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authorMike Frysinger <vapier@gentoo.org>2022-02-24 22:25:45 -0500
committerMike Frysinger <vapier@gentoo.org>2022-03-05 14:34:19 -0500
commitff230b2956aafd42161f203fabde7ce05ea4d8c0 (patch)
treec9426fbd1a9fddab0353c9cc0f9f80bf64208a78
parentce3bbbb49b22b0d5e7d0d74b2d44438dbc942f7e (diff)
downloadautomake-ff230b2956aafd42161f203fabde7ce05ea4d8c0.tar.gz
automake: fall back gracefully when texinfo inputs don't exist
Fixes automake bug https://bugs.gnu.org/54063. The function scanning for @setfilename will fall back to a default value if the input doesn't have one defined. But we need to handle the case where the file doesn't even exist before falling back. * bin/automake.in: Scan /dev/null for @setfilename if input doesn't exist. * t/list-of-tests.mk: Add txinfo-no-setfilename-no-inputs.sh. * t/txinfo-no-setfilename-no-inputs.sh: New test.
-rw-r--r--bin/automake.in4
-rw-r--r--t/list-of-tests.mk1
-rw-r--r--t/txinfo-no-setfilename-no-inputs.sh31
3 files changed, 35 insertions, 1 deletions
diff --git a/bin/automake.in b/bin/automake.in
index 9747510f9..c094234bc 100644
--- a/bin/automake.in
+++ b/bin/automake.in
@@ -3062,7 +3062,9 @@ sub scan_texinfo_file
{
my ($filename) = @_;
- my $texi = new Automake::XFile "< $filename";
+ # If the source file doesn't exist, we'll fall back below.
+ my $source = -e $filename ? $filename : "/dev/null";
+ my $texi = new Automake::XFile "< $source";
verb "reading $filename";
my ($outfile, $vfile);
diff --git a/t/list-of-tests.mk b/t/list-of-tests.mk
index dbfd8d6d1..0af117a5a 100644
--- a/t/list-of-tests.mk
+++ b/t/list-of-tests.mk
@@ -1230,6 +1230,7 @@ t/txinfo-no-extra-dist.sh \
t/txinfo-no-installinfo.sh \
t/txinfo-no-repeated-targets.sh \
t/txinfo-no-setfilename.sh \
+t/txinfo-no-setfilename-no-inputs.sh \
t/txinfo-other-suffixes.sh \
t/txinfo-override-infodeps.sh \
t/txinfo-override-texinfo-tex.sh \
diff --git a/t/txinfo-no-setfilename-no-inputs.sh b/t/txinfo-no-setfilename-no-inputs.sh
new file mode 100644
index 000000000..4cedb2f88
--- /dev/null
+++ b/t/txinfo-no-setfilename-no-inputs.sh
@@ -0,0 +1,31 @@
+#! /bin/sh
+# Copyright (C) 2022 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+# Check Texinfo files work without a @setfilename line and no input files.
+# https://bugs.gnu.org/54063
+
+. test-init.sh
+
+cat > Makefile.am << 'END'
+info_TEXINFOS = file.texi
+END
+
+$ACLOCAL
+$AUTOMAKE --add-missing
+
+grep 'file.info:' Makefile.in
+
+: