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Date: Wed, 06 Feb 2008 17:47:05 -0700
From: Martin Sebor <sebor@roguewave.com>
Organization: Rogue Wave Software, Inc.
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To: dev@stdcxx.apache.org
Subject: Re: HP-UX 11.23 aCC 3.73
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Sender: Martin Sebor <msebor@gmail.com>

Scott Zhong wrote:
> Hi while compiling executables with stdcxx I ran into the following
> warnings during linking with +nostl flag:
> 
> ld: (Warning) Unsatisfied symbol "ostream::operator <<(const char *)" in
> file /usr/lib/pa20_64/libstd.sl
> ld: (Warning) Unsatisfied symbol "Class tables [Vtable] for type
> "bad_alloc"" in file /usr/lib/pa20_64/libstd.sl
> ld: (Warning) Unsatisfied symbol "Class tables [Vtable] dependent on key
> function: "exception::~exception()"" in file /usr/lib/pa20_64/libstd.sl
> ld: (Warning) Unsatisfied symbol "typeid<exception>" in file
> /usr/lib/pa20_64/libstd.sl
> ld: (Warning) Unsatisfied symbol "exception::~exception()" in file
> /usr/lib/pa20_64/libstd.sl
> ld: (Warning) Unsatisfied symbol "istream::do_ipfx(int)" in file
> /usr/lib/pa20_64/libstd.sl
> 
> after some research, I found that the compile lines needed +nostl as
> well to not include the stl that was shipped with HP-UX compiler.  But
> doing this I ran into compiler issues such as these:
> 
> # aCC +DD64 -D_RWSTD_USE_CONFIG -D_RWCONFIG=11d -I/build/include -AA -g
> -DRWDEBUG  +nostl +w +W229 +W361 +W392 +W431 +W655 +W684 +W818 +W819
> +W849 +W889 +W887 +W921 -D_RWSTDDEBUG -c  sizeof.cpp
> Error 112: "sizeof.cpp", line 4 # Include file <stdio.h> not found.
>     #include <stdio.h>
>              ^^^^^^^^^
> Error 328: "sizeof.cpp", line 16 # Function 'printf' has not been
> defined yet; cannot call.
>         printf ("/**/\n#undef RW_SIZEOF\n");
>         ^^^^^^
> Error 328: "sizeof.cpp", line 44 # Function 'size_t' has not been
> defined yet; cannot call.
>         do_print (                (size_t)(0), "SIZE_T");
>                                    ^^^^^^
> 
> After some searching, this macro seems to be the cause of the error:
> 
> _RWSTD_NO_DEPRECATED_C_HEADERS
> 
> It is defined in the file include/rw/_config-acc.h. Is there any reason
> behind the definition for that macro on HP UX platform or was it simply
> being defined because hp compiler ships with a version of stdcxx
> library?

There is a reason. There is some (brief) background in STDCXX-501:
   http://issues.apache.org/jira/browse/STDCXX-501

Martin

>