--- a/src/miniacc.h	2016-02-10 16:09:23.247315866 +0100
+++ a/src/miniacc.h	2016-02-10 16:12:14.973297054 +0100
@@ -4469,12 +4469,12 @@ 
 #if defined(__MSDOS__) && defined(__TURBOC__) && (__TURBOC__ < 0x0150)
 #elif 1 && (ACC_CC_SUNPROC) && !defined(ACCCHK_CFG_PEDANTIC)
 #else
-    ACCCHK_ASSERT((1   << (8*SIZEOF_INT-1)) < 0)
+    ACCCHK_ASSERT((int)(1u   << (8*SIZEOF_INT-1)) < 0)
 #endif
     ACCCHK_ASSERT((1u  << (8*SIZEOF_INT-1)) > 0)
 #if 1 && (ACC_CC_SUNPROC) && !defined(ACCCHK_CFG_PEDANTIC)
 #else
-    ACCCHK_ASSERT((1l  << (8*SIZEOF_LONG-1)) < 0)
+    ACCCHK_ASSERT((long)(1ul  << (8*SIZEOF_LONG-1)) < 0)
 #endif
     ACCCHK_ASSERT((1ul << (8*SIZEOF_LONG-1)) > 0)
 #if defined(acc_int16e_t)
@@ -4703,7 +4703,7 @@ 
 #elif 1 && (ACC_CC_LCC || ACC_CC_LCCWIN32) && !defined(ACCCHK_CFG_PEDANTIC)
 #elif 1 && (ACC_CC_SUNPROC) && !defined(ACCCHK_CFG_PEDANTIC)
 #elif !(ACC_BROKEN_INTEGRAL_PROMOTION) && (SIZEOF_INT > 1)
-    ACCCHK_ASSERT( (((unsigned char)128) << (int)(8*sizeof(int)-8)) < 0)
+    ACCCHK_ASSERT( (int)((unsigned int)((unsigned char)128) << (int)(8*sizeof(int)-8)) < 0)
 #endif
 #if (ACC_CC_BORLANDC && (__BORLANDC__ >= 0x0530) && (__BORLANDC__ < 0x0560))
 #  pragma option pop