-----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. -- Tim Prince