          AM_CFLAGS="$AM_CFLAGS -Werror"
          AM_CXXFLAGS="$AM_CXXFLAGS -Werror"
  fi
-+AX_CHECK_COMPILE_FLAG([-Werror=format-truncation],[AM_CFLAGS="$AM_CFLAGS -Wno-error=format-truncation" AM_CXXFLAGS="$AM_CXXFLAGS -Wno-error=format-truncation"])
++AX_CHECK_COMPILE_FLAG([-Werror -Werror=format-truncation],[AM_CFLAGS="$AM_CFLAGS -Wno-error=format-truncation" AM_CXXFLAGS="$AM_CXXFLAGS -Wno-error=format-truncation"])
 +
  AC_SUBST([AM_CFLAGS])
  AC_SUBST([AM_CXXFLAGS])

+AS_VAR_POPDEF([CACHEVAR])dnl
+])dnl AX_CHECK_COMPILE_FLAGS
-- 
2.12.2


 create mode 100644 m4/ax_check_compile_flag.m4

diff --git a/configure.ac b/configure.ac
index 8854542..edb8cfb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,6 @@ AC_INIT([collectd],[m4_esyscmd(./version-gen.sh)])
