Hi, Can any one please help in resolving the following issue.. I am compiling microblaze cross compiler which is present in GCC-4.6 release. Following is the error log: --------------------------------------------------------------------------------------------------------------------------------- configure:3020: /proj/epdsw1/nagaraju/mb_gnu_4.4/build/microblaze/lin/bld_gcc_release/build/./gcc/xgcc -B/proj/epdsw1/nagaraju/mb_gnu_4.4/build/microblaze/lin/bld_gcc_release/build/./gcc/ -B/proj/epdsw1/nagaraju/mb_gnu_4.4/gnu/microblaze/lin/microblaze-xilinx-elf/bin/ -B/proj/epdsw1/nagaraju/mb_gnu_4.4/gnu/microblaze/lin/microblaze-xilinx-elf/lib/ -isystem /proj/epdsw1/nagaraju/mb_gnu_4.4/gnu/microblaze/lin/microblaze-xilinx-elf/include -isystem /proj/epdsw1/nagaraju/mb_gnu_4.4/gnu/microblaze/lin/microblaze-xilinx-elf/sys-include -o conftest -g -O2 conftest.c >&5 /proj/epdsw1/nagaraju/mb_gnu_4.4/build/microblaze/lin/bld_gcc_release/build/./gcc/as: line 83: exec: -o: invalid option exec: usage: exec [-cl] [-a name] file [redirection ...] configure:3023: $? = 1 configure:3211: checking for suffix of object files configure:3233: /proj/epdsw1/nagaraju/mb_gnu_4.4/build/microblaze/lin/bld_gcc_release/build/./gcc/xgcc -B/proj/epdsw1/nagaraju/mb_gnu_4.4/build/microblaze/lin/bld_gcc_release/build/./gcc/ -B/proj/epdsw1/nagaraju/mb_gnu_4.4/gnu/microblaze/lin/microblaze-xilinx-elf/bin/ -B/proj/epdsw1/nagaraju/mb_gnu_4.4/gnu/microblaze/lin/microblaze-xilinx-elf/lib/ -isystem /proj/epdsw1/nagaraju/mb_gnu_4.4/gnu/microblaze/lin/microblaze-xilinx-elf/include -isystem /proj/epdsw1/nagaraju/mb_gnu_4.4/gnu/microblaze/lin/microblaze-xilinx-elf/sys-include -c -g -O2 conftest.c >&5 /proj/epdsw1/nagaraju/mb_gnu_4.4/build/microblaze/lin/bld_gcc_release/build/./gcc/as: line 83: exec: -o: invalid option exec: usage: exec [-cl] [-a name] file [redirection ...] configure:3237: $? = 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 "" | #define PACKAGE_URL "http://www.gnu.org/software/libgcc/" | /* end confdefs.h. */ | | int | main () | { | | ; | return 0; | } configure:3251: error: in `/proj/epdsw1/nagaraju/mb_gnu_4.4/build/microblaze/lin/bld_gcc_release/build/microblaze-xilinx-elf/libgcc': configure:3254: error: cannot compute suffix of object files: cannot compile ------------------------------------------------------------------------------------------------------------------------ Please help me out in fixing this issue. Thanks in advance Nagaraju