X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=CMakeLists.txt;h=531532627d1d20d1fdaea79c0e19b98946e6ff27;hb=5ceb82d4e4b49f919caf156fa644360b6c66622a;hp=785e37e7d4e7a1b90deda12eec884746c113de72;hpb=dbc4c71ef5cefe695955f7b43925d2a12016c28b;p=lyx.git

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 785e37e7d4..531532627d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -68,8 +68,15 @@ if(LYX_XMINGW)
 endif()
 
 if(NOT help AND NOT HELP)
-	# 'project' triggers the searching for a compiler
-	project(${LYX_PROJECT})
+  # 'project' triggers the searching for a compiler
+  project(${LYX_PROJECT})
+  if (CMAKE_COMPILER_IS_GNUCXX)
+    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.0")
+      message(STATUS "Gnu CXX compiler version = ${CMAKE_CXX_COMPILER_VERSION}")
+      message(STATUS "is too old, should be >= 4.0")
+      message(FATAL_ERROR "Exiting")
+    endif()
+  endif()
 endif()
 
 if(UNIX)