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8 <sect1 id="pre-hostreqs">
9 <?dbhtml filename="hostreqs.html"?>
11 <title>Host System Requirements</title>
13 <para>Your host system should have the following software with the
14 minimum versions indicated. This should not be an issue for most
15 modern Linux distributions. Also note that many distributions will
16 place software headers into separate packages, often in the form of
17 <quote><package-name>-devel</quote> or
18 <quote><package-name>-dev</quote>. Be sure to install those if
19 your distribution provides them.</para>
21 <para>Earlier versions of the listed software packages may work, but has not
24 <itemizedlist spacing="compact">
27 <para><emphasis role="strong">Bash-3.2</emphasis> (/bin/sh
28 should be a symbolic or hard link to bash)</para>
32 <para><emphasis role="strong">Binutils-2.17</emphasis> (Versions
33 greater than &binutils-version; are not recommended as they have
34 not been tested)</para>
38 <para><emphasis role="strong">Bison-2.3</emphasis> (/usr/bin/yacc
39 should be a link to bison or small script that executes bison)</para>
43 <para><emphasis role="strong">Bzip2-1.0.4</emphasis></para>
47 <para><emphasis role="strong">Coreutils-6.9</emphasis></para>
51 <para><emphasis role="strong">Diffutils-2.8.1</emphasis></para>
55 <para><emphasis role="strong">Findutils-4.2.31</emphasis></para>
59 <para><emphasis role="strong">Gawk-3.1.5</emphasis> (/usr/bin/awk
60 should be a link to gawk)</para>
64 <para><emphasis role="strong">Gcc-4.1.2</emphasis> (Versions
65 greater than &gcc-version; are not recommended as they have not
70 <para><emphasis role="strong">Glibc-2.5.1</emphasis> (Versions
71 greater than &glibc-version; are not recommended as they have
72 not been tested)</para>
76 <para><emphasis role="strong">Grep-2.5.1a</emphasis></para>
80 <para><emphasis role="strong">Gzip-1.3.12</emphasis></para>
84 <para><emphasis role="strong">Linux Kernel-2.6.25</emphasis>
85 (having been compiled with GCC-4.1.2 or greater)</para>
87 <para>The reason for the kernel version requirement is that we specify
88 that version when building <application>glibc</application> in Chapter 6
89 at the recommendation of the developers. It is also required by
92 <para>If the host kernel is either earlier than 2.6.25, or it was not
93 compiled using a GCC-4.1.2 (or later) compiler, you will need to replace
94 the kernel with one adhering to the specifications. There are two ways
95 you can go about this. First, see if your Linux vendor provides a 2.6.25
96 or later kernel package. If so, you may wish to install it. If your
97 vendor doesn't offer an acceptable kernel package, or you would prefer not to
98 install it, you can compile a kernel yourself. Instructions for
99 compiling the kernel and configuring the boot loader (assuming the host
100 uses GRUB) are located in <xref linkend="chapter-bootable"/>.</para>
105 <para><emphasis role="strong">M4-1.4.10</emphasis></para>
109 <para><emphasis role="strong">Make-3.81</emphasis></para>
113 <para><emphasis role="strong">Patch-2.5.4</emphasis></para>
117 <para><emphasis role="strong">Perl-5.8.8</emphasis></para>
121 <para><emphasis role="strong">Sed-4.1.5</emphasis></para>
125 <para><emphasis role="strong">Tar-1.18</emphasis></para>
128 <!-- Needed by the apparently broken Binutils-2.18 -->
130 <para><emphasis role="strong">Texinfo-4.9</emphasis></para>
135 <para>Note that the symlinks mentioned above are required to build an LFS
136 system using the instructions contained within this book. Symlinks that
137 point to other software (such as dash, mawk, etc.) may work, but are not
138 tested or supported by the LFS development team, and may require either
139 deviation from the instructions or additional patches to some
142 <para id="version-check">To see whether your host system has all the appropriate versions, and
143 the ability to compile programs, run the following:</para>
145 <!--<anchor xreflabel="Version Check Script" id="version-check"/>-->
146 <screen role="nodump"><userinput>cat > version-check.sh << "EOF"
150 # Simple script to list version numbers of critical development tools
152 bash --version | head -n1 | cut -d" " -f2-4
153 echo "/bin/sh -> `readlink -f /bin/sh`"
154 echo -n "Binutils: "; ld --version | head -n1 | cut -d" " -f3-
155 bison --version | head -n1
156 if [ -e /usr/bin/yacc ];
157 then echo "/usr/bin/yacc -> `readlink -f /usr/bin/yacc`";
158 else echo "yacc not found"; fi
159 bzip2 --version 2>&1 < /dev/null | head -n1 | cut -d" " -f1,6-
160 echo -n "Coreutils: "; chown --version | head -n1 | cut -d")" -f2
161 diff --version | head -n1
162 find --version | head -n1
163 gawk --version | head -n1
164 if [ -e /usr/bin/awk ];
165 then echo "/usr/bin/awk -> `readlink -f /usr/bin/awk`";
166 else echo "awk not found"; fi
167 gcc --version | head -n1
168 /lib/libc.so.6 | head -n1 | cut -d"," -f1
169 grep --version | head -n1
170 gzip --version | head -n1
172 m4 --version | head -n1
173 make --version | head -n1
174 patch --version | head -n1
175 echo Perl `perl -V:version`
176 sed --version | head -n1
177 tar --version | head -n1
178 echo "Texinfo: `makeinfo --version | head -n1`"
179 echo 'main(){}' > dummy.c && gcc -o dummy dummy.c
180 if [ -x dummy ]; then echo "Compilation OK";
181 else echo "Compilation failed"; fi
186 bash version-check.sh</userinput></screen>