Include <stdio.h> if NDEBUG is not defined; needed on SunOS 4.

From Paul Eggert.

diff --git a/lib/xstrtol.c b/lib/xstrtol.c
index 0dc871e..cd85a3f 100644 (file)
--- a/lib/xstrtol.c
+++ b/lib/xstrtol.c
@@ -36,6 +36,12 @@
 # endif
 #endif
 
+/* Some pre-ANSI implementations (e.g. SunOS 4)
+   need stderr defined if assertion checking is enabled.  */
+#ifndef NDEBUG
+# include <stdio.h>
+#endif
+
 #include <assert.h>
 
 #include <errno.h>