On Fri, 2 Sep 2011, Maciej Bliziński wrote:
Hello,
While attempting to build PPL on Solaris 10 with gcc-4.6.1, I
encountered a problem. The first error looks like this:
Actually there is like a million other errors in there (those about limits
are particularly noticable), I would say the gcc installation is broken.
Maybe the new installation got mixed up with an old one? One way to check,
compile a file containing #include <limits> with g++ -E file.cc and check
the list of files that are read (c++config.h in particular).
/opt/csw/lib/gcc/sparc-sun-solaris2.10/4.6.1/../../../../include/c++/4.6.1/cwchar:214:35:
error: 'wchar_t* std::wcschr(wchar_t*, wchar_t)' conflicts with
previous using declaration 'wchar_t* wcschr(wchar_t*, wchar_t)'
From the following errors, it looks like there's a disagreement
between these two header files:
/usr/include/iso/wchar_iso.h
/opt/csw/include/c++/4.6.1/cwchar
The Solaris header says:
#if __cplusplus >= 199711L
(...)
#else /* __cplusplus >= 199711L */
extern wchar_t *wcschr(const wchar_t *, wchar_t);
(...)
#endif /* __cplusplus >= 199711L */
while the GCC header:
#ifndef __CORRECT_ISO_CPP_WCHAR_H_PROTO
inline wchar_t*
wcschr(wchar_t* __p, wchar_t __c)
{ return wcschr(const_cast<const wchar_t*>(__p), __c); }
(...)
#endif
That's called overloading, and it isn't what g++ is complaining about.
Do you have any advice?
When you install gcc, keep it simple, don't specify much more than
--prefix.
--
Marc Glisse
