gcc and g++ weird compile error

[opengl_cpp]

Hi guys.

I don't know why, but recently gcc/g++ always give me this error every time i try to compile something.

` C preprocessor "/lib/cpp" fails sanity check `

I checked /lib/cpp, I can't see /cpp directory under /lib, it seems to be removed.

I downloaded the whole gcc using apt-get but it didnt solve my problem.
if you have any suggestion, ill appreciate?s

[denarced]

Hi guys.

I don't know why, but recently gcc/g++ always give me this error every time i try to compile something.

` C preprocessor "/lib/cpp" fails sanity check `

I checked /lib/cpp, I can't see /cpp directory under /lib, it seems to be removed.

I downloaded the whole gcc using apt-get but it didnt solve my problem.
if you have any suggestion, ill appreciate?s

the source code?
command you used?

[deer dance]

It appears that part of the compiler has gone missing, perhaps reinstalling gcc will solve the problem?

[eewoz]

Hi guys.

I don't know why, but recently gcc/g++ always give me this error every time i try to compile something.

` C preprocessor "/lib/cpp" fails sanity check `

I checked /lib/cpp, I can't see /cpp directory under /lib, it seems to be removed.

I downloaded the whole gcc using apt-get but it didnt solve my problem.
if you have any suggestion, ill appreciate?s

I don't know if this helps or not but on my installation in the /lib directory there is a shortcut called cpp that points to /etc/alternatives/cpp.

[opengl_cpp]

thank you guys.
Maybe a explained my problem ambiguously. In fact I have no problem at compile time. But the problem is when i want to configure a source package. For example I download an application from sourceforge.com, when I issue ./configure it checks my system for dependencies, and riches to a point and warn me about my c headers, as i said at the top.

Maybe the problem comes from my libtools? i donno how to install that on my ubuntu????

[daasdingo]

have you installed the

build-essential

package? you should at least have that one for compiling

[opengl_cpp]

oh, i tried to install it before, and ubuntu said it was installed already. i mean i have this package. i searched the nest, but there was nothing useful.

i fear, if i have to reinstall the os.

i dont want to lose all of my data.

[dwhitney67]

i dont want to lose all of my data.
You wouldn't if you were to create a separate partition for storing your data (including user accounts).

[opengl_cpp]

unfortunately I have a single partition.
how can i fix this problem. Is it imposibble to shrink my partition and move my home dir to it, before reinstalling ubunut?