UnrealIRCd Forums

Posted: **Mon Feb 06, 2006 4:46 am**

Ok for some reason everytime I try to do a ./Config make install it exits out and creates an error log regarding my Compiler on a Fedora 4 core... hopefully one of you pros can help me out being not quite a pro myself when it comes to linux... I always get an error that states this... error: c++ preprocessor"/lib/cpp" fails sanity check .... anyone have any suggestions... I have allready checked the log file and havent noticed the problem as of yet....

Posted: **Mon Feb 06, 2006 5:00 am**

In short, it means your compiler is broken

Posted: **Mon Feb 06, 2006 5:01 am**

any recommendations on a new one?

Posted: **Mon Feb 06, 2006 5:08 am**

I think you can just reinstall it, not sure. Someone should know how, and might even be able to give you simple steps for doing so.

Posted: **Mon Feb 06, 2006 6:06 am**

well I reinstalled my c compiler and now it compiles but on running it gives a ./unreal: line 10: /unreal/unreal3.2/src/ircd no such file or directory.

then It gives - tail: cannot open 'unreal/unreal3.2/ircd.log' for reading: Not a Directory

Posted: **Mon Feb 06, 2006 7:00 am**

ok well deleted everything and started fresh with the new compiler and everything is peaches now thanks for help!

Posted: **Tue Feb 07, 2006 1:44 am**

hi i have the some problem in two box i can't compile the new version, what do u do it for install it?

greetins.!

checking for xlC... no
checking whether we are using the GNU C++ compiler... no
checking whether g++ accepts -g... no
checking dependency style of g++... none
checking how to run the C++ preprocessor... /lib/cpp
configure: error: C++ preprocessor "/lib/cpp" fails sanity check
See `config.log' for more details.

how can i reinstall the compilers if the problems is it.?

Posted: **Tue Feb 07, 2006 9:40 am**

install g++ ... on debian, it's a simple "aptitude install g++" ... on other machines ... ask google

Posted: **Fri Feb 10, 2006 9:55 pm**

Cheetah (or anyone that wishes to be nice) - I got the same error on fedora core2, how do you upgrade the compiler? :/

Posted: **Sat Feb 11, 2006 12:04 am**

FYI, I added a FAQ item a few days ago:
Compiling - configure: error: C++ preprocessor "/lib/cpp" fails sanity check

As mentioned there, the package you are looking for is probably 'gcc-c++' (in short, run: 'yum install gcc-c++')

EDIT: Oh and as you can see.. This is about installing a C++ compiler, so it's not like something is actually broken on your system, no.. you are missing something :P.

Posted: **Tue Mar 07, 2006 11:17 pm**

Hello I have the same problem like those guys upthere.

I ran the ./Config command and it stop with the C++ preprocessor error.

So I tried installing gcc-c++ (yum instal gcc-c++) and then it tells me it needs "Error: Missing Dependency: libstdc++-devel = 4.0.2-8.fc4 is needed by package gcc-c++"

So when I downloaded the "libstdc++-4.0.2-8.fc4.i386.rpm" package and run the rpm it tells me this:

Code: Select all

[root@savor ~]# rpm -ivh libstdc++-4.0.2-8.fc4.i386.rpm

Preparing...                ########################################### [100%]
        package libstdc++-4.0.2-8.fc4 is already installed

I don't understaind this. Could someone help me out please.

Thanks

/EDIT: my mistake: didnt see it was libstdc++-devel i needed instead of libstdc++

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