Include memory.h, string.h, and/or strings.h as needed.

(this snippet comes from src/system.h).

diff --git a/lib/strnlen.c b/lib/strnlen.c
index f5681ca383919053795d35fc4dba5f96388b8121..556d2d55ce3aacdbcf5d2e4cd8a1e532ec55f016 100644 (file)
--- a/lib/strnlen.c
+++ b/lib/strnlen.c
@@ -21,7 +21,14 @@
 # include <config.h>
 #endif
 
-#include <string.h>
+#if HAVE_STRING_H
+# if !STDC_HEADERS && HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#else
+# include <strings.h>
+#endif
 
 #ifndef HAVE_DECL_MEMCHR
 "this configure-time declaration test was not run"