strnstr errors in tests while on NetBSD

Hi,

while building tests on NetBSD/sparc I saw that many tests failed for
this reason:

build.m:7:1: error: conflicting types for 'strnstr'
 strnstr(const uint8_t *buf, unsigned len, const uint8_t *str)
 ^
In file included from
/home/multix/gnustep-svc/libs-base/Headers/GNUstepBase/GSConfig.h:430:0,
                 from
/home/multix/gnustep-svc/libs-base/Headers/GNUstepBase/GSVersionMacros.h:224,
                 from
/home/multix/gnustep-svc/libs-base/Headers/Foundation/Foundation.h:30,
                 from build.m:2:
/usr/include/string.h:107:7: note: previous declaration of 'strnstr' was
here
 char *strnstr(const char *, const char *, size_t);


they don't even build.


Riccardo