[C++20] Clean up using-declarations.

[ginac.git] / doc / examples / ginac-examples.texi

diff --git a/doc/examples/ginac-examples.texi b/doc/examples/ginac-examples.texi
index 2a109daa4c25496d559fb4d61913de88e1462b9f..02e1b412e2c8e4309cd4f63fd154921529cdc086 100644 (file)
--- a/doc/examples/ginac-examples.texi
+++ b/doc/examples/ginac-examples.texi
@@ -11,6 +11,12 @@
 @parindent=0pt
 @end iftex
 @c %**end of header
+
+@dircategory Mathematics
+@direntry
+* ginac-examples: (ginac-examples).                   C++ library for symbolic computation.
+@end direntry
+
 @ifnottex
 @node Top
 @end ifnottex