Beyond Linux® From Scratch - Version 2012-01-16

Chapter 16. Networking Libraries

cURL-7.22.0

Introduction to cURL

The cURL package contains curl and its support library libcurl. This is useful for transferring files with URL syntax to any of the following protocols: FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS and FILE. This ability to both download and upload files can be incorporated into other programs to support functions like streaming media.

This package is known to build and work properly using an LFS-7.0 platform.

Package Information

cURL Dependencies

Optional

OpenSSL-1.0.0e or GnuTLS-3.0.7, OpenLDAP-2.4.23, libidn-1.22, MIT Kerberos V5-1.6 or Heimdal-1.4, libssh2 (for secure transfers), krb4, SPNEGO, and c-ares

Optional for Running the Test Suite

Stunnel-4.46 (for the HTTPS and FTPS tests)

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/curl

Installation of cURL

Install cURL by running the following commands: 

./configure --prefix=/usr &&
make

To test the results, issue: make check. Note that if you have Stunnel and TCP Wrapper installed and you wish to perform the HTTPS tests, you'll need to have an unrestrictive /etc/hosts.deny file.

Now, as the root user: 

make install &&
find docs -name "Makefile*" -o -name "*.1" -o -name "*.3" | xargs rm &&
install -v -d -m755 /usr/share/doc/curl-7.22.0 &&
cp -v -R docs/*     /usr/share/doc/curl-7.22.0

Command Explanations

--with-gssapi: This parameter adds Kerberos 5 support to libcurl.

--with-libssh2: This parameter adds SSH2 protocol support to libcurl.

--without-ssl --with-gnutls: To build with GnuTLS support instead of OpenSSL for SSL/TLS.

find docs -name "Makefile*" -o -name "*.1" -o -name "*.3" | xargs rm: This command removes Makefiles and man files from the documentation directory that would otherwise be installed by the commands that follow.

Contents

Installed Programs: curl and curl-config
Installed Library: libcurl.{so,a}
Installed Directories: /usr/include/curl, /usr/share/curl and /usr/share/doc/curl-7.22.0

Short Descriptions

curl

is a command line tool for transferring files with URL syntax.

curl-config

prints information about the last compile, like libraries linked to and prefix setting.

libcurl.{so,a}

provides the API functions required by curl and other programs.

Last updated on 2011-10-31 19:38:44 +0000