1 files changed, 3 insertions, 0 deletions

diff --git a/Depends.cmake b/Depends.cmake
index c379fc6d..fa1e8655 100644
--- a/Depends.cmake
+++ b/Depends.cmake
@@ -29,6 +29,9 @@ else ()
     set (TFDN_ENABLE_WEBREQUEST OFF CACHE BOOL "")
     add_subdirectory (lib/the_Foundation)
     add_library (the_Foundation::the_Foundation ALIAS the_Foundation)
+        if (NOT OPENSSL_FOUND)
+                message (FATAL_ERROR "OpenSSL is required for TLS. Please check if pkg-config can find openssl.")
+        endif ()
 endif ()
 find_package (PkgConfig REQUIRED)
 pkg_check_modules (SDL2 REQUIRED sdl2)