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Diffstat (limited to 'Build/source/texk/web2c/luatexdir/ptexlib.h')
-rw-r--r--Build/source/texk/web2c/luatexdir/ptexlib.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/luatexdir/ptexlib.h b/Build/source/texk/web2c/luatexdir/ptexlib.h
index e6fa7920e12..4c2395c41fc 100644
--- a/Build/source/texk/web2c/luatexdir/ptexlib.h
+++ b/Build/source/texk/web2c/luatexdir/ptexlib.h
@@ -23,6 +23,10 @@
#ifndef PTEXLIB_H
# define PTEXLIB_H
+#ifdef HAVE_CONFIG_H
+#include <w2c/config.h>
+#endif
+
/* WEB2C macros and prototypes */
# define EXTERN extern
# include "luatex.h"