Bump CMake Version to 3.16
The currently used CMake version is deprecated and should be bumped to a newer version. A good choice is probably 3.16, the version shipped with Ubuntu 20.04 LTS.
The change is trivial:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1fe58a8..cd9b2c5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
+CMAKE_MINIMUM_REQUIRED(VERSION 3.16)
SET(CMAKE_PROJECT_PATH ${CMAKE_PROJECT_PATH} "${CMAKE_SOURCE_DIR}/cmake")
SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/modules")
diff --git a/cmake/CMakeLists.txt.vendors b/cmake/CMakeLists.txt.vendors
index c75927d..a366a0f 100644
--- a/cmake/CMakeLists.txt.vendors
+++ b/cmake/CMakeLists.txt.vendors
@@ -13,6 +13,7 @@ ADD_LIBRARY(sass_vendor_xdrfile ${INTERNAL_LIBRARY_TYPE}
IF(STATIC)
SET_TARGET_PROPERTIES(sass_vendor_xdrfile PROPERTIES LINK_SEARCH_END_STATIC 1)
+SET_TARGET_PROPERTIES(sass_vendor_xdrfile PROPERTIES LINKER_LANGUAGE CXX)
ENDIF(STATIC)
TARGET_LINK_LIBRARIES (sass_vendor_xdrfile
@@ -23,4 +24,4 @@ TARGET_LINK_LIBRARIES (sass_vendor_xdrfile
#MESSAGE(STATUS ${XDRFILE_LIBRARIES})
#
#find_file(XDRFILE_FILE NAMES libxdrfile.la PATHS vendor/xdrfile-1.1.1/src NO_DEFAULT_PATH)
-#MESSAGE(STATUS ${XDRFILE_FILE})
\ No newline at end of file
+#MESSAGE(STATUS ${XDRFILE_FILE})
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