-----Original Message----- From: Tim Prince [mailto:n8tm@xxxxxxx] Sent: Friday, February 10, 2012 8:57 AM To: Prashant Batra (prbatra) Cc: tprince@xxxxxxxxxxxx; gcc-help@xxxxxxxxxxx Subject: Re: Help required when building gcc-4.1.2 for i686 environment On 2/9/2012 10:19 PM, Prashant Batra (prbatra) wrote: > > > -----Original Message----- > From: gcc-help-owner@xxxxxxxxxxx [mailto:gcc-help-owner@xxxxxxxxxxx] On > Behalf Of Tim Prince > Sent: Friday, February 10, 2012 8:43 AM > To: gcc-help@xxxxxxxxxxx > Subject: Re: Help required when building gcc-4.1.2 for i686 environment > > On 2/9/2012 4:17 PM, Prashant Batra (prbatra) wrote: >> Hello, >> >> I am trying to build a gcc/g++ tool-chain for i486 architechture on an >> x86_64 machine. >> I downloaded gcc-4.1.2 and configured it with host as x86_64 and > target >> as i486 after installing the pre-requistes i.e gmp, mrpf, and mpc >> libraries . >> >> ../gcc-4.1.2/configure --with-gmp=/auto/local//prbatra/gcc-install/ >> --with-mpfr=/auto/local//prbatra/gcc-install/ >> --prefix=/auto/local//prbatra/gcc-install/ --host=x86_64-gnu-linux >> --target=i486-gnu-linux --enable-languages=c,c++,objc >> >> I also installed binutils with the same host and target for > asssembler, >> loaded etc >> >> /auto/local//prbatra/objdir/./gcc/xgcc >> -B/auto/local//prbatra/objdir/./gcc/ >> -B/auto/local//prbatra/gcc-install//i486-gnu-linux/bin/ >> -B/auto/local//prbatra/gcc-install//i486-gnu-linux/lib/ -isystem >> /auto/local//prbatra/gcc-install//i486-gnu-linux/include -isystem >> /auto/local//prbatra/gcc-install//i486-gnu-linux/sys-include -O2 -O2 > -g >> -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings >> -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition >> -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 >> -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../gcc-4.1.2/gcc >> -I../../gcc-4.1.2/gcc/. -I../../gcc-4.1.2/gcc/../include >> -I../../gcc-4.1.2/gcc/../libcpp/include >> -I/auto/local//prbatra/gcc-install//include >> -I/auto/local//prbatra/gcc-install//include -fexceptions >> -fvisibility=hidden -DHIDE_EXPORTS -c ../../gcc-4.1.2/gcc/unwind-dw2.c >> -o libgcc/./unwind-dw2.o >> In file included from ./gthr-default.h:1, >> from ../../gcc-4.1.2/gcc/gthr.h:114, >> from ../../gcc-4.1.2/gcc/unwind-dw2.c:42: >> ../../gcc-4.1.2/gcc/gthr-posix.h:43:21: error: pthread.h: No such file >> or directory >> ../../gcc-4.1.2/gcc/gthr-posix.h:44:20: error: unistd.h: No such file > or >> directory >> In file included from ./gthr-default.h:1, >> from ../../gcc-4.1.2/gcc/gthr.h:114, >> from ../../gcc-4.1.2/gcc/unwind-dw2.c:42: >> ../../gcc-4.1.2/gcc/gthr-posix.h:46: error: expected '=', ',', ';', >> 'asm' or '__attribute__' before '__gthread_key_t' >> ../../gcc-4.1.2/gcc/gthr-posix.h:47: error: expected '=', ',', ';', >> 'asm' or '__attribute__' before '__gthread_once_t' >> ../../gcc-4.1.2/gcc/gthr-posix.h:48: error: expected '=', ',', ';', >> 'asm' or '__attribute__' before '__gthread_mutex_t' >> ../../gcc-4.1.2/gcc/gthr-posix.h:49: error: expected '=', ',', ';', >> 'asm' or '__attribute__' before '__gthread_recursive_mutex_t' >> >> Can someone help me with what I am missing? >> > > Gcc 4.1 wasn't a particularly stable version, even if you could spell > the pre-requisites correctly, making your exercise appear somewhat > pointless. You would require a complete 32-bit development system, > including 32-bit libpthread, which apparently you neglected. > > [Prashant] Thanks Tim, So you are suggesting me to build it on a 32 bit > system or, using a different version of gcc other that 4.1.2 > Or, is it that I can install libptthread-32 bit and other required > libraries on 64 bit system and go ahead. > Not knowing the reason for your exercise, I'd decline to try to answer fully. While it can be difficult to install the full 32-bit development system components, doing so should be sufficient. [Prashant] The installation is required to create a tool chain for compiling something on a 64 bit host system for 32 bit system), without using the native tool-chain of the host machine. [Prashant] Now, I had put gmp, mpfr and mpc into the gcc tree, but I am wondering that can gcc take binutils also from the source, Or should I install it separately and tell gcc to use that. -- Tim Prince
