The PCRE2 package contains a new generation of the Perl Compatible Regular Expression libraries. These are useful for implementing regular expression pattern matching using the same syntax and semantics as Perl.
Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.
Download (HTTP): https://github.com/PCRE2Project/pcre2/releases/download/pcre2-10.42/pcre2-10.42.tar.bz2
Download MD5 sum: a8e9ab2935d428a4807461f183034abe
Download size: 1.7 MB
Estimated disk space required: 24 MB (with tests)
Estimated build time: 0.4 SBU (with tests)
Install PCRE2 by running the following commands:
./configure --prefix=/usr \ --docdir=/usr/share/doc/pcre2-10.42 \ --enable-unicode \ --enable-jit \ --enable-pcre2-16 \ --enable-pcre2-32 \ --enable-pcre2grep-libz \ --enable-pcre2grep-libbz2 \ --enable-pcre2test-libreadline \ --disable-static && make
To test the results, issue: make check.
Now, as the root
user:
make install
--enable-unicode
: This switch enables Unicode support and includes the functions for handling UTF-8/16/32 character strings in the library.
--enable-pcre2-16
: This switch enables 16 bit character support.
--enable-pcre2-32
: This switch enables 32 bit character support.
--enable-pcre2grep-libz
: This switch adds support for reading .gz compressed files to pcre2grep.
--enable-pcre2grep-libbz2
: This switch adds support for reading .bz2 compressed files to pcre2grep.
--enable-pcre2test-libreadline
: This switch adds line editing and history features to the pcre2test program.
--disable-static
: This switch prevents installation of static versions of the libraries.
--enable-jit
: this option enables Just-in-time compiling, which can greatly speed up pattern matching.