Hi Andrew,
        Before, I thought there is only one config.log under the root path.
        I have solved this error: gmp, mpfr, mpc library path should be added to LD_LIBRARY_PATH.

        This time, I am stuck with the following messages.
        Please help.
        Thanks.
--
minslin

-----------
checking if /home/minslin/ET0001A/build-gcc/./gcc/xgcc -B/home/minslin/ET0001A/build-gcc/./gcc/ -B/home/minslin/linaro-gcc/arm-eabi/bin/ -B/home/minslin/linaro-gcc/arm-eabi/lib/ -isystem /home/minslin/linaro-gcc/arm-eabi/include -isystem /home/minslin/linaro-gcc/arm-eabi/sys-include    supports -c -o file.o... (cached) yes
checking whether the /home/minslin/ET0001A/build-gcc/./gcc/xgcc -B/home/minslin/ET0001A/build-gcc/./gcc/ -B/home/minslin/linaro-gcc/arm-eabi/bin/ -B/home/minslin/linaro-gcc/arm-eabi/lib/ -isystem /home/minslin/linaro-gcc/arm-eabi/include -isystem /home/minslin/linaro-gcc/arm-eabi/sys-include    linker (/home/minslin/ET0001A/build-gcc/./gcc/collect-ld) supports shared libraries... yes
checking whether -lc should be explicitly linked in... yes
checking dynamic linker characteristics... no
checking how to hardcode library paths into programs... immediate
checking for shl_load... configure: error: Link tests are not allowed after GCC_NO_EXECUTABLES.
make[1]: *** [configure-target-libstdc++-v3] Error 1
make[1]: Leaving directory `/home/minslin/ET0001A/build-gcc'
make: *** [all] Error 2
------------

Some snippet of the arm-eabi/libgcc/config.log below
--------------
configure:3377: checking for /home/minslin/ET0001A/build-gcc/./gcc/xgcc -B/home/minslin/ET0001A/build-gcc/./gcc/ -B/home/minslin/linaro-gcc/arm-eabi/bin/ -B/home/minslin/linaro-gcc/arm-eabi/lib/ -isystem /home/minslin/linaro-gcc/arm-eabi/include -isystem /home/minslin/linaro-gcc/arm-eabi/sys-include    option to accept ISO C89
configure:3441: /home/minslin/ET0001A/build-gcc/./gcc/xgcc -B/home/minslin/ET0001A/build-gcc/./gcc/ -B/home/minslin/linaro-gcc/arm-eabi/bin/ -B/home/minslin/linaro-gcc/arm-eabi/lib/ -isystem /home/minslin/linaro-gcc/arm-eabi/include -isystem /home/minslin/linaro-gcc/arm-eabi/sys-include     -c -g -O2  conftest.c >&5
conftest.c:10:19: fatal error: stdio.h: No such file or directory
compilation terminated.
configure:3441: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
--------------
configure:3441: /home/minslin/ET0001A/build-gcc/./gcc/xgcc -B/home/minslin/ET0001A/build-gcc/./gcc/ -B/home/minslin/linaro-gcc/arm-eabi/bin/ -B/home/minslin/linaro-gcc/arm-eabi/lib/ -isystem /home/minslin/linaro-gcc/arm-eabi/include -isystem /home/minslin/linaro-gcc/arm-eabi/sys-include    -qlanglvl=extc89 -c -g -O2  conftest.c >&5
xgcc: unrecognized option '-qlanglvl=extc89'
conftest.c:10:19: fatal error: stdio.h: No such file or directory
compilation terminated.
configure:3441: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
--------------
configure:3441: /home/minslin/ET0001A/build-gcc/./gcc/xgcc -B/home/minslin/ET0001A/build-gcc/./gcc/ -B/home/minslin/linaro-gcc/arm-eabi/bin/ -B/home/minslin/linaro-gcc/arm-eabi/lib/ -isystem /home/minslin/linaro-gcc/arm-eabi/include -isystem /home/minslin/linaro-gcc/arm-eabi/sys-include    -qlanglvl=ansi -c -g -O2  conftest.c >&5
xgcc: unrecognized option '-qlanglvl=ansi'
conftest.c:10:19: fatal error: stdio.h: No such file or directory
compilation terminated.
configure:3441: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
| #define PACKAGE_VERSION "1.0"
| #define PACKAGE_STRING "GNU C Runtime Library 1.0"
| #define PACKAGE_BUGREPORT ""
--------------
configure:3441: /home/minslin/ET0001A/build-gcc/./gcc/xgcc -B/home/minslin/ET0001A/build-gcc/./gcc/ -B/home/minslin/linaro-gcc/arm-eabi/bin/ -B/home/minslin/linaro-gcc/arm-eabi/lib/ -isystem /home/minslin/linaro-gcc/arm-eabi/include -isystem /home/minslin/linaro-gcc/arm-eabi/sys-include    -std -c -g -O2  conftest.c >&5
cc1: error: unrecognized command line option "-std"
configure:3441: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
--------------
configure:3441: /home/minslin/ET0001A/build-gcc/./gcc/xgcc -B/home/minslin/ET0001A/build-gcc/./gcc/ -B/home/minslin/linaro-gcc/arm-eabi/bin/ -B/home/minslin/linaro-gcc/arm-eabi/lib/ -isystem /home/minslin/linaro-gcc/arm-eabi/include -isystem /home/minslin/linaro-gcc/arm-eabi/sys-include    -Ae -c -g -O2  conftest.c >&5
<command-line>:0:1: error: missing '(' after predicate
conftest.c:10:19: fatal error: stdio.h: No such file or directory
compilation terminated.
configure:3441: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
--------------
configure:3524: /home/minslin/ET0001A/build-gcc/./gcc/xgcc -B/home/minslin/ET0001A/build-gcc/./gcc/ -B/home/minslin/linaro-gcc/arm-eabi/bin/ -B/home/minslin/linaro-gcc/arm-eabi/lib/ -isystem /home/minslin/linaro-gcc/arm-eabi/include -isystem /home/minslin/linaro-gcc/arm-eabi/sys-include    -E  conftest.c
conftest.c:9:28: fatal error: ac_nonexistent.h: No such file or directory
compilation terminated.
configure:3524: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
--------------








From:        Andrew Stubbs <andrew.stubbs@linaro.org>
To:        mins.lin@globalunichip.com
Cc:        linaro-toolchain@lists.linaro.org
Date:        2011/06/22 20:42
Subject:        Re: GCC cross compilation help: [cannot compute suffix of object files]

---

You need to see config.log for more details. There'll be more than one
config.log, but probably only one will have this error message. Grep for it.

Once you have the relevant log snippet, we might be able to help you
decipher it.

Andrew

On 22/06/11 10:23, mins.lin@globalunichip.com wrote:
> Hello,
> I tried to build the gcc-linaro cross compiler tool on the x86_64
> ubuntu-10.04 machine.
> The build and host machine is the x86_64 ubuntu-10.04, the target is
> arm-eabi.
> But failed and got the following error messages:
> -----
> checking host system type... arm-unknown-eabi
> checking for arm-eabi-ar... arm-eabi-ar
> checking for arm-eabi-lipo... arm-eabi-lipo
> checking for arm-eabi-nm... /home/minslin/ET0001A/build-gcc/./gcc/nm
> checking for arm-eabi-ranlib... arm-eabi-ranlib
> checking for arm-eabi-strip... arm-eabi-strip
> checking whether ln -s works... yes
> checking for arm-eabi-gcc... /home/minslin/ET0001A/build-gcc/./gcc/xgcc
> -B/home/minslin/ET0001A/build-gcc/./gcc/
> -B/home/minslin/linaro-gcc/arm-eabi/bin/
> -B/home/minslin/linaro-gcc/arm-eabi/lib/ -isystem
> /home/minslin/linaro-gcc/arm-eabi/include -isystem
> /home/minslin/linaro-gcc/arm-eabi/sys-include
> checking for suffix of object files... configure: error: in
> `/home/minslin/ET0001A/build-gcc/arm-eabi/libgcc':
> configure: error: cannot compute suffix of object files: cannot compile
> See `config.log' for more details.
> make[1]: *** [configure-target-libgcc] Error 1
> make[1]: Leaving directory `/home/minslin/ET0001A/build-gcc'
> make: *** [all] Error 2
> -----
>
> The configure options I used were:
> -----
> ../gcc-linaro-4.5-2011.06-0/configure --target=arm-eabi
> --enable-languages=c,c++ --enable-shared
> --prefix=/home/minslin/linaro-gcc --with-gmp=/home/minslin/gmp
> --with-mpfr=/home/minslin/mpfr --with-mpc=/home/minslin/mpc
> -----
>
> I downloaded and built the GMP, MPFR and MPC packages. The versions I
> used are:
> gmp-5.0.2
> mpfr-3.0.1
> mpc-0.8.2
>
> Please help me solving this problem.
> Thanks.
>
> Best regards,
> ------------------------------------------------------------
> Min-Shong Lin (林敏雄)
> Engineering Division
> Global UniChip Corp. (創意電子)
> EMAIL : mins.lin@globalunichip.com
> TEL : +886-3-5646600 ext. 6937
>
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