With older versions of OpenSSL any locking must be provided by locking callbacks in the application or intermediate libraries. The C++ client library automatically provides the locking callbacks. If your application already provides such callbacks, and you prefer to use them, set this option to false.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThe latest version available is 2.37.0-rc, which can be found linked as the first item in the list of versions.\u003c/p\u003e\n"],["\u003cp\u003eThis page provides documentation for the \u003ccode\u003eEnableCurlSslLockingOption\u003c/code\u003e feature across multiple versions, ranging from 2.11.0 to 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eEnableCurlSslLockingOption\u003c/code\u003e controls whether the C++ client library automatically provides locking callbacks for OpenSSL.\u003c/p\u003e\n"],["\u003cp\u003eDisabling the \u003ccode\u003eEnableCurlSslLockingOption\u003c/code\u003e is only useful for applications that are linking against OpenSSL 1.0.2 and already provide their own locking callbacks.\u003c/p\u003e\n"]]],[],null,[]]