tests: avoid spurious failures with older Texinfo

* t/distcheck-override-infodir.sh (main.texi): Add explicit calls to
'@dircategory' and '@direntry', to ensure a 'dir' file will be created
also by 'install-info' coming with Texinfo 4.8.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

diff --git a/t/distcheck-override-infodir.sh b/t/distcheck-override-infodir.sh
index f7a5640f90a975562815454d65d2cf974fb5dc5f..ff792f7368a12fc139b517807f269917ade5efc4 100755 (executable)
--- a/t/distcheck-override-infodir.sh
+++ b/t/distcheck-override-infodir.sh
@@ -42,6 +42,22 @@ cat > main.texi << 'END'
 \input texinfo
 @setfilename main.info
 @settitle main
+
+@c Explicit calls to @dircategory and @direntry required to ensure that
+@c a 'dir' file will be created also by older versions of 'install-info'
+@c (e.g., the one coming with Texinfo 4.8).
+
+@dircategory Software development
+@direntry
+* Automake: (automake).  Making GNU standards-compliant Makefiles
+@end direntry
+
+@dircategory Individual utilities
+@direntry
+* aclocal-invocation: (automake)aclocal Invocation.   Generating aclocal.m4
+* automake-invocation: (automake)automake Invocation. Generating Makefile.in
+@end direntry
+
 @node Top
 Hello walls.
 @bye