CMake: require a GCC version according to INSTALL.md

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 63fdab521df4b9576bd4a59aa37c65dcaf625374..ae784f2ba0f821b2f5a0748a87cc69360ee8b6c2 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -246,8 +246,8 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     OUTPUT_VARIABLE _ICINGA2_COMPILER_VERSION
   )
 
-  if("${CMAKE_CXX_COMPILER_VERSION}" VERSION_LESS "4.6.0")
-    message(FATAL_ERROR "Your version of GCC (${CMAKE_CXX_COMPILER_VERSION}) is too old for building Icinga 2 (GCC >= 4.6.0 is required).")
+  if("${CMAKE_CXX_COMPILER_VERSION}" VERSION_LESS "4.7.0")
+    message(FATAL_ERROR "Your version of GCC (${CMAKE_CXX_COMPILER_VERSION}) is too old for building Icinga 2 (GCC >= 4.7.0 is required).")
   endif()
 endif()