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-rw-r--r--include/ruby/defines.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/include/ruby/defines.h b/include/ruby/defines.h
index de0883d2c9..131b2222fc 100644
--- a/include/ruby/defines.h
+++ b/include/ruby/defines.h
@@ -22,6 +22,41 @@ extern "C" {
#include RUBY_EXTCONF_H
#endif
+/* AC_INCLUDES_DEFAULT */
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+# include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
#define RUBY
# include <stddef.h>