cmake : Fix bug in httplib.h for mingw (#1615)

Fix bug in httlib.h for mingw, please see https://github.com/yhirose/cpp-httplib/issues/1669

examples/server/CMakeLists.txt

@@ -4,3 +4,9 @@ add_executable(${TARGET} server.cpp httplib.h json.hpp)
 include(DefaultTargetOptions)
 
 target_link_libraries(${TARGET} PRIVATE common whisper ${CMAKE_THREAD_LIBS_INIT})
+
+# Check if the compiler is MinGW
+if(MINGW)
+    # Link the necessary libraries for SSL and Winsock
+    target_link_libraries(${TARGET} PRIVATE -lcrypt32 -lssl -lcrypto -lws2_32)
+endif()