Build system improvements.

Author: redcode

CMakeLists.txt

@@ -8,7 +8,7 @@
 # Released under the terms of the GNU Lesser General Public License v3.
 
 cmake_minimum_required(
-	# 3.14: install(TARGETS ARCHIVE [DESTINATION])
+	# 3.14: install(TARGETS ARCHIVE [DESTINATION <dir>])
 	VERSION 3.14...${CMAKE_VERSION})
 
 if(	CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR AND
@@ -28,9 +28,45 @@ project(Z80
 
 unset(_)
 
-execute_process(
-	COMMAND ${CMAKE_COMMAND} -E echo
-		"${PROJECT_NAME} v${PROJECT_VERSION}")
+if(	# 3.21: find_program([NO_CACHE])
+	NOT "${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" VERSION_LESS 3.21
+	AND CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR
+	AND CMAKE_COLOR_MAKEFILE
+	AND UNIX
+	AND (DEFINED ENV{TERM} AND NOT "$ENV{TERM}" MATCHES "dumb")
+	AND (NOT DEFINED ENV{NO_COLOR} OR     "$ENV{NO_COLOR}" STREQUAL "" )
+	AND (NOT DEFINED ENV{CLICOLOR} OR NOT "$ENV{CLICOLOR}" STREQUAL "0")
+)
+	find_program(_lolcat lolcat NO_CACHE)
+
+	if(_lolcat)
+		execute_process(
+			COMMAND echo
+				"\n"
+				"███████┐  █████┐   █████┐\n"
+				"└───███│ ██┌──██┐ ███┌─██┐\n"
+				"  ███┌─┘ └█████┌┘ ██┌┘ ██│\n"
+				"███┌─┘   ██┌──██┐ ██│  ██│\n"
+				"███████┐ └█████┌┘ └█████┌┘\n"
+				"└──────┘  └────┘   └────┘"
+			COMMAND ${_lolcat} -f
+			OUTPUT_VARIABLE _lolcat)
+
+		string(REGEX REPLACE "\n$" "" _lolcat "${_lolcat}")
+
+		execute_process(
+			COMMAND ${CMAKE_COMMAND} -E echo
+				"${_lolcat} v${PROJECT_VERSION}")
+	endif()
+endif()
+
+if(_lolcat)
+	unset(_lolcat)
+else()
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E echo
+			"${PROJECT_NAME} v${PROJECT_VERSION}")
+endif()
 
 include(GNUInstallDirs)