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-rw-r--r--CMakeLists.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index edb1cec21..6f513c2bc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1239,7 +1239,9 @@ _add_if("SCP" USE_LIBSSH2)
_add_if("SFTP" USE_LIBSSH2)
_add_if("RTSP" NOT CURL_DISABLE_RTSP)
_add_if("RTMP" USE_LIBRTMP)
-list(SORT _items)
+if(_items)
+ list(SORT _items)
+endif()
string(REPLACE ";" " " SUPPORT_PROTOCOLS "${_items}")
message(STATUS "Enabled protocols: ${SUPPORT_PROTOCOLS}")