Polyfill fetchcontent_makeAvailable for cmake < 3.14
1 files changed, 26 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 694b3701..d5faa4a9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,6 +46,32 @@ option(USE_BUNDLED_TWEENY "Use the bundled version of tweeny."
list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
+if(${CMAKE_VERSION} VERSION_LESS "3.14.0")
+ message("Adding FetchContent_MakeAvailable")
+ # from cmakes sources
+ macro(FetchContent_MakeAvailable)
+
+ foreach(contentName IN ITEMS ${ARGV})
+ string(TOLOWER ${contentName} contentNameLower)
+ FetchContent_GetProperties(${contentName})
+ if(NOT ${contentNameLower}_POPULATED)
+ FetchContent_Populate(${contentName})
+
+ # Only try to call add_subdirectory() if the populated content
+ # can be treated that way. Protecting the call with the check
+ # allows this function to be used for projects that just want
+ # to ensure the content exists, such as to provide content at
+ # a known location.
+ if(EXISTS ${${contentNameLower}_SOURCE_DIR}/CMakeLists.txt)
+ add_subdirectory(${${contentNameLower}_SOURCE_DIR}
+ ${${contentNameLower}_BINARY_DIR})
+ endif()
+ endif()
+ endforeach()
+
+ endmacro()
+endif()
+
include(GNUInstallDirs)
# Include Qt basic functions
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