curl-config(1) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | SEE ALSO | COLOPHON

curl-config(1)             curl-config manual             curl-config(1)

NAME         top

       curl-config - Get information about a libcurl installation

SYNOPSIS         top

       curl-config [options]

DESCRIPTION         top

       curl-config displays information about the curl and libcurl
       installation.

OPTIONS         top

       --ca   Displays the built-in path to the CA cert bundle this
              libcurl uses.

       --cc   Displays the compiler used to build libcurl.

       --cflags
              Set of compiler options (CFLAGS) to use when compiling
              files that use libcurl. Currently that is only the include
              path to the curl include files.

       --checkfor [version]
              Specify the oldest possible libcurl version string you
              want, and this script will return 0 if the current
              installation is new enough or it returns 1 and outputs a
              text saying that the current version is not new enough.
              (Added in 7.15.4)

       --configure
              Displays the arguments given to configure when building
              curl.

       --feature
              Lists what particular main features the installed libcurl
              was built with. At the time of writing, this list may
              include SSL, KRB4 or IPv6. Do not assume any particular
              order. The keywords will be separated by newlines. There
              may be none, one, or several keywords in the list.

       --help Displays the available options.

       --libs Shows the complete set of libs and other linker options
              you will need in order to link your application with
              libcurl.

       --prefix
              This is the prefix used when libcurl was installed.
              Libcurl is then installed in $prefix/lib and its header
              files are installed in $prefix/include and so on. The
              prefix is set with "configure --prefix".

       --protocols
              Lists what particular protocols the installed libcurl was
              built to support. At the time of writing, this list may
              include HTTP, HTTPS, FTP, FTPS, FILE, TELNET, LDAP, DICT.
              Do not assume any particular order. The protocols will be
              listed using uppercase and are separated by newlines.
              There may be none, one, or several protocols in the list.
              (Added in 7.13.0)

       --ssl-backends
              Lists the SSL backends that were enabled when libcurl was
              built. It might be no, one or several names. If more than
              one name, they will appear comma-separated. (Added in
              7.58.0)

       --static-libs
              Shows the complete set of libs and other linker options
              you will need in order to link your application with
              libcurl statically. (Added in 7.17.1)

       --version
              Outputs version information about the installed libcurl.

       --vernum
              Outputs version information about the installed libcurl,
              in numerical mode.  This outputs the version number, in
              hexadecimal, with 8 bits for each part: major, minor, and
              patch. So that libcurl 7.7.4 would appear as 070704 and
              libcurl 12.13.14 would appear as 0c0d0e... Note that the
              initial zero might be omitted. (This option was broken in
              the 7.15.0 release.)

EXAMPLES         top

       What linker options do I need when I link with libcurl?

         $ curl-config --libs

       What compiler options do I need when I compile using libcurl
       functions?

         $ curl-config --cflags

       How do I know if libcurl was built with SSL support?

         $ curl-config --feature | grep SSL

       What's the installed libcurl version?

         $ curl-config --version

       How do I build a single file with a one-line command?

         $ `curl-config --cc --cflags` -o example example.c `curl-config
       --libs`

SEE ALSO         top

       curl(1)

COLOPHON         top

       This page is part of the curl (Command line tool and library for
       transferring data with URLs) project.  Information about the
       project can be found at ⟨https://curl.haxx.se/⟩.  If you have a
       bug report for this manual page, see
       ⟨https://curl.haxx.se/docs/bugs.html⟩.  This page was obtained
       from the project's upstream Git repository
       ⟨https://github.com/curl/curl.git⟩ on 2021-08-27.  (At that time,
       the date of the most recent commit that was found in the
       repository was 2021-08-26.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

Curl 7.17.1                    25 Oct 2007                curl-config(1)