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-rw-r--r--third_party/glog/m4/using_operator.m415
1 files changed, 0 insertions, 15 deletions
diff --git a/third_party/glog/m4/using_operator.m4 b/third_party/glog/m4/using_operator.m4
deleted file mode 100644
index 95a9951eb3..0000000000
--- a/third_party/glog/m4/using_operator.m4
+++ /dev/null
@@ -1,15 +0,0 @@
-AC_DEFUN([AC_CXX_USING_OPERATOR],
-  [AC_CACHE_CHECK(
-      whether compiler supports using ::operator<<,
-      ac_cv_cxx_using_operator,
-      [AC_LANG_SAVE
-       AC_LANG_CPLUSPLUS
-       AC_TRY_COMPILE([#include <iostream>
-                       std::ostream& operator<<(std::ostream&, struct s);],
-                      [using ::operator<<; return 0;],
-                      ac_cv_cxx_using_operator=1,
-		      ac_cv_cxx_using_operator=0)
-      AC_LANG_RESTORE])
-  if test "$ac_cv_cxx_using_operator" = 1; then
-    AC_DEFINE(HAVE_USING_OPERATOR, 1, [define if the compiler supports using expression for operator])
-  fi])