Why cannot compute suffix of object files?
 

When I install glibc-2.3.4 in chapter 6.11,there is an error :checking for suffix of object files... configure: error: cannot compute suffix of object files:cannot compile
See 'config.log' for more details.

Why?And how can I continue.thanks!

I think the problem has to do with gcc.
Take a look at http://www.linuxquestions.org/questions/history/339554
Could you post the whole error?

Thanks!:)

I suggest to look at LD_LIBRARY_PATH or LD_LIBRARYN32_PATH, and you may fix it! :)

Daniel

Hi,
I get the same error(checking for suffix of object files... configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
) above after running the command below:
BUILD_CC="gcc" CC="${CLFS_TARGET}-gcc" \
AR="${CLFS_TARGET}-ar" RANLIB="${CLFS_TARGET}-ranlib" \
../glibc-2.6.1/configure --prefix=/usr \
--libexecdir=/usr/lib/glibc --host=${CLFS_TARGET} --build=${CLFS_HOST} \
--disable-profile --enable-add-ons --with-tls --enable-kernel=2.6.0 \
--with-__thread --with-binutils=${CLFS}/cross-tools/bin \
--with-headers=${CLFS}/usr/include --cache-file=config.cache

But I don't know how must I set LD_LIBRARY_PATH or LD_LIBRARYN32_PATH and fix :(
Can you say according to what clearly?
Thanks in advance.

I encountered this problem on my RHEL 5.5 Server, the solution to which is rather trickey: first, you should install gmp by ./configure && make && make install; second, install mpfr by ./configure --with-gmp=/usr/local && make && make install; third, it is vital to move any .so files pertaining to gmp or mpfr from /usr/local to another place while leaving .a files untouched; fourth, you can now go into the gcc folder and do make clean && ./configure --prefix=/usr --with-gmp=/usr/local --with-mpfr=/usr/local && make -j 4 && make install; last, restore those .so files you moved.

I got the same error attempting to compile g++ 4.5.0
 

so I can use other things that need g++.
cannot compute suffix of object files: cannot compile

This fixed my problem
 

Thanks to cjrcl for this post - it solved the problem I was having compiling gcc-4.5.1 on
Fedora 13, running on a Mac under VMWare. I note that the latest gcc now needs an
additional library mpc, so I just continued the system mentioned above with configure and
--with-mpc=/usr/local and everything worked brilliantly.
Thanks again.

Thanks cjrcl excellent solution... worked for me to compile gcc 4.5.1 in centos 5.5

works for gcc 4.3.6 on itanium ia64 novell sles 10
 

thanks for the hint. moved the *.so files out of the directories where I have them installed to a temporary location for
/usr/local/gmp-5.0.1
/usr/local/mpfr-3.0.0
/usr/local/mpc-0.8.2

started fresh with ./configure, then make all and it built gcc 4.3.6.

this was on a server running Novell Linux Enterprise Server (SLES) version 10 for Itanium (ia64) that originally came with gcc 4.1.2. I had in the past built gcc-4.2.4 and I used 4.2.4 to build 4.3.6 successfully following the above.

Thank you a lot.

I needed a 2 steps compiling.
I moved mpfr, gmp, and mpc shared librairies from /usr/local/lib. Then, running make led to "missing gmp lib". So, I moved back the libraries and ran make once again(without any make clean between), and it succeeded.

A tip for those from the future
 

I came across this thread when investigating a failing install process for GCC. Lakeat had a good tip, if vague. You should add to your LD_LIBRARY_PATH the path to your installations for MPFR, MPC, and GMP. This works regardless of whether you install in your home directory or not.