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-rw-r--r--mrbgems/mruby-pack/src/pack.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mrbgems/mruby-pack/src/pack.c b/mrbgems/mruby-pack/src/pack.c
index 73428b0db..d953ce898 100644
--- a/mrbgems/mruby-pack/src/pack.c
+++ b/mrbgems/mruby-pack/src/pack.c
@@ -18,6 +18,10 @@
#define INT_OVERFLOW_P(n) ((n) < MRB_INT_MIN || (n) > MRB_INT_MAX)
#define UINT_OVERFLOW_P(n) ((n) > MRB_INT_MAX)
+#ifndef EOF
+# define EOF (-1) /* for MRB_NO_STDIO */
+#endif
+
struct tmpl {
mrb_value str;
int idx;