How to build the latest cURL from the source

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    Afrosky Team February 6, 2020 1:31 AM CET 0 likes

    Do you need the newest version of cURL for a particular requirement, then you need to build from the source.

    let me show you how you can easily do this

    [root@lab ~]# curl --version curl 7.29.0 (x86_64-redhat-linux-gnu) libcurl/7.29.0 NSS/3.44 zlib/1.2.7 libidn/1.28 libssh2/1.8.0 Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp scp sftp smtp smtps telnet tftp Features: AsynchDNS GSS-Negotiate IDN IPv6 Largefile NTLM NTLM_WB SSL libz unix-sockets [root@lab ~]#

    However, the latest cURL version (7.67) supports HTTP/3. So, I had only one option – build from the source. This is just one example; you may have some other requirement.

    The following example is for 7.67 (latest as I write). But the procedure remains the same for any other version.

    Prerequisite

    Let’s get the required dependencies installed.

    • Update the system. Though this is optional, I prefer doing so. I always have up-to-date installed packages.

    yum update -y

    • Installing the required packages
    yum install wget gcc openssl-devel -y wget https://curl.haxx.se/download/curl-7.67.0.tar.gz
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    • Extract the downloaded gz file
    gunzip -c curl-7.67.0.tar.gz | tar xvf -
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    It would create a new folder on the present working directory

     

    Building cURL

    Once you’ve downloaded and extracted the latest cURL, its time to build them.

    • Go inside the newly created folder after extraction
    cd curl-7.67.0
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    • Configure with SSL as below
    ./configure --with-ssl
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    • You will see output something like below.
    configure: Configured to build curl/libcurl: Host setup: x86_64-pc-linux-gnu Install prefix: /usr/local Compiler: gcc CFLAGS: -Werror-implicit-function-declaration -O2 -Wno-system-headers -pthread CPPFLAGS: LDFLAGS: LIBS: -lssl -lcrypto -lssl -lcrypto -lz curl version: 7.67.0 SSL: enabled (OpenSSL) SSH: no (--with-libssh2) zlib: enabled brotli: no (--with-brotli) GSS-API: no (--with-gssapi) TLS-SRP: no (--enable-tls-srp) resolver: POSIX threaded IPv6: enabled Unix sockets: enabled IDN: no (--with-{libidn2,winidn}) Build libcurl: Shared=yes, Static=yes Built-in manual: enabled --libcurl option: enabled (--disable-libcurl-option) Verbose errors: enabled (--disable-verbose) Code coverage: disabled SSPI: no (--enable-sspi) ca cert bundle: /etc/pki/tls/certs/ca-bundle.crt ca cert path: no ca fallback: no LDAP: no (--enable-ldap / --with-ldap-lib / --with-lber-lib) LDAPS: no (--enable-ldaps) RTSP: enabled RTMP: no (--with-librtmp) Metalink: no (--with-libmetalink) PSL: no (libpsl not found) Alt-svc: no (--enable-alt-svc) HTTP2: disabled (--with-nghttp2) HTTP3: disabled (--with-ngtcp2, --with-quiche) ESNI: no (--enable-esni) Protocols: DICT FILE FTP FTPS GOPHER HTTP HTTPS IMAP IMAPS POP3 POP3S RTSP SMB SMBS SMTP SMTPS TELNET TFTP Features: SSL IPv6 UnixSockets libz AsynchDNS NTLM NTLM_WB HTTPS-proxy
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    • Let’s install them
    make make install
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    It will take a few seconds to complete, and once done; you can verify the version to ensure it has installed successfully.

    Verification

    Use --version to see the version details.

    # curl --version curl 7.67.0 (x86_64-pc-linux-gnu) libcurl/7.67.0 OpenSSL/1.0.2k-fips zlib/1.2.7 Release-Date: 2019-11-06 Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp Features: AsynchDNS HTTPS-proxy IPv6 Largefile libz NTLM NTLM_WB SSL UnixSockets #
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    Conclusion

    This post was edited by Afrosky Team at February 6, 2020 1:33 AM CET