cmake: detect Cygwin which needs extensions to build

2019-02-04 20:03:46 +01:00
parent 67265e0706
commit f89253434f
1 changed files with 3 additions and 1 deletions
@@ -8,7 +8,9 @@ if (CMAKE_VERSION VERSION_LESS "3.1")
 else()
  set(CMAKE_CXX_STANDARD 11)
  set(CMAKE_CXX_STANDARD_REQUIRED ON)
-  set(CMAKE_CXX_EXTENSIONS OFF)
+  if(NOT CYGWIN)
+    set(CMAKE_CXX_EXTENSIONS OFF)
+  endif()
 endif()

 if (POLICY CMP0048)