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#ifndef GIT_CURL_COMPAT_H
#define GIT_CURL_COMPAT_H
#include <curl/curl.h>
/**
* This header centralizes the declaration of our libcurl dependencies
* to make it easy to discover the oldest versions we support, and to
* inform decisions about removing support for older libcurl in the
* future.
*
* The oldest supported version of curl is documented in the "INSTALL"
* document.
*
* The source of truth for what versions have which symbols is
* https://github.com/curl/curl/blob/master/docs/libcurl/symbols-in-versions;
* the release dates are taken from curl.git (at
* https://github.com/curl/curl/).
*
* For each X symbol we need from curl we define our own
* GIT_CURL_HAVE_X. If multiple similar symbols with the same prefix
* were defined in the same version we pick one and check for that name.
*
* We may also define a missing CURL_* symbol to its known value, if
* doing so is sufficient to add support for it to older versions that
* don't have it.
*
* Keep any symbols in date order of when their support was
* introduced, oldest first, in the official version of cURL library.
*/
/**
* CURL_SOCKOPT_OK was added in 7.21.5, released in April 2011.
*/
#if LIBCURL_VERSION_NUM < 0x071505
#define CURL_SOCKOPT_OK 0
#endif
/**
* CURLOPT_TCP_KEEPALIVE was added in 7.25.0, released in March 2012.
*/
#if LIBCURL_VERSION_NUM >= 0x071900
#define GITCURL_HAVE_CURLOPT_TCP_KEEPALIVE 1
#endif
/**
* CURLOPT_LOGIN_OPTIONS was added in 7.34.0, released in December
* 2013.
*
* If we start requiring 7.34.0 we might also be able to remove the
* code conditional on USE_CURL_FOR_IMAP_SEND in imap-send.c, see
* 1e16b255b95 (git-imap-send: use libcurl for implementation,
* 2014-11-09) and the check it added for "072200" in the Makefile.
*/
#if LIBCURL_VERSION_NUM >= 0x072200
#define GIT_CURL_HAVE_CURLOPT_LOGIN_OPTIONS 1
#endif
/**
* CURL_SSLVERSION_TLSv1_[012] was added in 7.34.0, released in
* December 2013.
*/
#if LIBCURL_VERSION_NUM >= 0x072200
#define GIT_CURL_HAVE_CURL_SSLVERSION_TLSv1_0
#endif
/**
* CURLOPT_PINNEDPUBLICKEY was added in 7.39.0, released in November
* 2014. CURLE_SSL_PINNEDPUBKEYNOTMATCH was added in that same version.
*/
#if LIBCURL_VERSION_NUM >= 0x072c00
#define GIT_CURL_HAVE_CURLOPT_PINNEDPUBLICKEY 1
#define GIT_CURL_HAVE_CURLE_SSL_PINNEDPUBKEYNOTMATCH 1
#endif
/**
* CURL_HTTP_VERSION_2 was added in 7.43.0, released in June 2015.
*
* The CURL_HTTP_VERSION_2 alias (but not CURL_HTTP_VERSION_2_0) has
* always been a macro, not an enum field (checked on curl version
* 7.78.0)
*/
#if LIBCURL_VERSION_NUM >= 0x072b00
#define GIT_CURL_HAVE_CURL_HTTP_VERSION_2 1
#endif
/**
* CURLSSLOPT_NO_REVOKE was added in 7.44.0, released in August 2015.
*
* The CURLSSLOPT_NO_REVOKE is, has always been a macro, not an enum
* field (checked on curl version 7.78.0)
*/
#if LIBCURL_VERSION_NUM >= 0x072c00
#define GIT_CURL_HAVE_CURLSSLOPT_NO_REVOKE 1
#endif
/**
* CURLOPT_PROXY_CAINFO was added in 7.52.0, released in August 2017.
*/
#if LIBCURL_VERSION_NUM >= 0x073400
#define GIT_CURL_HAVE_CURLOPT_PROXY_CAINFO 1
#endif
/**
* CURLOPT_PROXY_{KEYPASSWD,SSLCERT,SSLKEY} was added in 7.52.0,
* released in August 2017.
*/
#if LIBCURL_VERSION_NUM >= 0x073400
#define GIT_CURL_HAVE_CURLOPT_PROXY_KEYPASSWD 1
#endif
/**
* CURL_SSLVERSION_TLSv1_3 was added in 7.53.0, released in February
* 2017.
*/
#if LIBCURL_VERSION_NUM >= 0x073400
#define GIT_CURL_HAVE_CURL_SSLVERSION_TLSv1_3 1
#endif
/**
* CURLSSLSET_{NO_BACKENDS,OK,TOO_LATE,UNKNOWN_BACKEND} were added in
* 7.56.0, released in September 2017.
*/
#if LIBCURL_VERSION_NUM >= 0x073800
#define GIT_CURL_HAVE_CURLSSLSET_NO_BACKENDS
#endif
/**
* Versions before curl 7.66.0 (September 2019) required manually setting the
* transfer-encoding for a streaming POST; after that this is handled
* automatically.
*/
#if LIBCURL_VERSION_NUM < 0x074200
#define GIT_CURL_NEED_TRANSFER_ENCODING_HEADER
#endif
/**
* CURLOPT_PROTOCOLS_STR and CURLOPT_REDIR_PROTOCOLS_STR were added in 7.85.0,
* released in August 2022.
*/
#if LIBCURL_VERSION_NUM >= 0x075500
#define GIT_CURL_HAVE_CURLOPT_PROTOCOLS_STR 1
#endif
#endif
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