conditionally build strnlen if needed.

it is only used by strndup

prodded by Sortie@

1 files changed, 5 insertions, 0 deletions

diff --git a/configure.ac.tpl b/configure.ac.tpl
index b557687..87a571d 100644
--- a/configure.ac.tpl
+++ b/configure.ac.tpl
@@ -72,6 +72,11 @@ AC_CHECK_FUNC(strndup,
         AC_DEFINE(NO_STRNDUP)
         AM_CONDITIONAL(NO_STRNDUP, true))
 
+AC_CHECK_FUNC(strnlen,
+        AM_CONDITIONAL(NO_STRNLEN, false),
+        AC_DEFINE(NO_STRNLEN)
+        AM_CONDITIONAL(NO_STRNLEN, true))
+
 AC_CHECK_FUNC(asprintf,
         AM_CONDITIONAL(NO_ASPRINTF, false),
         AC_DEFINE(NO_ASPRINTF)