config.mak.uname: define NEEDS_LIBRT under Linux, for now

My Debian wheezy LTS system is still on glibc 2.13; and LTS distros may use older glibc, still, so lets not unnecessarily break things out-of-the-box. We seem to assume Linux is using glibc in our Makefiles anyways, so I don't think this will introduce new breakage for users of alternative libc implementations. Signed-off-by: Eric Wong <e@80x24.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Eric Wong committed Jul 10, 2016 at 22:16 UTC 52fcec75ce3a010ef4b2bbd1161da5e5fe301ec7
1 file changed +2
config.mak.uname
+2
@@ -36,6 +36,8 @@ ifeq ($(uname_S),Linux)
36 HAVE_DEV_TTY = YesPlease
37 HAVE_CLOCK_GETTIME = YesPlease
38 HAVE_CLOCK_MONOTONIC = YesPlease
39 + # -lrt is needed for clock_gettime on glibc <= 2.16
40 + NEEDS_LIBRT = YesPlease
41 HAVE_GETDELIM = YesPlease
42 SANE_TEXT_GREP=-a
43 endif