Merge topic 'COMPILER_TARGET'

2d9ec1d Add compiler target compile options.
Merge topic 'export-COMPILE_OPTIONS-property'

77ff352 Generate INTERFACE_COMPILE_OPTIONS on export.
Merge topic 'version-compare-genex'

e605528 Add generator expressions for version comparision.
48bb48e De-duplicate version comparison code.
Merge topic 'FindFreetype-gtkmm'

a34839d FindFreetype: Detect Freetype installed by GtkMM installer for win
Merge topic 'dag-LINKER_LANGUAGE'

ff015ee Genex: Report error if a target file is needed to evaluate link libraries.
b58aff9 Genex: Extend EvaluatingLinkLibraries to also check the top target name.
b1c19ce Genex: Make LINK_LANGUAGE report an error when evaluating link libraries.
0e1cb07 Add missing return after error report.
Merge branch 'master' into next