* lib/m4sugar/Makefile.am (version.m4): Another bash bug workaround.
diff --git a/lib/m4sugar/Makefile.am b/lib/m4sugar/Makefile.am
index c983286..de32907 100644
--- a/lib/m4sugar/Makefile.am
+++ b/lib/m4sugar/Makefile.am
@@ -24,7 +24,9 @@ CLEANFILES = $(nodist_m4sugarlib_DATA)
## version.m4. ##
## ------------ ##
+# The `:;' works around a redirected compound command bash exit status bug.
version.m4: $(top_srcdir)/configure.ac
+ :; \
{ \
echo '# This file is part of -*- Autoconf -*-.'; \
echo '# Version of Autoconf.'; \
