From f44c4244b80871e9deb1d7e9103de28d0a6c202f Mon Sep 17 00:00:00 2001
From: Fabian Sauter <sauter.fabian@mailbox.org>
Date: Sat, 28 Sep 2024 05:34:39 +0100
Subject: [PATCH] Fixed missing SUPPORT_CURLOPT_SSL_CTX_FUNCTION handling

---
 cpr/util.cpp          | 2 ++
 include/cpr/session.h | 2 ++
 include/cpr/util.h    | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/cpr/util.cpp b/cpr/util.cpp
index dc02a339e..9a1ba44d7 100644
--- a/cpr/util.cpp
+++ b/cpr/util.cpp
@@ -156,9 +156,11 @@ int debugUserFunction(CURL* /*handle*/, curl_infotype type, char* data, size_t s
     return 0;
 }
 
+#if SUPPORT_CURLOPT_SSL_CTX_FUNCTION
 CURLcode sslCtxUserFunction(CURL* curl, void* sslctx, const ssl::SslCtxCallback* ctx) {
     return (*ctx)(curl, sslctx);
 }
+#endif
 
 /**
  * Creates a temporary CurlHolder object and uses it to escape the given string.
diff --git a/include/cpr/session.h b/include/cpr/session.h
index 24e3f8dea..ae9850b34 100644
--- a/include/cpr/session.h
+++ b/include/cpr/session.h
@@ -249,7 +249,9 @@ class Session : public std::enable_shared_from_this<Session> {
          * Ensures that the "Transfer-Encoding" is set to "chunked", if not overriden in header_.
          **/
         ReadCallback readcb_;
+        #if SUPPORT_CURLOPT_SSL_CTX_FUNCTION
         ssl::SslCtxCallback sslctxcb_;
+        #endif
         HeaderCallback headercb_;
         WriteCallback writecb_;
         ProgressCallback progresscb_;
diff --git a/include/cpr/util.h b/include/cpr/util.h
index 355482f73..5a867d29c 100644
--- a/include/cpr/util.h
+++ b/include/cpr/util.h
@@ -19,7 +19,9 @@ size_t headerUserFunction(char* ptr, size_t size, size_t nmemb, const HeaderCall
 size_t writeFunction(char* ptr, size_t size, size_t nmemb, std::string* data);
 size_t writeFileFunction(char* ptr, size_t size, size_t nmemb, std::ofstream* file);
 size_t writeUserFunction(char* ptr, size_t size, size_t nmemb, const WriteCallback* write);
+#if SUPPORT_CURLOPT_SSL_CTX_FUNCTION
 CURLcode sslCtxUserFunction(CURL* curl, void* sslctx, const ssl::SslCtxCallback* ctx);
+#endif
 
 template <typename T = ProgressCallback>
 int progressUserFunction(const T* progress, cpr_pf_arg_t dltotal, cpr_pf_arg_t dlnow, cpr_pf_arg_t ultotal, cpr_pf_arg_t ulnow) {