From owner-freebsd-hackers  Sat Mar 30  6:56:28 2002
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Date: Sat, 30 Mar 2002 13:40:07 +0100 (CET)
From: Alexander Leidinger <Alexander@Leidinger.net>
Subject: Re: lang/icc doesn't compile c++ sources
To: corecode@corecode.ath.cx
Cc: hackers@freebsd.org
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On 30 Mär, Simon 'corecode' Schubert wrote:

> but i can't get icc to compile a single c++ source:
> it always fails on the headers.
> 
> just a simple echo '#include<iostream>' > comp.cc
> won't compile. i've tested the include files of
> o icc
> o gcc 2.95.3 (the one from my base system, 4.5-S)
> o gcc 3.0.4 (from the ports)
> 
> each one gives me a different error.

I tried this:
­--snip---
#include<iostream>

int main(void)
{
        cout << "Hello World";
        exit(0);
}
---snip---

- gcc from -current didn't fails (and no errors).
- icc complains about:
---snip---
test.cpp:
"/usr/include/stdlib.h", line 57: error: invalid combination of type specifiers
  typedef       _BSD_WCHAR_T_   wchar_t;
                                ^

"/usr/local/intel/compiler50/ia32/include/cwchar", line 16: error: the global scope has no "tm"
  using ::mbstate_t; using ::size_t; using ::tm; using ::wint_t;
                                             ^

"/usr/local/intel/compiler50/ia32/include/cwchar", line 19: error: the global scope has no "btowc"
  using ::btowc;
          ^

"/usr/local/intel/compiler50/ia32/include/cwchar", line 22: error: the global scope has no "mbrlen"
  using ::mbrlen; using ::mbrtowc; using ::mbsrtowcs;
          ^
[and so on]
---snip---

I think this is because of our wchar implementation (mostly a stub if I
remember correctly), but I could be wrong on this.

> if not, i'd like to work on that, but i don't know where to start.

If you have to patch some Intel headers, then you have to work on a
"make pre-patch" version of icc. Don't forget to apply patch-include by
hand before you make diffs.

Bye,
Alexander.

-- 
              The best things in life are free, but the
                expensive ones are still worth a look.

http://www.Leidinger.net                       Alexander @ Leidinger.net
  GPG fingerprint = C518 BC70 E67F 143F BE91  3365 79E2 9C60 B006 3FE7


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