Hello, I am trying to build GCC 4.5.2 for the AVR target. See my script: http://www.cl.cam.ac.uk/~osc22/files/install_avr_tools.sh I have some troubles when building, see below, maybe you can help me; thanks: ... make[3]: Nothing to be done for `all'. make[3]: Leaving directory `/local/scratch/osc22/temp/build-avr/gcc-4.5.2/buildavr/libiberty/testsuite' /bin/bash ../../libiberty/../mkinstalldirs /usr/local/avr/lib/`gcc -g -O2 -print-multi-os-directory` /usr/bin/install -c -m 644 ./libiberty.a /usr/local/avr/lib/`gcc -g -O2 -print-multi-os-directory`/./libiberty.an ( cd /usr/local/avr/lib/`gcc -g -O2 -print-multi-os-directory` ; chmod 644 ./libiberty.an ;ranlib ./libiberty.an ) mv -f /usr/local/avr/lib/`gcc -g -O2 -print-multi-os-directory`/./libiberty.an /usr/local/avr/lib/`gcc -g -O2 -print-multi-os-directory`/./libiberty.a if test -n ""; then \ case "" in \ /*) thd=;; \ *) thd=/usr/local/avr/include/;; \ esac; \ /bin/bash ../../libiberty/../mkinstalldirs ${thd}; \ for h in ../../libiberty/../include/ansidecl.h ../../libiberty/../include/demangle.h ../../libiberty/../include/dyn-string.h ../../libiberty/../include/fibheap.h ../../libiberty/../include/floatformat.h ../../libiberty/../include/hashtab.h ../../libiberty/../include/libiberty.h ../../libiberty/../include/objalloc.h ../../libiberty/../include/partition.h ../../libiberty/../include/safe-ctype.h ../../libiberty/../include/sort.h ../../libiberty/../include/splay-tree.h; do \ /usr/bin/install -c -m 644 $h ${thd}; \ done; \ fi make[3]: Entering directory `/local/scratch/osc22/temp/build-avr/gcc-4.5.2/buildavr/libiberty/testsuite' make[3]: Nothing to be done for `install'. make[3]: Leaving directory `/local/scratch/osc22/temp/build-avr/gcc-4.5.2/buildavr/libiberty/testsuite' make[2]: Leaving directory `/local/scratch/osc22/temp/build-avr/gcc-4.5.2/buildavr/libiberty' /bin/bash: line 3: cd: avr/libgcc: No such file or directory make[1]: *** [install-target-libgcc] Error 1 make[1]: Leaving directory `/local/scratch/osc22/temp/build-avr/gcc-4.5.2/buildavr' make: *** [install] Error 2 It seems the build cannot find the folder avr/libgcc, but why? When running, the libgcc error above shows: avr-gcc -mmcu=at90usb1287 -Wl,-Map=SCD.map SCD.o EMV.o halSCD.o scdIO.o utils.o terminal.o halSCD.S SCD.S -o SCD.elf /usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/bin/ld: cannot find -lgcc /usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/bin/ld: cannot find -lgcc collect2: ld returned 1 exit status Info about the avr-gcc: avr-gcc -v Using built-in specs. COLLECT_GCC=avr-gcc COLLECT_LTO_WRAPPER=/usr/local/avr/libexec/gcc/avr/4.5.2/lto-wrapper Target: avr Configured with: ../configure --target=avr --prefix=/usr/local/avr -v --program-prefix=avr- --with-gcc --with-gnu-ld --with-gnu-as --with-dwarf2 --disable-libssp --enable-languages=c,c++ --disable-werror --disable-nls Thread model: single gcc version 4.5.2 (GCC) And verbose output of running the command: avr-gcc -v -mmcu=at90usb1287 -Wl,-Map=SCD.map SCD.o EMV.o halSCD.o scdIO.o utils.o terminal.o halSCD.S SCD.S -o SCD.elf Using built-in specs. COLLECT_GCC=avr-gcc COLLECT_LTO_WRAPPER=/usr/local/avr/libexec/gcc/avr/4.5.2/lto-wrapper Target: avr Configured with: ../configure --target=avr --prefix=/usr/local/avr -v --program-prefix=avr- --with-gcc --with-gnu-ld --with-gnu-as --with-dwarf2 --disable-libssp --enable-languages=c,c++ --disable-werror --disable-nls Thread model: single gcc version 4.5.2 (GCC) COLLECT_GCC_OPTIONS='-v' '-mmcu=at90usb1287' '-o' 'SCD.elf' /usr/local/avr/libexec/gcc/avr/4.5.2/cc1 -E -lang-asm -quiet -v -imultilib avr51 halSCD.S -mmcu=at90usb1287 -fno-directives-only -o /tmp/ccPZdrIF.s ignoring nonexistent directory "/usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/sys-include" #include "..." search starts here: #include <...> search starts here: /usr/local/avr/lib/gcc/avr/4.5.2/include /usr/local/avr/lib/gcc/avr/4.5.2/include-fixed /usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/include End of search list. COLLECT_GCC_OPTIONS='-v' '-mmcu=at90usb1287' '-o' 'SCD.elf' /usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/bin/as -v -mmcu=at90usb1287 -o /tmp/ccAv4Kbo.o /tmp/ccPZdrIF.s GNU assembler version 2.21 (avr) using BFD version (GNU Binutils) 2.21 COLLECT_GCC_OPTIONS='-v' '-mmcu=at90usb1287' '-o' 'SCD.elf' /usr/local/avr/libexec/gcc/avr/4.5.2/cc1 -E -lang-asm -quiet -v -imultilib avr51 SCD.S -mmcu=at90usb1287 -fno-directives-only -o /tmp/ccPZdrIF.s ignoring nonexistent directory "/usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/sys-include" #include "..." search starts here: #include <...> search starts here: /usr/local/avr/lib/gcc/avr/4.5.2/include /usr/local/avr/lib/gcc/avr/4.5.2/include-fixed /usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/include End of search list. COLLECT_GCC_OPTIONS='-v' '-mmcu=at90usb1287' '-o' 'SCD.elf' /usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/bin/as -v -mmcu=at90usb1287 -o /tmp/ccswYC86.o /tmp/ccPZdrIF.s GNU assembler version 2.21 (avr) using BFD version (GNU Binutils) 2.21 COMPILER_PATH=/usr/local/avr/libexec/gcc/avr/4.5.2/:/usr/local/avr/libexec/gcc/avr/4.5.2/:/usr/local/avr/libexec/gcc/avr/:/usr/local/avr/lib/gcc/avr/4.5.2/:/usr/local/avr/lib/gcc/avr/:/usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/bin/ LIBRARY_PATH=/usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/lib/avr51/:/usr/local/avr/lib/gcc/avr/4.5.2/:/usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/lib/ COLLECT_GCC_OPTIONS='-v' '-mmcu=at90usb1287' '-o' 'SCD.elf' /usr/local/avr/libexec/gcc/avr/4.5.2/collect2 -m avr51 -Tdata 0x800100 -o SCD.elf /usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/lib/avr51/crtusb1286.o -L/usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/lib/avr51 -L/usr/local/avr/lib/gcc/avr/4.5.2 -L/usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/lib -Map=SCD.map SCD.o EMV.o halSCD.o scdIO.o utils.o terminal.o /tmp/ccAv4Kbo.o /tmp/ccswYC86.o -lgcc -lc -lgcc /usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/bin/ld: cannot find -lgcc /usr/local/avr/lib/gcc/avr/4.5.2/../../../../avr/bin/ld: cannot find -lgcc collect2: ld returned 1 exit status Thanks, Omar