curl-config - Get information about a libcurl installation
curl-config displays information about the curl and libcurl
installation.
- --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 and many more. 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.)
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`