[cfe-dev] error: cannot combine with previous 'type-name' declaration specifier

[Sascha Wildner]

Hi,

encouraged by the recent improvement in clang's C++ support, I tried 
building DragonFly's devd(8) with it but am getting:

clang -fno-color-diagnostics   -O -pipe  -I. 
-I/home/s/projects/dragonfly/src/sbin/devd  -g  -c devd.cc
In file included from devd.cc:59:
In file included from /usr/include/c++/4.1/algorithm:64:
In file included from /usr/include/c++/4.1/bits/stl_algobase.h:69:
In file included from /usr/include/c++/4.1/iosfwd:48:
In file included from /usr/include/c++/4.1/bits/postypes.h:45:
In file included from /usr/include/c++/4.1/cwchar:54:
/usr/include/wchar.h:78:19: error: cannot combine with previous 
'type-name' declaration specifier
typedef __wchar_t       wchar_t;
                         ^
/usr/include/wchar.h:78:1: error: declaration does not declare anything
typedef __wchar_t       wchar_t;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 diagnostics generated.
*** Error code 1

But what is the problem here?

Regards,
Sascha