Add cpcfg target

Makefile

@@ -8,6 +8,11 @@ prefix?="/usr/local"
 
 all: igrec
 
+cpcfg:
+	mkdir -p build/tmp
+	cd build/tmp && cmake ../../configs -DCMAKE_OVERWRITE_CONFIGS=true
+	rm -r build/tmp
+
 cmake:
 	mkdir -p build/release
 	cd build/release && cmake ../.. -DCMAKE_BUILD_TYPE="${build_type}" -DCMAKE_INSTALL_PREFIX=${prefix} -Wno-dev

configs/CMakeLists.txt

@@ -1,13 +1,24 @@
 project(configs)
 cmake_minimum_required(VERSION 2.8)
 
-file(GLOB config_templates "*/*.template")
-foreach(config_template ${config_templates})
-  # Remove extention
-  STRING(REGEX REPLACE "\\.template$" "" config ${config_template})
-  if(NOT EXISTS "${config}")
-    configure_file("${config_template}"
-                    "${config}"
-                    @ONLY)
-  endif()
-endforeach()
+function(cpcfg overwrite)
+    if (${overwrite})
+        MESSAGE("Configs will be overwritten")
+    endif()
+    file(GLOB config_templates "*/*.template")
+    foreach(config_template ${config_templates})
+    # Remove extention
+    STRING(REGEX REPLACE "\\.template$" "" config ${config_template})
+    if(NOT EXISTS "${config}" OR ${overwrite})
+        configure_file("${config_template}"
+                        "${config}"
+                        @ONLY)
+    endif()
+    endforeach()
+endfunction(cpcfg)
+
+if (NOT CMAKE_OVERWRITE_CONFIGS)
+    SET(CMAKE_OVERWRITE_CONFIGS "FALSE")
+endif()
+
+cpcfg(${CMAKE_OVERWRITE_CONFIGS})