undef putenv

diff --git a/m4/mktime.m4 b/m4/mktime.m4
index 45d899af469ed15251ffb1e7c6b5e7af6be7ddcb..fef22225626aea3ded8442de4dac1e44c5d27d85 100644 (file)
--- a/m4/mktime.m4
+++ b/m4/mktime.m4
@@ -34,6 +34,9 @@ changequote(<<, >>)dnl
 # define alarm(X) /* empty */
 #endif
 
+/* Work around redefinition to rpl_putenv by other config tests.  */
+#undef putenv
+
 static time_t time_t_max;
 
 /* Values we'll use to set the TZ environment variable.  */