--- a/QuadFloat.st	Thu Jun 06 23:31:10 2019 +0200
+++ b/QuadFloat.st	Fri Jun 07 00:03:48 2019 +0200
@@ -18,6 +18,8 @@
 #endif
 
 #ifdef SUPPORT_QUADFLOAT
+# include <stdint.h>
+
 /*----------------------------------------------------------------------------
 | Software floating-point underflow tininess-detection mode.
 *----------------------------------------------------------------------------*/