File autoconf.patch of Package Frodo

Index: configure.ac
===================================================================
--- orig/configure.ac
+++ configure.ac
@@ -10,7 +10,7 @@ AX_CXX_COMPILE_STDCXX(20, noext, mandatory)
 PKG_PROG_PKG_CONFIG
 
 dnl Checks for libraries.
-AM_PATH_SDL2(2.30.0, AC_DEFINE(HAVE_SDL, 1, [SDL support is enabled]), AC_MSG_ERROR([*** Required SDL version not found]))
+AM_PATH_SDL2(2.28.0, AC_DEFINE(HAVE_SDL, 1, [SDL support is enabled]), AC_MSG_ERROR([*** Required SDL version not found]))
 CPPFLAGS="$CPPFLAGS $SDL_CFLAGS"
 LIBS="$LIBS $SDL_LIBS"