From <https://lists.gnu.org/archive/html/automake-patches/2015-07/msg00000.html>. See also <http://bugs.gnu.org/22372>. From 34163794a58b5bd91c5d6bd9adf5437571c7a479 Mon Sep 17 00:00:00 2001 From: Pavel Raiskup <praiskup@redhat.com> Date: Tue, 7 Jul 2015 10:54:24 +0200 Subject: [PATCH] bin/automake: escape '{' in regexp pattern Based on perlre(1) documentation: .. in Perl v5.26, literal uses of a curly bracket will be required to be escaped, say by preceding them with a backslash ("\{" ) or enclosing them within square brackets ("[{]") .. References: https://bugzilla.redhat.com/1239379 * bin/automake.in (substitute_ac_subst_variables): Escape the occurrence of '{' character. --- bin/automake.in | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/bin/automake.in b/bin/automake.in index 0c29184..c294ced 100644 --- a/bin/automake.in +++ b/bin/automake.in @@ -3898,7 +3898,7 @@ sub substitute_ac_subst_variables_worker sub substitute_ac_subst_variables { my ($text) = @_; - $text =~ s/\${([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge; + $text =~ s/\$\{([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge; return $text; }