Minor fix.

1feca43e · Davis King · 930e85c1 · 1feca43e
Commit 1feca43e authored Oct 11, 2015 by Davis King
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dlib/use_cpp_11.cmake dlib/use_cpp_11.cmake +1 -1

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--- a/dlib/use_cpp_11.cmake
+++ b/dlib/use_cpp_11.cmake
@@ -19,7 +19,7 @@ include(${dlib_path}/add_global_compiler_switch.cmake)
 # verions of CMake are not so convenient.
 if (CMAKE_VERSION VERSION_LESS "3.1")
   if(CMAKE_COMPILER_IS_GNUCXX)
-      execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
+      execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
      if (GCC_VERSION VERSION_GREATER 4.7 OR GCC_VERSION VERSION_EQUAL 4.7)
         message(STATUS "C++11 activated.")
         add_global_compiler_switch("-std=gnu++11")