games-puzzle/freesweep: fix configure w/ clang 16

Closes: https://bugs.gentoo.org/899002
Signed-off-by: Sam James <sam@gentoo.org>

games-puzzle/freesweep/freesweep-1.0.2-r1.ebuild

@@ -1,9 +1,9 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-inherit toolchain-funcs
+inherit autotools toolchain-funcs
 
 DESCRIPTION="Console Minesweeper"
 HOMEPAGE="https://github.com/rwestlund/freesweep"
@@ -17,6 +17,14 @@ RDEPEND="sys-libs/ncurses:="
 DEPEND="${RDEPEND}"
 BDEPEND="virtual/pkgconfig"
 
+src_prepare() {
+	default
+
+	sed -i -e "s:configure.in:configure.ac:" Makefile.in || die
+	# Clang 16, bug #899002
+	eautoreconf
+}
+
 src_compile() {
 	emake LIBS="$($(tc-getPKG_CONFIG) --libs ncurses || die)"
 }