Merge pull request #1734 from MocquillonCedric/windows-cmake-pre3.9-support

Add support for msvc with cmake version pre 3.9 (fixes #4429)

AUTHORS.md

@@ -37,6 +37,7 @@ Programmers
     Britt Mathis (galdor557)
     Capostrophic
     cc9cii
+    Cédric Mocquillon
     Chris Boyce (slothlife)
     Chris Robinson (KittyCat)
     Cory F. Cohen (cfcohen)

CHANGELOG.md

@@ -5,6 +5,7 @@
     Bug #4293: Faction members are not aware of faction ownerships in barter
     Bug #4327: Missing animations during spell/weapon stance switching
     Bug #4426: RotateWorld behavior is incorrect
+    Bug #4429: [Windows] Error on build INSTALL.vcxproj project (debug) with cmake 3.7.2
     Bug #4433: Guard behaviour is incorrect with Alarm = 0
     Bug #4443: Goodbye option and dialogue choices are not mutually exclusive 
     Feature #4444: Per-group KF-animation files support

cmake/OpenMWMacros.cmake

@@ -172,7 +172,7 @@ macro (get_generator_is_multi_config VALUE)
 		if (CMAKE_VERSION VERSION_GREATER 3.9 OR CMAKE_VERSION VERSION_EQUAL 3.9)
 			get_cmake_property(${VALUE} GENERATOR_IS_MULTI_CONFIG)
 		else (CMAKE_VERSION VERSION_GREATER 3.9 OR CMAKE_VERSION VERSION_EQUAL 3.9)
-			list(LENGTH "${CMAKE_CONFIGURATION_TYPES}" ${VALUE})
+			list(LENGTH CMAKE_CONFIGURATION_TYPES ${VALUE})
 		endif (CMAKE_VERSION VERSION_GREATER 3.9 OR CMAKE_VERSION VERSION_EQUAL 3.9)
 	endif (DEFINED generator_is_multi_config_var)
 endmacro (get_generator_is_multi_config)