c2v wrap sql.h encountered error (typedef enum)

[youyuanwu]

Hi, I am wrapping the odbc sql.h in linux using c2v but seems like the out file does not compile.

Repro steps: (I copied the sql.h from /usr/include to v repo)

bash:~/code/vlang/v/vlib/mssql$ ~/code/vlang/c2v/c2v wrap ./sql.h 
C to V translator 0.3.1
  translating ./sql.h         ... sql.v:101:15: error: unexpected token `(`, expecting name
   99 |     interval_type SQLINTERVAL
  100 |     interval_sign SQLSMALLINT
  101 |     intval Union (anonymous union at /usr/include/sqltypes.h
      |                  ^
  102 | }
  103 | type SQLBIGINT = int

Internal vfmt error while formatting file: ./sql.v.
Encountered a total of: 1 errors.
 took  1254 ms ; output .v file: ./sql.v
Translated   1 files in  1254 ms.

Problematic c code is this typedef enum in sqltypes.h

#if (ODBCVER >= 0x0300)
typedef enum
{
	SQL_IS_YEAR						= 1,
	SQL_IS_MONTH					= 2,
	SQL_IS_DAY						= 3,
	SQL_IS_HOUR						= 4,
	SQL_IS_MINUTE					= 5,
	SQL_IS_SECOND					= 6,
	SQL_IS_YEAR_TO_MONTH			= 7,
	SQL_IS_DAY_TO_HOUR				= 8,
	SQL_IS_DAY_TO_MINUTE			= 9,
	SQL_IS_DAY_TO_SECOND			= 10,
	SQL_IS_HOUR_TO_MINUTE			= 11,
	SQL_IS_HOUR_TO_SECOND			= 12,
	SQL_IS_MINUTE_TO_SECOND			= 13
} SQLINTERVAL;

#endif

Corresponding v code is :

struct SQL_INTERVAL_STRUCT { 
	interval_type SQLINTERVAL
	interval_sign SQLSMALLINT
	intval Union (anonymous union at /usr/include/sqltypes.h
}

c2v commit:

commit d7ac0c7b6830943c5441c94e17e62667a62e4934 (HEAD -> master, origin/master, origin/HEAD)
Author: Alexander Medvednikov <alexander@vlang.io>
Date:   Sun Jun 26 17:06:18 2022 +0300

    tests: remove unused files

v version:

V 0.2.4 28068e8