Control: tags -1 + patch this lets the configure step succeed, but the build fails later.
diff -Nru ghc-8.8.4/debian/changelog ghc-8.8.4/debian/changelog --- ghc-8.8.4/debian/changelog 2020-12-23 22:15:42.000000000 +0000 +++ ghc-8.8.4/debian/changelog 2021-10-01 06:48:44.000000000 +0000 @@ -1,3 +1,9 @@ +ghc (8.8.4-2.1) UNRELEASED; urgency=medium + + * Fix ftbfs with autoconf 2.71. Closes: #995036. + + -- Matthias Klose <d...@debian.org> Fri, 01 Oct 2021 08:48:44 +0200 + ghc (8.8.4-2) unstable; urgency=medium [ Ilias Tsitsimpis ] diff -Nru ghc-8.8.4/debian/patches/autoconf-2.71.diff ghc-8.8.4/debian/patches/autoconf-2.71.diff --- ghc-8.8.4/debian/patches/autoconf-2.71.diff 1970-01-01 00:00:00.000000000 +0000 +++ ghc-8.8.4/debian/patches/autoconf-2.71.diff 2021-10-01 06:43:58.000000000 +0000 @@ -0,0 +1,11 @@ +--- a/aclocal.m4 ++++ b/aclocal.m4 +@@ -613,7 +613,7 @@ AC_DEFUN([FP_SET_CFLAGS_C99], + CPPFLAGS="$$3" + unset ac_cv_prog_cc_c99 + dnl perform detection +- _AC_PROG_CC_C99 ++ AC_PROG_CC_C99 + fp_cc_c99="$ac_cv_prog_cc_c99" + case "x$ac_cv_prog_cc_c99" in + x) ;; # noop diff -Nru ghc-8.8.4/debian/patches/series ghc-8.8.4/debian/patches/series --- ghc-8.8.4/debian/patches/series 2020-12-23 22:15:42.000000000 +0000 +++ ghc-8.8.4/debian/patches/series 2021-10-01 06:42:06.000000000 +0000 @@ -14,3 +14,4 @@ 11f8eef5a9625c77f78a829406c446b615ed6168.patch haddock-remove-googleapis-fonts fix-big-endian-ffi +autoconf-2.71.diff
