{ "mode": "man", "parameter": "curl-config", "section": "1", "url": "https://www.chedong.com/phpMan.php/man/curl-config/1/json", "generated": "2026-05-30T06:08:23Z", "synopsis": "", "sections": { "NAME": { "content": "curl-config - Get information about a libcurl installation\n", "subsections": [] }, "SYNOPSIS": { "content": "", "subsections": [ { "name": "curl-config [options]", "content": "" } ] }, "DESCRIPTION": { "content": "curl-config displays information about the curl and libcurl installation.\n", "subsections": [] }, "OPTIONS": { "content": "--ca Displays the built-in path to the CA cert bundle this libcurl uses.\n\n--cc Displays the compiler used to build libcurl.\n", "subsections": [ { "name": "--cflags", "content": "Set of compiler options (CFLAGS) to use when compiling files that use libcurl. Cur‐\nrently that is only the include path to the curl include files.\n", "long": "--cflags" }, { "name": "--checkfor [version]", "content": "Specify the oldest possible libcurl version string you want, and this script will re‐\nturn 0 if the current installation is new enough or it returns 1 and outputs a text\nsaying that the current version is not new enough. (Added in 7.15.4)\n", "long": "--checkfor", "arg": "[version]" }, { "name": "--configure", "content": "Displays the arguments given to configure when building curl.\n", "long": "--configure" }, { "name": "--feature", "content": "Lists what particular main features the installed libcurl was built with. At the time\nof writing, this list may include SSL, KRB4 or IPv6. Do not assume any particular or‐\nder. The keywords will be separated by newlines. There may be none, one, or several\nkeywords in the list.\n\n--help Displays the available options.\n\n--libs Shows the complete set of libs and other linker options you will need in order to link\nyour application with libcurl.\n", "long": "--feature" }, { "name": "--prefix", "content": "This is the prefix used when libcurl was installed. Libcurl is then installed in $pre‐\nfix/lib and its header files are installed in $prefix/include and so on. The prefix is\nset with \"configure --prefix\".\n", "long": "--prefix" }, { "name": "--protocols", "content": "Lists what particular protocols the installed libcurl was built to support. At the\ntime of writing, this list may include HTTP, HTTPS, FTP, FTPS, FILE, TELNET, LDAP,\nDICT. Do not assume any particular order. The protocols will be listed using uppercase\nand are separated by newlines. There may be none, one, or several protocols in the\nlist. (Added in 7.13.0)\n", "long": "--protocols" }, { "name": "--ssl-backends", "content": "Lists the SSL backends that were enabled when libcurl was built. It might be no, one\nor several names. If more than one name, they will appear comma-separated. (Added in\n7.58.0)\n", "long": "--ssl-backends" }, { "name": "--static-libs", "content": "Shows the complete set of libs and other linker options you will need in order to link\nyour application with libcurl statically. (Added in 7.17.1)\n", "long": "--static-libs" }, { "name": "--version", "content": "Outputs version information about the installed libcurl.\n", "long": "--version" }, { "name": "--vernum", "content": "Outputs version information about the installed libcurl, in numerical mode. This out‐\nputs the version number, in hexadecimal, with 8 bits for each part: major, minor, and\npatch. So that libcurl 7.7.4 would appear as 070704 and libcurl 12.13.14 would appear\nas 0c0d0e... Note that the initial zero might be omitted. (This option was broken in\nthe 7.15.0 release.)\n", "long": "--vernum" } ] }, "EXAMPLES": { "content": "What linker options do I need when I link with libcurl?\n\n$ curl-config --libs\n\nWhat compiler options do I need when I compile using libcurl functions?\n\n$ curl-config --cflags\n\nHow do I know if libcurl was built with SSL support?\n\n$ curl-config --feature | grep SSL\n\nWhat's the installed libcurl version?\n\n$ curl-config --version\n\nHow do I build a single file with a one-line command?\n\n$ `curl-config --cc --cflags` -o example example.c `curl-config --libs`\n", "subsections": [] }, "SEE ALSO": { "content": "curl(1)\n\n\n\nCurl 7.81.0 November 04, 2020 curl-config(1)", "subsections": [] } }, "summary": "curl-config - Get information about a libcurl installation", "flags": [ { "flag": "", "long": "--cflags", "arg": null, "description": "Set of compiler options (CFLAGS) to use when compiling files that use libcurl. Cur‐ rently that is only the include path to the curl include files." }, { "flag": "", "long": "--checkfor", "arg": null, "description": "Specify the oldest possible libcurl version string you want, and this script will re‐ turn 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)" }, { "flag": "", "long": "--configure", "arg": null, "description": "Displays the arguments given to configure when building curl." }, { "flag": "", "long": "--feature", "arg": null, "description": "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 or‐ der. 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." }, { "flag": "", "long": "--prefix", "arg": null, "description": "This is the prefix used when libcurl was installed. Libcurl is then installed in $pre‐ fix/lib and its header files are installed in $prefix/include and so on. The prefix is set with \"configure --prefix\"." }, { "flag": "", "long": "--protocols", "arg": null, "description": "Lists what particular protocols the installed libcurl was built to support. At the time of writing, this list may include HTTP, HTTPS, FTP, FTPS, FILE, TELNET, LDAP, DICT. Do not assume any particular order. The protocols will be listed using uppercase and are separated by newlines. There may be none, one, or several protocols in the list. (Added in 7.13.0)" }, { "flag": "", "long": "--ssl-backends", "arg": null, "description": "Lists the SSL backends that were enabled when libcurl was built. It might be no, one or several names. If more than one name, they will appear comma-separated. (Added in 7.58.0)" }, { "flag": "", "long": "--static-libs", "arg": null, "description": "Shows the complete set of libs and other linker options you will need in order to link your application with libcurl statically. (Added in 7.17.1)" }, { "flag": "", "long": "--version", "arg": null, "description": "Outputs version information about the installed libcurl." }, { "flag": "", "long": "--vernum", "arg": null, "description": "Outputs version information about the installed libcurl, in numerical mode. This out‐ puts the version number, in hexadecimal, with 8 bits for each part: major, minor, and patch. So that libcurl 7.7.4 would appear as 070704 and libcurl 12.13.14 would appear as 0c0d0e... Note that the initial zero might be omitted. (This option was broken in the 7.15.0 release.)" } ], "examples": [ "What linker options do I need when I link with libcurl?", "$ 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": [ { "name": "curl", "section": "1", "url": "https://www.chedong.com/phpMan.php/man/curl/1/json" } ] }