curl-config

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





NAME
       curl-config - Get information about a libcurl installation

SYNOPSIS
       curl-config [options]

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

OPTIONS
       --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
       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
       curl(1)



Curl 7.77.0                     November 4, 2020                  curl-config(1)