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-rw-r--r--internal/process.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/internal/process.h b/internal/process.h
index ceadfdcbbb..b9c52aebaa 100644
--- a/internal/process.h
+++ b/internal/process.h
@@ -20,6 +20,7 @@
#endif
#include "ruby/ruby.h" /* for VALUE */
+#include "internal/compilers.h" /* for __has_warning */
#include "internal/imemo.h" /* for RB_IMEMO_TMPBUF_PTR */
#include "internal/warnings.h" /* for COMPILER_WARNING_PUSH */