check_library_exists_concat("idn2" idn2_lookup_ul HAVE_LIBIDN2)
endif()
+if(WIN32)
+ option(USE_WIN32_IDN "Use WinIDN for IDN support" OFF)
+ if(USE_WIN32_IDN)
+ list(APPEND CURL_LIBS "Normaliz")
+ set(WANT_IDN_PROTOTYPES ON)
+ endif()
+endif()
+
# Check for symbol dlopen (same as HAVE_LIBDL)
check_library_exists("${CURL_LIBS}" dlopen "" HAVE_DLOPEN)
_add_if("brotli" HAVE_BROTLI)
_add_if("zstd" HAVE_ZSTD)
_add_if("AsynchDNS" USE_ARES OR USE_THREADS_POSIX OR USE_THREADS_WIN32)
-_add_if("IDN" HAVE_LIBIDN2)
+_add_if("IDN" HAVE_LIBIDN2 OR USE_WIN32_IDN)
_add_if("Largefile" (SIZEOF_CURL_OFF_T GREATER 4) AND
((SIZEOF_OFF_T GREATER 4) OR USE_WIN32_LARGE_FILES))
# TODO SSP1 (Schannel) check is missing
/* Define to 1 if you have the mach_absolute_time function. */
#cmakedefine HAVE_MACH_ABSOLUTE_TIME 1
+
+/* to enable Windows IDN */
+#cmakedefine USE_WIN32_IDN 1
+
+/* to make the compiler know the prototypes of Windows IDN APIs */
+#cmakedefine WANT_IDN_PROTOTYPES 1