C preprocessor "/lib/cpp" fails sanity check; Centos 4.2

[spatz42]

When I run

./configure --with-mysql

I get the following output:

checking whether make sets $(MAKE)... yes
checking for gcc... gcc
checking for C compiler default output... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for main in -lsocket... no
checking for main in -lkstat... no
checking for main in -lnsl... yes
checking how to run the C preprocessor... /lib/cpp
configure: error: C preprocessor "/lib/cpp" fails sanity check
See `config.log' for more details.

SELinux is disabled.

Any hint is appreciated.

[grabber]

When I run

./configure --with-mysql

I get the following output:

checking whether make sets $(MAKE)... yes
checking for gcc... gcc
checking for C compiler default output... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for main in -lsocket... no
checking for main in -lkstat... no
checking for main in -lnsl... yes
checking how to run the C preprocessor... /lib/cpp
configure: error: C preprocessor "/lib/cpp" fails sanity check
See `config.log' for more details.

See installed Packages: http://www.ulrich-fink.de/packages.txt

See config.log: http://www.ulrich-fink.de/config.txt

SELinux is disabled.

Any hint is appreciated.

do you have the kernel dev package installed?

[spatz42]

no, i had not. now i have but it did not make a difference at all...

Tried to uninstall and reinstall all i could find about gcc, gcc-c++, cpp, ...

what am i doing wrong *desperate*