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[gnulib.git] / m4 / strerror_r.m4

diff --git a/m4/strerror_r.m4 b/m4/strerror_r.m4
index e886b5c..410dfdf 100644 (file)
--- a/m4/strerror_r.m4
+++ b/m4/strerror_r.m4
@@ -1,11 +1,12 @@
-#serial 1
+#serial 2
 
 dnl From Jim Meyering.
 dnl Determine whether the strerror_r implementation is one of
 dnl the broken ones that returns `int' rather than `char*'.
-dnl Actually, this tests only whether it returns an array,
-dnl but that should be enough.
-dnl This is used by lib/error.c.
+dnl Actually, this tests only whether it returns a scalar
+dnl or an array, but that should be enough.
+dnl On at least DEC UNIX 4.0[A-D] and HP-UX B.10.20, strerror_r
+dnl returns `int'.  This is used by lib/error.c.
 
 AC_DEFUN(jm_FUNC_STRERROR_R,
 [