REQUIRE([FP_PROG_GHC_PKG])
AC_CACHE_CHECK([whether ghc has readline package], [fp_cv_ghc_has_readline],
[if "${GhcPkgCmd-ghc-pkg}" --show-package readline >/dev/null 2>&1; then
[AC_REQUIRE([FP_PROG_GHC_PKG])
AC_CACHE_CHECK([whether ghc has readline package], [fp_cv_ghc_has_readline],
[if "${GhcPkgCmd-ghc-pkg}" --show-package readline >/dev/null 2>&1; then