c++ and rtl / posix_types.h

[Olaf Petzold <opetzold@wit.regiocom.net>]

Hallo,

one more with c++. Why are the macros __NFDBITS and __FDMASK redefined
inside linux/posix_types.h. For me it looks the same at first glance.

# make
c++ -DHAVE_CONFIG_H -I. -I. -I.. -I../common -I../kcpplib -I/usr/src/linux/include -I/usr/rtlinux/include -I/usr/rtlinux/include/compat -I/usr/rtlinux/include/posix    -Wall -Wstrict-prototypes -Winline -m486 -malign-loops=2 -malign-jumps=2 -malign-functions=2 -fno-exceptions -fno-rtti -pipe -fno-strength-reduce -mpreferred-stack-boundary=2 -DCPU=686 -march=i686 -Wall -Wstrict-prototypes -D__RTL__ -D__KERNEL__ -DMODULE -D_LOOSE_KERNEL_NAMES -g -DDEBUG  -c DaqCard.cc
In file included from /usr/include/stdio.h:40,
                 from /usr/lib/gcc-lib/i386-redhat-linux/2.95.2/../../../../include/g++-3/cstdio:6,
                 from DaqCard.cc:44:
/usr/include/bits/types.h:95: warning: `__NFDBITS' redefined
/usr/src/linux/include/linux/posix_types.h:22: warning: this is the location of the previous definition
/usr/include/bits/types.h:97: warning: `__FDMASK' redefined
/usr/src/linux/include/linux/posix_types.h:34: warning: this is the location of the previous definition              

Next, how was in sucess to mix stl headers and kernel headers ?     
stl_alloc.h fails with PTHREAD_MUTEX_INITIALIZER

Thanks Olaf