--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.)