games-puzzle/atris: modernize autotools and do not use implicit

Signed-off-by: Samuel Bauer <samuel.bauer@yahoo.fr>

games-puzzle/atris/atris-1.0.7.ebuild

@@ -3,7 +3,7 @@
 
 EAPI=7
 
-inherit desktop
+inherit autotools desktop
 
 DESCRIPTION="Alizarin tetris"
 HOMEPAGE="https://www.wkiri.com/projects/atris/"
@@ -26,8 +26,14 @@ RDEPEND="${DEPEND}"
 PATCHES=(
 	"${FILESDIR}"/${P}-fno-common.patch
 	"${FILESDIR}"/${P}-path-and-fullscreen.patch
+	"${FILESDIR}"/${P}-no-implicit.patch
 )
 
+src_prepare() {
+	default
+	eautoreconf
+}
+
 src_install() {
 	dobin atris
 	insinto /usr/share/${PN}

games-puzzle/atris/files/atris-1.0.7-no-implicit.patch

@@ -0,0 +1,11 @@
+--- a/configure.in
++++ b/configure.in
+@@ -69,7 +69,7 @@
+             :,
+ 	    AC_MSG_ERROR([*** SDL version $SDL_VERSION not found! Get it from http://www.libsdl.org ])
+ )
+-CFLAGS="$CFLAGS -Wall -Wimplicit -Wsign-compare -Wpointer-arith $SDL_CFLAGS -DATRIS_LIBDIR=\\\"$GAME_INSTALLDIR\\\""
++CFLAGS="$CFLAGS -Wall -Wsign-compare -Wpointer-arith $SDL_CFLAGS -DATRIS_LIBDIR=\\\"$GAME_INSTALLDIR\\\""
+ LIBS="$LIBS $SDL_LIBS"
+ 
+ # Finally create all the generated files