The PCRE package contains Perl Compatible Regular Expression libraries. These are useful for implementing regular expression pattern matching using the same syntax and semantics as Perl 5.
This package is known to build and work properly using an LFS-8.3 platform.
Download (HTTP): https://ftp.pcre.org/pub/pcre/pcre-8.42.tar.bz2
Download (FTP): ftp://ftp.pcre.org/pub/pcre/pcre-8.42.tar.bz2
Download MD5 sum: 085b6aa253e0f91cae70b3cdbe8c1ac2
Download size: 1.5 MB
Estimated disk space required: 19 MB (with tests)
Estimated build time: 0.3 SBU (with tests)
User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/pcre
Install PCRE by running the following commands:
./configure --prefix=/usr \ --docdir=/usr/share/doc/pcre-8.42 \ --enable-unicode-properties \ --enable-pcre16 \ --enable-pcre32 \ --enable-pcregrep-libz \ --enable-pcregrep-libbz2 \ --enable-pcretest-libreadline \ --disable-static && make
To test the results, issue: make check.
Now, as the root
user:
make install && mv -v /usr/lib/libpcre.so.* /lib && ln -sfv ../../lib/$(readlink /usr/lib/libpcre.so) /usr/lib/libpcre.so
--enable-unicode-properties
: This
switch enables Unicode properties support and includes the code for
handling UTF-8/16/32 character strings in the library. You need
this switch if you are going to build GLib-2.56.1 with the
--with-pcre=system
switch.
--enable-pcre16
: This
switch enables 16 bit character support.
--enable-pcre32
: This
switch enables 32 bit character support.
--enable-pcregrep-libz
:
This switch adds support to pcregrep to read .gz
compressed files.
--enable-pcregrep-libbz2
:
This switch adds support to pcregrep to read .bz2
compressed files.
--enable-pcretest-libreadline
: This
switch adds line editing and history features to pcretest program.
--disable-static
: This
switch prevents installation of static versions of the libraries.
mv -v /usr/lib/libpcre.so.* /lib: Moves the PCRE library on the root filesystem so that it is available in case grep gets reinstalled with PCRE support.
--enable-jit
: this option enables
Just-in-time compiling, which can greatly speed up pattern
matching.
Last updated on 2018-08-15 20:14:45 -0700