diff --git a/texlive-20180414-source/texk/web2c/luatexdir/luaffi/ffi.h b/texlive-20180414-source/texk/web2c/luatexdir/luaffi/ffi.h

index 8be6ecc..94d082c 100644

--- a/texlive-20180414-source/texk/web2c/luatexdir/luaffi/ffi.h

+++ b/texlive-20180414-source/texk/web2c/luatexdir/luaffi/ffi.h

@@ -46,8 +46,10 @@ extern "C" {

 /* We should include something equivalent to */

 /* complex.h                                 */

 #else

+#if !defined(__LCC__)

 #include <complex.h>

 #define HAVE_COMPLEX

+#endif

 #define HAVE_LONG_DOUBLE

 #endif