1 files changed, 0 insertions, 21 deletions
diff --git a/build/m4/ax_c_lto.m4 b/build/m4/ax_c_lto.m4
deleted file mode 100644
index 7e6bc0119..000000000
--- a/build/m4/ax_c_lto.m4
+++ /dev/null
@@ -1,21 +0,0 @@
-# AC_C_LTO
-# -------------
-# Define HAVE_LTO if -flto works.
-AN_IDENTIFIER([lto], [AC_C_LTO])
-AC_DEFUN([AC_C_LTO],
-[AC_CACHE_CHECK([if -flto builds executables], ac_cv_c_lto,
-[AC_RUN_IFELSE(
-   [AC_LANG_SOURCE(
-      [[#include <stdio.h>
-        int main(int argc, char **argv) {
-          return 0;
-        }
-      ]])],
-   [ac_cv_c_lto=yes],
-   [ac_cv_c_lto=no],
-   [ac_cv_c_lto=${ac_cv_c_lto_cross_compile}])])
-if test "${ac_cv_c_lto}" = "yes"; then
-  AC_DEFINE([HAVE_LTO], 1,
-           [Define to 1 if -flto works.])
-fi
-])# AC_C_LTO