portability: add missing PRI* constants, signed 1 in bitfield hack

Add missing uses of PRI constants.

Create a PRI constant for size_t, since %z isn't available on all
platforms. Notably, the legacy Windows runtime needs %I instead of %z.
Use that on UCRT as well, since there doesn't seem to be a way to
determine if you are compiling for MSVCRT or UCRT.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>

include/compiler.h

@@ -99,6 +99,30 @@
 # include <sys/types.h>
 #endif
 
+/*
+ * This is impossible to do 100% accurately, because the actual type
+ * of size_t may differ from its range.
+ */
+#ifdef _WIN32
+# define PRIz "I"               /* Needed for msvcrt, not ucrt */
+#elif defined(PRINTF_SUPPORTS_Z) || \
+    (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
+# define PRIz "z"
+#elif SIZE_MAX == UINT_MAX
+# define PRIz ""
+#elif SIZE_MAX == ULONG_MAX
+# define PRIz "l"
+#elif SIZE_MAX == ULONGLONG_MAX
+# define PRIz "ll"
+#else
+# error "Unable to determine printf format for size_t"
+#endif
+#define PRIzd PRIz "u"          /* size_t is always unsigned */
+#define PRIzu PRIz "u"
+#define PRIzu PRIz "u"
+#define PRIzx PRIz "x"
+#define PRIzX PRIz "X"
+
 #ifdef HAVE_STDBIT_H
 
 # include <stdbit.h>

include/nasmlib.h

@@ -75,7 +75,7 @@ typedef union intorptr intorptr;
 
 #define mk_field(name,pos,width)                            \
     mk_field_mask(name,pos,width,                           \
-                  (ONE << name ## _WIDTH)-1)
+                  (1 << name ## _WIDTH)-1)
 
 /*
  * Cast a value to a suitable type to represent the encoded