-/* HAS_BACKTRACE:
- * This symbol, if defined, indicates that the backtrace() routine is
- * available to get a stack trace. The <execinfo.h> header must be
- * included to use this routine.
- */
-#$d_backtrace HAS_BACKTRACE /**/
-
-/* HAS_DLADDR:
- * This symbol, if defined, indicates that the dladdr() routine is
- * available to get a stack trace. The <execinfo.h> header must be
- * included to use this routine.
- */
-#$d_dladdr HAS_DLADDR /**/
-
-/* I_EXECINFO:
- * This symbol, if defined, indicates to the C program that it should
- * include <execinfo.h> for backtrace() support.
- */
-#$i_execinfo I_EXECINFO /**/
-
-/* I_TERMIO:
- * This symbol, if defined, indicates that the program should include
- * <termio.h> rather than <sgtty.h>. There are also differences in
- * the ioctl() calls that depend on the value of this symbol.
- */
-/* I_TERMIOS:
- * This symbol, if defined, indicates that the program should include
- * the POSIX termios.h rather than sgtty.h or termio.h.
- * There are also differences in the ioctl() calls that depend on the
- * value of this symbol.
- */
-/* I_SGTTY:
- * This symbol, if defined, indicates that the program should include
- * <sgtty.h> rather than <termio.h>. There are also differences in
- * the ioctl() calls that depend on the value of this symbol.
- */
-#$i_termio I_TERMIO /**/
-#$i_termios I_TERMIOS /**/
-#$i_sgtty I_SGTTY /**/
-