+@c Cause even numbered pages to be printed on the left hand side of
+@c the page and odd numbered pages to be printed on the right hand
+@c side of the page. Using this, you can print on both sides of a
+@c sheet of paper and have the text on the same part of the sheet.
+
+@c The text on right hand pages is pushed towards the right hand
+@c margin and the text on left hand pages is pushed toward the left
+@c hand margin.
+@c (To provide the reverse effect, set bindingoffset to -0.75in.)
+@tex
+\global\bindingoffset=0.75in
+\global\normaloffset =0.75in
+@end tex
+@end ifset
+
+@c Macro to generate a "For the N.N.N version" subtitle on the title
+@c page of TeX documentation. This macro should be used in the
+@c titlepage environment after the title and any other subtitles have
+@c been placed, and before any authors are placed.
+@macro versionsubtitle
+@ifclear DEVELOPMENT
+@subtitle For @sc{gcc} version @value{version-GCC}
+@end ifclear
+@ifset DEVELOPMENT
+@subtitle For @sc{gcc} version @value{version-GCC} (pre-release)