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Diffstat (limited to 'chapter05')
| -rw-r--r-- | chapter05/grep-inst.xml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/chapter05/grep-inst.xml b/chapter05/grep-inst.xml index 6051ffd2e..8db7e3e42 100644 --- a/chapter05/grep-inst.xml +++ b/chapter05/grep-inst.xml @@ -8,6 +8,17 @@ <para><screen><userinput>./configure --prefix=/tools \ --disable-perl-regexp --with-included-regex</userinput></screen></para> +<para>The meaning of the configure switches:</para> + +<itemizedlist> +<listitem><para><userinput>--disable-perl-regexp</userinput>: This makes sure +that grep does not get linked against a PCRE library that may be present on +the host, but would not be available once we enter the chroot environment.</para></listitem> +<listitem><para><userinput>--with-included-regex</userinput>: This ensures that +grep uses it's internal regular expression code. Without it, it will use +the code from glibc, which is known to be slightly buggy.</para></listitem> +</itemizedlist> + <para>Compile the programs:</para> <para><screen><userinput>make </userinput></screen></para> |