--- oldssl-workaround/CMakeLists.txt.orig	2018-09-07 13:02:18 UTC
+++ oldssl-workaround/CMakeLists.txt
@@ -6,4 +6,5 @@ else()
         set(COMPAT_SRCS hostcheck.h openssl_hostname_validation.h)
 endif()
 ADD_LIBRARY(osslcompat OBJECT ${COMPAT_SRCS})
+set_target_properties(osslcompat PROPERTIES LINKER_LANGUAGE C)
 SET_TARGET_PROPERTIES(osslcompat PROPERTIES COMPILE_FLAGS "${ACNG_COMPFLAGS}")