1 files changed, 6 insertions, 0 deletions
diff --git a/pp_sys.c b/pp_sys.c
index f837217098..72af678858 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -5208,6 +5208,12 @@ PP(pp_gpwent)
      * --jhi
      */
 
+#   if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
+    /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
+     * the pw_comment is left uninitialized. */
+    PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
+#   endif
+
     switch (which) {
     case OP_GPWNAM:
       {