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Old 01-28-2003, 05:17 PM   #1
Registered: Dec 2002
Location: Mexico
Distribution: ArchLinux 0.7, Slackware 10.1
Posts: 61

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Angry Problems compiling nvidia driver

I've been trying to compile the nvidia geforce 2 drivers from the tar file.
I was following instructions, everything went smoothly, until i tried to make install the file.
It showed this message:

You appear to be compiling the NVIDIA kernel module with
a compiler different from the one that was used to compile
the running kernel. This may be perfectly fine, but there
are cases where this can lead to unexpected behaviour and
system crashes.

If you know what you are doing and want to override this
check, you can do so by setting IGNORE_CC_MISMATCH.

In any other case, set the CC environment variable to the
name of the compiler that was used to compile the kernel.

I found this exact error,on the readme's faq. They give you a lot of information, but they dont mention how to avoid or correct this error. Here is the info from the faq:

A: You should compile the NVIDIA kernel module with the same compiler
version that was used to compile your kernel. Some Linux kernel data
structures are dependent on the version of gcc used to compile it;
for example, in include/linux/spinlock.h:

* Most gcc versions have a nasty bug with empty initializers.
#if (__GNUC__ > 2)
typedef struct { } rwlock_t;
#define RW_LOCK_UNLOCKED (rwlock_t) { }
typedef struct { int gcc_is_buggy; } rwlock_t;
#define RW_LOCK_UNLOCKED (rwlock_t) { 0 }

If the kernel is compiled with gcc 2.x, but gcc 3.x is used when the
open files in the NVIDIA_kernel package are built (or vice versa),
the size of rwlock_t will vary, and things like ioremap will fail.

To check what version of gcc was used to compile your kernel, you
can examine the output of:

cat /proc/version

To check what version of gcc is currently in your $PATH, you can
examine the output of:

gcc -v

Can anyone help me get this done????
If this has already been talked about in another forum, please point me to it.
Old 01-28-2003, 05:51 PM   #2
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Registered: Dec 2001
Location: Brooklyn, NY
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Search here for IGNORE_CC_MISMATCH
You are one command away from getting NVIDIA drivers to compile
Old 01-28-2003, 11:42 PM   #3
Registered: Dec 2002
Location: Mexico
Distribution: ArchLinux 0.7, Slackware 10.1
Posts: 61

Original Poster
Rep: Reputation: 15
Did what you said and it stopped showing the error, but now i get another error message

[nef@localhost NVIDIA_kernel-1.0-4050]$ export IGNORE_CC_MISMATCH=1
[nef@localhost NVIDIA_kernel-1.0-4050]$ make install
echo \#define NV_COMPILER \"`cc -v 2>&1 | tail -1`\" > nv_compiler.h
cc -c -Wall -Wimplicit -Wreturn-type -Wswitch -Wformat -Wchar-subscripts -Wparen theses -Wpointer-arith -Wcast-qual -Wno-multichar -O -MD -D__KERNEL__ -DMODULE -D_LOOSE_KERNEL_NAMES -ffixed-r13 -mfixed-range=f10-f15,f32-f127 -falign-functio ns=32 -DIA64=1 -D_LINUX64=1 -DNTRM -D_GNU_SOURCE -D_LOOSE_KERNEL_NAMES -D__KERNE L__ -DMODULE -DNV_MAJOR_VERSION=1 -DNV_MINOR_VERSION=0 -DNV_PATCHLEVEL=4050 - DNV_UNIX -DNV_LINUX -DNV_INT64_OK -DNV_64_BITS -DNVCPU_IA64_LINUX -DNVCPU_IA64 -I. -I/usr/src/linux/include -Wno-cast-qual nv.c
make: cc: Command not found
make: *** [nv.o] Error 127

Any ideas???


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