Remove the --enable-debug option for configure, it didn't do anything.

# the += operator on it in src/or/Makefile.am

CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"

AC_ARG_ENABLE(debug,

 AS_HELP_STRING(--enable-debug, compile with debugging info),

[if test x$enableval = xyes; then

    CFLAGS="$CFLAGS -g"

fi])

#XXXX ideally, we should make this into a no-op, and detect whether we're

#compiling for the iphone by using $target.

AC_ARG_ENABLE(iphone,