From a6c3c638acea34116c6be7cc4be41a9bc55a7fa1 Mon Sep 17 00:00:00 2001 From: Reuben Hawkins Date: Thu, 8 Jan 2015 12:00:56 -0800 Subject: configure.ac: check for clock_gettime and CLOCK_MONOTONIC Set or clear Makefile variables HAVE_CLOCK_GETTIME and HAVE_CLOCK_MONOTONIC based upon results of the checks (overriding default values from config.mak.uname). CLOCK_MONOTONIC isn't available on RHEL3, but there are still RHEL3 systems being used in production. Signed-off-by: Reuben Hawkins Reviewed-by: Eric Sunshine Signed-off-by: Junio C Hamano --- configure.ac | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index 583af8ab5..6361dcbd5 100644 --- a/configure.ac +++ b/configure.ac @@ -947,6 +947,28 @@ AC_CHECK_LIB([iconv], [locale_charset], [CHARSET_LIB=-lcharset])]) GIT_CONF_SUBST([CHARSET_LIB]) # +# Define HAVE_CLOCK_GETTIME=YesPlease if clock_gettime is available. +GIT_CHECK_FUNC(clock_gettime, + [HAVE_CLOCK_GETTIME=YesPlease], + [HAVE_CLOCK_GETTIME=]) +GIT_CONF_SUBST([HAVE_CLOCK_GETTIME]) + +AC_DEFUN([CLOCK_MONOTONIC_SRC], [ +AC_LANG_PROGRAM([[ +#include +clockid_t id = CLOCK_MONOTONIC; +]])]) + +# +# Define HAVE_CLOCK_MONOTONIC=YesPlease if CLOCK_MONOTONIC is available. +AC_MSG_CHECKING([for CLOCK_MONOTONIC]) +AC_COMPILE_IFELSE([CLOCK_MONOTONIC_SRC], + [AC_MSG_RESULT([yes]) + HAVE_CLOCK_MONOTONIC=YesPlease], + [AC_MSG_RESULT([no]) + HAVE_CLOCK_MONOTONIC=]) +GIT_CONF_SUBST([HAVE_CLOCK_MONOTONIC]) +# # Define NO_SETITIMER if you don't have setitimer. GIT_CHECK_FUNC(setitimer, [NO_SETITIMER=], -- cgit v1.2.1