fix issue for rocky 8 2023 where the openssl comes from the system

Signed-off-by: Cédrik Fuoco <[email protected]>

Author: cedrik-fuoco-adsk

cmake/dependencies/python3.cmake

@@ -279,7 +279,14 @@ ENDIF()
 SET(_requirements_install_command
     ${CMAKE_COMMAND} -E env
     ${_otio_debug_env}
-    "OPENSSL_DIR=${RV_DEPS_OPENSSL_INSTALL_DIR}"
+)
+
+# Only set OPENSSL_DIR if we built OpenSSL ourselves (not for Rocky Linux 8 CY2023 which uses system OpenSSL)
+IF(DEFINED RV_DEPS_OPENSSL_INSTALL_DIR)
+  LIST(APPEND _requirements_install_command "OPENSSL_DIR=${RV_DEPS_OPENSSL_INSTALL_DIR}")
+ENDIF()
+
+LIST(APPEND _requirements_install_command
     "CMAKE_ARGS=-DPYTHON_LIBRARY=${_python3_cmake_library} -DPYTHON_INCLUDE_DIR=${_include_dir} -DPYTHON_EXECUTABLE=${_python3_executable}"
     "${_python3_executable}" -m pip install --upgrade --no-cache-dir --force-reinstall --no-binary :all: -r "${_requirements_output_file}"
 )