%general-entities; ]> Your host system should have the following software with the minimum versions indicated. This should not be an issue for most modern Linux distributions. Also note that many distributions will place software headers into separate packages, often in the form of <package-name>-devel or <package-name>-dev. Be sure to install those if your distribution provides them. Earlier versions of the listed software packages may work, but have not been tested. Bash-3.2 (/bin/sh should be a symbolic or hard link to bash) Binutils-2.13.1 (Versions greater than &binutils-version; are not recommended as they have not been tested) Bc-1.07.0 Bison-2.7 (/usr/bin/yacc should be a link to bison or small script that executes bison) Coreutils-6.9 Diffutils-2.8.1 Findutils-4.2.31 Gawk-4.0.1 (/usr/bin/awk should be a link to gawk) GCC-4.8 including the C++ compiler, g++ (Versions greater than &gcc-version; are not recommended as they have not been tested). C and C++ standard libraries (with headers) must also be present so the C++ compiler can build hosted programs Grep-2.5.1a Gzip-1.3.12 M4-1.4.10 Make-4.0 Patch-2.5.4 Perl-5.8.8 Python-3.4 Sed-4.1.5 Tar-1.22 Texinfo-4.7 Xz-5.0.0 Note that the symlinks mentioned above are required to build an LFS system using the instructions contained within this book. Symlinks that point to other software (such as dash, mawk, etc.) may work, but are not tested or supported by the LFS development team, and may require either deviation from the instructions or additional patches to some packages. To see whether your host system has all the appropriate versions, and the ability to compile programs, run the following: cat > version-check.sh << "EOF" #!/bin/bash # Simple script to list version numbers of critical development tools export LC_ALL=C bash --version | head -n1 | cut -d" " -f2-4 MYSH=$(readlink -f /bin/sh) echo "/bin/sh -> $MYSH" echo $MYSH | grep -q bash || echo "ERROR: /bin/sh does not point to bash" unset MYSH bc --version | head -n1 echo -n "Binutils: "; ld --version | head -n1 | cut -d" " -f3- bison --version | head -n1 if [ -h /usr/bin/yacc ]; then echo "/usr/bin/yacc -> `readlink -f /usr/bin/yacc`"; elif [ -x /usr/bin/yacc ]; then echo yacc is `/usr/bin/yacc --version | head -n1` else echo "yacc not found" fi echo -n "Coreutils: "; chown --version | head -n1 | cut -d")" -f2 diff --version | head -n1 find --version | head -n1 gawk --version | head -n1 if [ -h /usr/bin/awk ]; then echo "/usr/bin/awk -> `readlink -f /usr/bin/awk`"; elif [ -x /usr/bin/awk ]; then echo awk is `/usr/bin/awk --version | head -n1` else echo "awk not found" fi gcc --version | head -n1 g++ --version | head -n1 grep --version | head -n1 gzip --version | head -n1 cat /proc/version m4 --version | head -n1 make --version | head -n1 patch --version | head -n1 echo Perl `perl -V:version` python3 --version sed --version | head -n1 tar --version | head -n1 makeinfo --version | head -n1 # texinfo version xz --version | head -n1 echo 'int main(){}' > dummy.c && g++ -o dummy dummy.c if [ -x dummy ] then echo "g++ compilation OK"; else echo "g++ compilation failed"; fi rm -f dummy.c dummy EOF bash version-check.sh