I am trying to build the gcc compiler (gcc-4.6.3) on my Ubuntu 12.04 LTS system (which also happens to have 4.6.3 installed as the compiler). I've tried two different approaches to downloading and building the gcc compiler. Both approaches fail, in different ways, that involve _muldi3.o. =A0I will discuss my most recent failing attempt below. Following instructions I found at: http://www.rad.upenn.edu/sbia/software/gondola/install/gcc.html www.rad.upenn.edu/sbia/software/gondola/install/gcc.html, I issued the commands: cd sudo apt-get build-dep gcc-4.6< MIRROR=ftp://ftp.mirrorservice.org/sites/sourceware.org";> rservice.org/sites/sourceware.org wget ${MIRROR}/pub/gcc/releases/gcc-4.6.3/gcc-4.6.3.tar.bz2 tar -xjvf gcc-4.6.3.tar.bz2 mkdir gcc-4.6.3-build cd gcc-4.6.3-build ../gcc-4.6.3/configure --prefix=/opt/gcc-4.6.3 (this appeared to execute successfully) make The tail of the output from running; is as follows: make[3]: Leaving directory `/home/bill/gcc-4.6.3-build/gcc' mkdir -p -- i686-pc-linux-gnu/libgcc Checking multilib configuration for libgcc... Configuring stage 1 in i686-pc-linux-gnu/libgcc configure: creating cache ./config.cache checking for --enable-version-specific-runtime-libs... no checking for a BSD-compatible install... /usr/bin/install -c checking for gawk... gawk checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking for i686-pc-linux-gnu-ar... ar checking for i686-pc-linux-gnu-lipo... lipo checking for i686-pc-linux-gnu-nm... /home/bill/gcc-4.6.3-build/./gcc/nm checking for i686-pc-linux-gnu-ranlib... ranlib checking for i686-pc-linux-gnu-strip... strip checking whether ln -s works... yes checking for i686-pc-linux-gnu-gcc... /home/bill/gcc-4.6.3-build/./gcc/xgcc -B/home/bill/gcc-4.6.3-build/./gcc/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/bin/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/lib/ -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/include -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/sys-include checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether /home/bill/gcc-4.6.3-build/./gcc/xgcc -B/home/bill/gcc-4.6.3-build/./gcc/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/bin/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/lib/ -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/include -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/sys-include accepts -g... yes checking for /home/bill/gcc-4.6.3-build/./gcc/xgcc -B/home/bill/gcc-4.6.3-build/./gcc/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/bin/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/lib/ -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/include -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/sys-include option to accept ISO C89... unsupported checking how to run the C preprocessor... /lib/cpp checking whether decimal floating point is supported... yes checking whether fixed-point is supported... no checking whether assembler supports CFI directives... yes checking for __attribute__((visibility("hidden")))... yes checking whether the target assembler supports thread-local storage... yes checking whether the thread-local storage support is from emutls... no configure: updating cache ./config.cache configure: creating ./config.status config.status: creating Makefile config.status: executing default commands Adding multilib support to Makefile in ../../../gcc-4.6.3/libgcc multidirs= with_multisubdir= make[3]: Entering directory `/home/bill/gcc-4.6.3-build/i686-pc-linux-gnu/libgcc' # If this is the top-level multilib, build all the other # multilibs. make[4]: Entering directory `/home/bill/gcc-4.6.3-build/i686-pc-linux-gnu/libgcc' if [ -z "" ]; then \ true; \ else \ rootpre=`${PWDCMD-pwd}`/; export rootpre; \ srcrootpre=`cd ../../../gcc-4.6.3/libgcc; ${PWDCMD-pwd}`/; export srcrootpre; \ lib=`echo "${rootpre}" | sed -e 's,^.*/\([^/][^/]*\)/$,\1,'`; \ compiler="/home/bill/gcc-4.6.3-build/./gcc/xgcc -B/home/bill/gcc-4.6.3-build/./gcc/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/bin/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/lib/ -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/include -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/sys-include "; \ for i in `${compiler} --print-multi-lib 2>/dev/null`; do \ dir=`echo $i | sed -e 's/;.*$//'`; \ if [ "${dir}" = "." ]; then \ true; \ else \ if [ -d ../${dir}/${lib} ]; then \ flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \ if (cd ../${dir}/${lib}; make "AR=ar" "AR_FLAGS=rc" "CC=/home/bill/gcc-4.6.3-build/./gcc/xgcc -B/home/bill/gcc-4.6.3-build/./gcc/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/bin/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/lib/ -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/include -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/sys-include " "CFLAGS=-g -O2" "DESTDIR=" "EXTRA_OFILES=" "HDEFINES=" "INSTALL=/usr/bin/install -c" "INSTALL_DATA=/usr/bin/install -c -m 644" "INSTALL_PROGRAM=/usr/bin/install -c" "LDFLAGS=" "LOADLIBES=" "RANLIB=ranlib" "SHELL=/bin/bash" "prefix=/opt/gcc-4.6.3" "exec_prefix=/opt/gcc-4.6.3" "libdir=/opt/gcc-4.6.3/lib" "libsubdir=/opt/gcc-4.6.3/lib/gcc/i686-pc-linux-gnu/4.6.3" "tooldir=/opt/gcc-4.6.3/i686-pc-linux-gnu" \ CFLAGS="-g -O2 ${flags}" \ CCASFLAGS=" ${flags}" \ FCFLAGS=" ${flags}" \ FFLAGS=" ${flags}" \ ADAFLAGS=" ${flags}" \ prefix="/opt/gcc-4.6.3" \ exec_prefix="/opt/gcc-4.6.3" \ GCJFLAGS=" ${flags}" \ GOCFLAGS="-O2 -g ${flags}" \ CXXFLAGS="-g -O2 -D_GNU_SOURCE ${flags}" \ LIBCFLAGS="-g -O2 ${flags}" \ LIBCXXFLAGS="-g -O2 -D_GNU_SOURCE -fno-implicit-templates ${flags}" \ LDFLAGS=" ${flags}" \ MULTIFLAGS="${flags}" \ DESTDIR="" \ INSTALL="/usr/bin/install -c" \ INSTALL_DATA="/usr/bin/install -c -m 644" \ INSTALL_PROGRAM="/usr/bin/install -c" \ INSTALL_SCRIPT="/usr/bin/install -c" \ all); then \ true; \ else \ exit 1; \ fi; \ else true; \ fi; \ fi; \ done; \ fi make[4]: Leaving directory `/home/bill/gcc-4.6.3-build/i686-pc-linux-gnu/libgcc' /home/bill/gcc-4.6.3-build/./gcc/xgcc -B/home/bill/gcc-4.6.3-build/./gcc/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/bin/ -B/opt/gcc-4.6.3/i686-pc-linux-gnu/lib/ -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/include -isystem /opt/gcc-4.6.3/i686-pc-linux-gnu/sys-include -g -O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -fno-stack-protector -I. -I. -I../.././gcc -I../../../gcc-4.6.3/libgcc -I../../../gcc-4.6.3/libgcc/. -I../../../gcc-4.6.3/libgcc/../gcc -I../../../gcc-4.6.3/libgcc/../include -I../../../gcc-4.6.3/libgcc/config/libbid -DENABLE_DECIMAL_BID_FORMAT -DHAVE_CC_TLS -DUSE_TLS -o _muldi3.o -MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c ../../../gcc-4.6.3/libgcc/../gcc/libgcc2.c \ -fvisibility=hidden -DHIDE_EXPORTS In file included from /usr/include/features.h:389:0, from /usr/include/stdio.h:28, from ../../../gcc-4.6.3/libgcc/../gcc/tsystem.h:87, from ../../../gcc-4.6.3/libgcc/../gcc/libgcc2.c:29: /usr/include/gnu/stubs.h:7:27: fatal error: gnu/stubs-32.h: No such file or directory compilation terminated. make[3]: *** [_muldi3.o] Error 1 make[3]: Leaving directory `/home/bill/gcc-4.6.3-build/i686-pc-linux-gnu/libgcc' make[2]: *** [all-stage1-target-libgcc] Error 2 make[2]: Leaving directory `/home/bill/gcc-4.6.3-build' make[1]: *** [stage1-bubble] Error 2 make[1]: Leaving directory `/home/bill/gcc-4.6.3-build' make: *** [all] Error 2 bill@ubuntu:~/gcc-4.6.3-build$ Can anyone help me? Thanks, Bill Harris
