[ng] texi: drop support for suffix-less info files

Such support is seldom used, and will get in the way of future, useful
refactorings.  We can still re-introduce it at a later time, after the
dust is settled, if there are users' requests in this direction.

* automake.in (scan_texinfo_file): Error out if a input '.texi' file
specifies an output (in the '@setfilename' directive) that doesn't have
a '.info' extension.
(output_texinfo_build_rules): Simplify, by assuming generated info
files ought to have the '.info' extension.
* lib/am/texibuild.am: Likewise.
* NG-NEWS: Update
* t/txinfo3.sh: Remove as obsolete.
* t/txinfo-unrecognized-extension-2.sh: New test.
* t/primary-prefix-valid-couples.sh: Adjust to avoid spurious failures.
* t/txinfo17.sh: Likewise.
* t/txinfo20.sh: Likewise.
* t/vtexi2.sh: Likewise.
* t/mdate2.sh: Likewise.

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

1 files changed, 12 insertions, 10 deletions

diff --git a/t/txinfo20.sh b/t/txinfo20.sh
index 5c07880c1..98c044ee4 100755
--- a/t/txinfo20.sh
+++ b/t/txinfo20.sh
@@ -29,7 +29,7 @@ mkdir sub
 
 cat > main.texi << 'END'
 \input texinfo
-@setfilename main
+@setfilename main.info
 @settitle main
 @node Top
 Hello walls.
@@ -46,15 +46,15 @@ $AUTOCONF
 $MAKE
 
 # Feign more info files.
-: > main-1
-: > sub/main-1
+: > main.info-1
+: > sub/main.info-1
 
 # Break main.texi.
 $sleep
 cp main.texi main.old
 cat > main.texi << 'END'
 \input texinfo
-@setfilename main
+@setfilename main.info
 @settitle main
 @node Top
 @unknown_macro{Hello walls.}
@@ -63,14 +63,16 @@ END
 
 # makeinfo will bail out, but we should conserve the old info files.
 $MAKE && Exit 1
-test -f main
-test -f main-1
+test -f main.info
+test -f main.info-1
 
 # Restore main.texi, and break sub/main.texi.
 cp main.texi sub/main.texi
 mv main.old main.texi
 $MAKE && Exit 1
-test -f main
-test ! -f main-1
-test -f sub/main
-test -f sub/main-1
+test -f main.info
+test ! -f main.info-1
+test -f sub/main.info
+test -f sub/main.info-1
+
+: