#ifndef #define pattern - don't generate const

[dcharkes]

  #ifndef __GNUC_VA_LIST
  #define __GNUC_VA_LIST
! #if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX) || defined(__NetBSD__)
! typedef char *__gnuc_va_list;
! #else
! typedef void *__gnuc_va_list;
! #endif
  #endif

This generates a const int __GNUC_VA_LIST = 1;.

The const is meaningless here, because it's never used as integer.

Workaround:

macros:
  exclude:
    - __GNUC_VA_LIST

Could we detect this pattern?

[mannprerak2]

LibClang provides almost no support over handling macros in any way. How we deal with macros currently is to create a new C++ file and add all macros to it like this -

auto m1 = MACRO1;
auto m2 = MACRO2;
...

Then we parse this file and let LibClang automatically fix any syntax errors.

The next thing we could do is to parse the raw lexical tokens but that would be very tricky.

[dcharkes]

Hm, maybe we should just use the workaround for now then.