[SDL] [fix & workaround] Re: SDL 1.2.12 src fails @ '(g)libtoolize' on both FreeBSD & OSX

[snowcrash+sdl]

1st, the cmd name is wrong

 -   AC_CONFIG_AUX_DIRS(blah)
 +   AC_CONFIG_AUX_DIR(blah)

and, it seems, AC_CONFIG_AUX_DIR doesn't like variables as args


 -    AC_CONFIG_AUX_DIRS($srcdir/build-scripts)
 +    AC_CONFIG_AUX_DIRS(./build-scripts)

with these, configuing & building in ToT, '(g)libtoolize' errors go
away, and the subsequent build completes w/o error.

hth