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-rw-r--r--mrbgems/mruby-sprintf/src/sprintf.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mrbgems/mruby-sprintf/src/sprintf.c b/mrbgems/mruby-sprintf/src/sprintf.c
index f8d88e57e..558d57173 100644
--- a/mrbgems/mruby-sprintf/src/sprintf.c
+++ b/mrbgems/mruby-sprintf/src/sprintf.c
@@ -6,6 +6,10 @@
#include <mruby.h>
+#ifdef MRB_DISABLE_STDIO
+# error sprintf conflicts 'MRB_DISABLE_STDIO' configuration in your 'build_config.rb'
+#endif
+
#include <limits.h>
#include <string.h>
#include <mruby/string.h>