diff options
Diffstat (limited to '')
| -rw-r--r-- | m4/timespec.m4 | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/m4/timespec.m4 b/m4/timespec.m4 new file mode 100644 index 0000000..3643b47 --- /dev/null +++ b/m4/timespec.m4 @@ -0,0 +1,71 @@ +# Configure checks for struct timespec + +# Copyright (C) 2000-2001, 2003-2007, 2009-2011, 2012 Free Software Foundation, Inc. + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Original written by Paul Eggert and Jim Meyering. +# Modified by Chet Ramey for bash + +dnl Define HAVE_STRUCT_TIMESPEC if `struct timespec' is declared +dnl in time.h, sys/time.h, or pthread.h. + +AC_DEFUN([BASH_CHECK_TYPE_STRUCT_TIMESPEC], +[ + AC_CHECK_HEADERS_ONCE([sys/time.h]) + AC_CACHE_CHECK([for struct timespec in <time.h>], + [bash_cv_sys_struct_timespec_in_time_h], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <time.h> + ]], + [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], + [bash_cv_sys_struct_timespec_in_time_h=yes], + [bash_cv_sys_struct_timespec_in_time_h=no])]) + + HAVE_STRUCT_TIMESPEC=0 + TIME_H_DEFINES_STRUCT_TIMESPEC=0 + SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=0 + PTHREAD_H_DEFINES_STRUCT_TIMESPEC=0 + if test $bash_cv_sys_struct_timespec_in_time_h = yes; then + AC_DEFINE([HAVE_STRUCT_TIMESPEC]) + AC_DEFINE([TIME_H_DEFINES_STRUCT_TIMESPEC]) + TIME_H_DEFINES_STRUCT_TIMESPEC=1 + else + AC_CACHE_CHECK([for struct timespec in <sys/time.h>], + [bash_cv_sys_struct_timespec_in_sys_time_h], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/time.h> + ]], + [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], + [bash_cv_sys_struct_timespec_in_sys_time_h=yes], + [bash_cv_sys_struct_timespec_in_sys_time_h=no])]) + if test $bash_cv_sys_struct_timespec_in_sys_time_h = yes; then + SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=1 + AC_DEFINE([HAVE_STRUCT_TIMESPEC]) + AC_DEFINE([SYS_TIME_H_DEFINES_STRUCT_TIMESPEC]) + else + AC_CACHE_CHECK([for struct timespec in <pthread.h>], + [bash_cv_sys_struct_timespec_in_pthread_h], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <pthread.h> + ]], + [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], + [bash_cv_sys_struct_timespec_in_pthread_h=yes], + [bash_cv_sys_struct_timespec_in_pthread_h=no])]) + if test $bash_cv_sys_struct_timespec_in_pthread_h = yes; then + PTHREAD_H_DEFINES_STRUCT_TIMESPEC=1 + AC_DEFINE([HAVE_STRUCT_TIMESPEC]) + AC_DEFINE([PTHREAD_H_DEFINES_STRUCT_TIMESPEC]) + fi + fi + fi + AC_SUBST([TIME_H_DEFINES_STRUCT_TIMESPEC]) + AC_SUBST([SYS_TIME_H_DEFINES_STRUCT_TIMESPEC]) + AC_SUBST([PTHREAD_H_DEFINES_STRUCT_TIMESPEC]) + +]) |