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-rw-r--r--configure.ac4
1 files changed, 4 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 80a178cb..92ca41e4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -240,6 +240,10 @@ AC_SUBST([locallibbindir], [${locallibdir}/bin])
AC_SUBST([localerlangbindir], [${locallibdir}/erlang/bin])
AC_SUBST([localerlanglibdir], [${locallibdir}/erlang/lib])
+# fix for older autotools that don't define "abs_top_YYY" by default
+AC_SUBST(abs_top_srcdir)
+AC_SUBST(abs_top_builddir)
+
AC_REVISION([LOCAL_VERSION])
AC_CONFIG_FILES([Makefile])