Index: ext/curl/interface.c
===================================================================
--- ext/curl/interface.c	(revision 305849)
+++ ext/curl/interface.c	(working copy)
@@ -1252,7 +1252,6 @@
 /* }}} */
 #endif
 
-#if LIBCURL_VERSION_NUM < 0x071101
 /* {{{ curl_free_string
  */
 static void curl_free_string(void **string)
@@ -1260,7 +1259,6 @@
 	efree(*string);
 }
 /* }}} */
-#endif
 
 /* {{{ curl_free_post
  */
@@ -1337,9 +1335,7 @@
 
 	memset(&(*ch)->err, 0, sizeof((*ch)->err));
 
-#if LIBCURL_VERSION_NUM < 0x071101
 	zend_llist_init(&(*ch)->to_free.str,   sizeof(char *),            (llist_dtor_func_t) curl_free_string, 0);
-#endif
 	zend_llist_init(&(*ch)->to_free.slist, sizeof(struct curl_slist), (llist_dtor_func_t) curl_free_slist,  0);
 	zend_llist_init(&(*ch)->to_free.post,  sizeof(struct HttpPost),   (llist_dtor_func_t) curl_free_post,   0);
 }
@@ -1556,11 +1552,10 @@
 	curl_easy_setopt(dupch->cp, CURLOPT_INFILE,            (void *) dupch);
 	curl_easy_setopt(dupch->cp, CURLOPT_WRITEHEADER,       (void *) dupch);
 
-#if LIBCURL_VERSION_NUM < 0x071101
 	zend_llist_copy(&dupch->to_free.str, &ch->to_free.str);
 	/* Don't try to free copied strings, they're free'd when the original handle is destroyed */
 	dupch->to_free.str.dtor = NULL;
-#endif
+
 	zend_llist_copy(&dupch->to_free.slist, &ch->to_free.slist);
 	zend_llist_copy(&dupch->to_free.post, &ch->to_free.post);
 
@@ -1742,14 +1737,22 @@
 					return 1;
 				}
 			} else {
+				if (option == CURLOPT_PRIVATE) {
+					char *copystr;
+#if LIBCURL_VERSION_NUM < 0x071100
+string_copy:
+#endif
+					copystr = estrndup(Z_STRVAL_PP(zvalue), Z_STRLEN_PP(zvalue));
+					error = curl_easy_setopt(ch->cp, option, copystr);
+					zend_llist_add_element(&ch->to_free.str, &copystr);
+				} else {
 #if LIBCURL_VERSION_NUM >= 0x071100
-				/* Strings passed to libcurl as ’char *’ arguments, are copied by the library... NOTE: before 7.17.0 strings were not copied. */
-				error = curl_easy_setopt(ch->cp, option, Z_STRVAL_PP(zvalue));
-#else
-				copystr = estrndup(Z_STRVAL_PP(zvalue), Z_STRLEN_PP(zvalue));
-				error = curl_easy_setopt(ch->cp, option, copystr);
-				zend_llist_add_element(&ch->to_free.str, &copystr);
+					/* Strings passed to libcurl as ’char *’ arguments, are copied by the library... NOTE: before 7.17.0 strings were not copied. */
+					error = curl_easy_setopt(ch->cp, option, Z_STRVAL_PP(zvalue));
+#else				
+					goto string_copy;			
 #endif
+				}
 			}
 			break;
 		}
@@ -2456,9 +2459,7 @@
 	}
 
 	curl_easy_cleanup(ch->cp);
-#if LIBCURL_VERSION_NUM < 0x071101
 	zend_llist_clean(&ch->to_free.str);
-#endif
 
 	/* cURL destructors should be invoked only by last curl handle */
 	if (Z_REFCOUNT_P(ch->clone) <= 1) {
Index: ext/curl/tests/bug52202.phpt
===================================================================
--- ext/curl/tests/bug52202.phpt	(revision 0)
+++ ext/curl/tests/bug52202.phpt	(revision 0)
@@ -0,0 +1,16 @@
+--TEST--
+Bug #52202 (CURLOPT_PRIVATE gets clobbered)
+--SKIPIF--
+<?php
+if (!extension_loaded('curl')) exit("skip curl extension not loaded");
+?>
+--FILE--
+<?php
+$curl = curl_init("http://www.google.com");
+curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
+curl_setopt($curl, CURLOPT_PRIVATE, "123");
+curl_exec($curl);
+
+var_dump(curl_getinfo($curl, CURLINFO_PRIVATE));
+--EXPECT--
+string(3) "123"