Add support to define structures in mig.v1.8+git20221111

Basic syntax is presented below and allows users to define
nested structured types by using simpler or structure types as
members. Mig will use the C padding and alignment rules to produce
the same size as the corresponding C structures.

type timespec_t = struct {
  uint32_t tv_sec;
  uint32_t tv_nsec;
};

This allows us to build stubs that are more easily adaptable to other
architectures.
Message-Id: <Y2SjQSMOINY8I5Dy@viriathus>

1 files changed, 11 insertions, 0 deletions

diff --git a/utils.h b/utils.h
index a5673b0..64e2ebf 100644
--- a/utils.h
+++ b/utils.h
@@ -27,8 +27,19 @@
 #ifndef	_UTILS_H
 #define	_UTILS_H
 
+#include "routine.h"
+
 /* stuff used by more than one of header.c, user.c, server.c */
 
+#define MAX(a,b) \
+  ({ __typeof__ (a) _a = (a); \
+      __typeof__ (b) _b = (b); \
+    _a > _b ? _a : _b; })
+#define MIN(a,b) \
+  ({ __typeof__ (a) _a = (a); \
+      __typeof__ (b) _b = (b); \
+    _a > _b ? _b : _a; })
+
 typedef void	write_list_fn_t(FILE *file, const argument_t *arg);
 
 extern void WriteImport(FILE *file, const_string_t filename);