diff options
Diffstat (limited to 'm4/clock_time.m4')
| -rw-r--r-- | m4/clock_time.m4 | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/m4/clock_time.m4 b/m4/clock_time.m4 index 225355331..7b2f5bf1a 100644 --- a/m4/clock_time.m4 +++ b/m4/clock_time.m4 @@ -1,14 +1,14 @@ -# clock_time.m4 serial 11 -dnl Copyright (C) 2002-2006, 2009-2022 Free Software Foundation, Inc. +# clock_time.m4 serial 12 +dnl Copyright (C) 2002-2006, 2009-2023 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Check for clock_getres, clock_gettime and clock_settime, -# and set LIB_CLOCK_GETTIME. +# and set CLOCK_TIME_LIB. # For a program named, say foo, you should add a line like the following # in the corresponding Makefile.am file: -# foo_LDADD = $(LDADD) $(LIB_CLOCK_GETTIME) +# foo_LDADD = $(LDADD) $(CLOCK_TIME_LIB) AC_DEFUN([gl_CLOCK_TIME], [ @@ -21,12 +21,24 @@ AC_DEFUN([gl_CLOCK_TIME], # Save and restore LIBS so e.g., -lrt, isn't added to it. Otherwise, *all* # programs in the package would end up linked with that potentially-shared # library, inducing unnecessary run-time overhead. - LIB_CLOCK_GETTIME= - AC_SUBST([LIB_CLOCK_GETTIME]) + CLOCK_TIME_LIB= + AC_SUBST([CLOCK_TIME_LIB]) gl_saved_libs=$LIBS AC_SEARCH_LIBS([clock_gettime], [rt posix4], + [if test "$ac_cv_search_clock_gettime" = "none required"; then + AC_SEARCH_LIBS([clock_getcpuclockid], [rt posix4], + [test "$ac_cv_search_clock_getcpuclockid" = "none required" \ + || CLOCK_TIME_LIB=$ac_cv_search_clock_getcpuclockid], + [test "$ac_cv_search_clock_gettime" = "none required" \ + || CLOCK_TIME_LIB=$ac_cv_search_clock_gettime]) + else + CLOCK_TIME_LIB=$ac_cv_search_clock_gettime + fi] [test "$ac_cv_search_clock_gettime" = "none required" || - LIB_CLOCK_GETTIME=$ac_cv_search_clock_gettime]) - AC_CHECK_FUNCS([clock_getres clock_gettime clock_settime]) + CLOCK_TIME_LIB=$ac_cv_search_clock_gettime]) + AC_CHECK_FUNCS([clock_getres clock_gettime clock_settime clock_getcpuclockid]) LIBS=$gl_saved_libs + # For backward compatibility. + LIB_CLOCK_GETTIME="$CLOCK_TIME_LIB" + AC_SUBST([LIB_CLOCK_GETTIME]) ]) |