FIX: Always define CPPHTTPLIB_OPENSSL_SUPPORT

Author: threecgreen

CHANGELOG.md

@@ -21,6 +21,10 @@
 - Deprecated `FixPx` in favor of `pretty::Px` which has consistent naming with the API
   and the Python and Rust client libraries
 
+### Bug fixes
+- Ensure `CPPHTTPLIB_OPENSSL_SUPPORT` is defined at all locations where `cpp-httplib`
+  is included
+
 ## 0.37.1 - 2025-06-03
 
 ### Bug fixes

include/databento/exceptions.hpp

@@ -1,5 +1,8 @@
 #pragma once
 
+#ifndef CPPHTTPLIB_OPENSSL_SUPPORT
+#define CPPHTTPLIB_OPENSSL_SUPPORT
+#endif
 #include <httplib.h>          // Error
 #include <nlohmann/json.hpp>  // json, parse_error
 

src/historical.cpp

@@ -1,5 +1,8 @@
 #include "databento/historical.hpp"
 
+#ifndef CPPHTTPLIB_OPENSSL_SUPPORT
+#define CPPHTTPLIB_OPENSSL_SUPPORT
+#endif
 #include <httplib.h>
 #include <nlohmann/json.hpp>