CMake: Replace generator conditional expressions

OPENGL_LIBRARIES may contain multiple paths, separated by semicolons.
In CMake 3.22.1 this results in an improper list of libraries.

source/Irrlicht/CMakeLists.txt

@@ -318,22 +318,37 @@ set(link_libs
 	"${ZLIB_LIBRARY}"
 	"${JPEG_LIBRARY}"
 	"${PNG_LIBRARY}"
-	"$<$<BOOL:${USE_SDL2}>:${SDL2_LIBRARIES}>"
+	${SDL2_LIBRARIES}
 
-	"$<$<BOOL:${OPENGL_DIRECT_LINK}>:${OPENGL_LIBRARIES}>"
-	"$<$<BOOL:${OPENGLES_DIRECT_LINK}>:${OPENGLES_LIBRARY}>"
-	"$<$<BOOL:${OPENGLES2_DIRECT_LINK}>:${OPENGLES2_LIBRARIES}>"
+	${OPENGL_LIBRARIES}
+	${OPENGLES_LIBRARY}
+	${OPENGLES2_LIBRARIES}
 	${EGL_LIBRARY}
 
 	"$<$<PLATFORM_ID:Android>:-landroid -llog>"
 	${COCOA_LIB}
 	${IOKIT_LIB}
 	"$<$<PLATFORM_ID:Windows>:gdi32>"
 	"$<$<PLATFORM_ID:Windows>:winmm>"
-	"$<$<BOOL:${USE_X11}>:${X11_X11_LIB}>"
-	"$<$<BOOL:${USE_X11}>:${X11_Xi_LIB}>"
+	${X11_X11_LIB}
+	${X11_Xi_LIB}
 )
 
+# Workaround: the CMake generator's conditional expressions leave a stray tailing
+# `>` in case of semicolon-separated paths. Affects CMake 3.22.1 and possibly more.
+macro(APPEND_LIB condition variable)
+	if(${${condition}})
+		list(APPEND link_libs ${${variable}})
+	endif()
+endmacro()
+
+APPEND_LIB(USE_SDL2               SDL2_LIBRARIES)
+APPEND_LIB(OPENGL_DIRECT_LINK     OPENGL_LIBRARIES)
+APPEND_LIB(OPENGLES_DIRECT_LINK   OPENGLES_LIBRARY)
+APPEND_LIB(OPENGLES2_DIRECT_LINK  OPENGLES2_LIBRARIES)
+APPEND_LIB(USE_X11                X11_X11_LIB)
+APPEND_LIB(USE_X11                X11_Xi_LIB)
+
 # Source files
 
 set(IRRMESHLOADER