https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82856
--- Comment #3 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
FWITW, the patch to automake
--- automake-1.11.orig 2017-11-06 21:47:27.451349052 +0100
+++ automake 2017-11-06 21:48:29.882102274 +0100
@@ -4156,7 +4156,7 @@
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;
}
seems to fix the issue for me.
