[EDG eccp/Linux] errors on wcschr() etc. in <ansi/wchar.h>

The library fails to build with EDG eccp 3.10 (and likely prior versions) on top of gcc 3.3.3 on SUSE Linux 9 with the errors below:

eccp -c -I/amd/devco/sebor/stdcxx/include/ansi -D_RWSTDDEBUG -I/amd/devco/sebor/stdcxx/include -I/build/sebor/stdcxx-eccp-3.10-11s/include -A -x --template_directory=/build/sebor/stdcxx-eccp-3.10-11s/lib -g --display_error_number --remarks --diag_suppress 193,236,340,401,261,479,487,678,679,815 /amd/devco/sebor/stdcxx/src/file.cpp
"/amd/devco/sebor/stdcxx/include/ansi/wchar.h", line 307: error #338: more
than one instance of overloaded function "wcschr" has "C" linkage
wcschr (const wchar_t *__s, wchar_t __c)
^

"/amd/devco/sebor/stdcxx/include/ansi/wchar.h", line 325: error #338: more
than one instance of overloaded function "wcsrchr" has "C" linkage
wcsrchr (const wchar_t *__s, wchar_t __c)
^

"/amd/devco/sebor/stdcxx/include/ansi/wchar.h", line 343: error #338: more
than one instance of overloaded function "wcsstr" has "C" linkage
wcsstr (const wchar_t *_s1, const wchar_t *_s2)
^

"/amd/devco/sebor/stdcxx/include/ansi/wchar.h", line 361: error #338: more
than one instance of overloaded function "wmemchr" has "C" linkage
wmemchr (const wchar_t *__s, wchar_t __c, _RWSTD_SIZE_T __n)
^

"/amd/devco/sebor/stdcxx/include/ansi/wchar.h", line 325: error #247: function
"wcsrchr(const wchar_t *, wchar_t) C" has already been defined
wcsrchr (const wchar_t *__s, wchar_t __c)
^

5 errors detected in the compilation of "/amd/devco/sebor/stdcxx/src/file.cpp".