HCoop / bpt / guile.git / blame
| Commit | Line | Data |
|---|---|---|
| e65fc94b LC |
1 | # Configure a more-standard replacement for <time.h>. |
| 2 | ||
| 25361e4b | 3 | # Copyright (C) 2000-2001, 2003-2007, 2009 Free Software Foundation, Inc. |
| e65fc94b LC |
4 | |
| 5 | # This file is free software; the Free Software Foundation | |
| 6 | # gives unlimited permission to copy and/or distribute it, | |
| 7 | # with or without modifications, as long as this notice is preserved. | |
| 8 | ||
| 9 | # Written by Paul Eggert and Jim Meyering. | |
| 10 | ||
| 11 | AC_DEFUN([gl_HEADER_TIME_H], | |
| 12 | [ | |
| 13 | dnl Use AC_REQUIRE here, so that the default behavior below is expanded | |
| 14 | dnl once only, before all statements that occur in other macros. | |
| 15 | AC_REQUIRE([gl_HEADER_TIME_H_BODY]) | |
| 16 | ]) | |
| 17 | ||
| 18 | AC_DEFUN([gl_HEADER_TIME_H_BODY], | |
| 19 | [ | |
| 20 | AC_REQUIRE([AC_C_RESTRICT]) | |
| 21 | AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) | |
| 22 | gl_CHECK_NEXT_HEADERS([time.h]) | |
| 23 | AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC]) | |
| 24 | ]) | |
| 25 | ||
| 26 | AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS], | |
| 27 | [ | |
| 28 | dnl If another module says to replace or to not replace, do that. | |
| 29 | dnl Otherwise, replace only if someone compiles with -DGNULIB_PORTCHECK; | |
| 30 | dnl this lets maintainers check for portability. | |
| 31 | REPLACE_LOCALTIME_R=GNULIB_PORTCHECK; AC_SUBST([REPLACE_LOCALTIME_R]) | |
| 25361e4b | 32 | REPLACE_MKTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_MKTIME]) |
| e65fc94b LC |
33 | REPLACE_NANOSLEEP=GNULIB_PORTCHECK; AC_SUBST([REPLACE_NANOSLEEP]) |
| 34 | REPLACE_STRPTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_STRPTIME]) | |
| 35 | REPLACE_TIMEGM=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TIMEGM]) | |
| 36 | ]) | |
| 37 | ||
| 38 | dnl Define HAVE_STRUCT_TIMESPEC if `struct timespec' is declared | |
| 39 | dnl in time.h or sys/time.h. | |
| 40 | ||
| 41 | AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC], | |
| 42 | [ | |
| 43 | AC_CHECK_HEADERS_ONCE([sys/time.h]) | |
| 44 | AC_CACHE_CHECK([for struct timespec in <time.h>], | |
| 45 | [gl_cv_sys_struct_timespec_in_time_h], | |
| 46 | [AC_COMPILE_IFELSE( | |
| 47 | [AC_LANG_PROGRAM( | |
| 1cd4fffc LC |
48 | [[#include <time.h> |
| 49 | ]], | |
| 50 | [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], | |
| e65fc94b LC |
51 | [gl_cv_sys_struct_timespec_in_time_h=yes], |
| 52 | [gl_cv_sys_struct_timespec_in_time_h=no])]) | |
| 53 | ||
| 54 | TIME_H_DEFINES_STRUCT_TIMESPEC=0 | |
| 55 | SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=0 | |
| 56 | if test $gl_cv_sys_struct_timespec_in_time_h = yes; then | |
| 57 | TIME_H_DEFINES_STRUCT_TIMESPEC=1 | |
| 58 | else | |
| 59 | AC_CACHE_CHECK([for struct timespec in <sys/time.h>], | |
| 60 | [gl_cv_sys_struct_timespec_in_sys_time_h], | |
| 61 | [AC_COMPILE_IFELSE( | |
| 1cd4fffc LC |
62 | [AC_LANG_PROGRAM( |
| 63 | [[#include <sys/time.h> | |
| 64 | ]], | |
| 65 | [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], | |
| 66 | [gl_cv_sys_struct_timespec_in_sys_time_h=yes], | |
| 67 | [gl_cv_sys_struct_timespec_in_sys_time_h=no])]) | |
| e65fc94b LC |
68 | if test $gl_cv_sys_struct_timespec_in_sys_time_h = yes; then |
| 69 | SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=1 | |
| 70 | fi | |
| 71 | fi | |
| 72 | AC_SUBST([TIME_H_DEFINES_STRUCT_TIMESPEC]) | |
| 73 | AC_SUBST([SYS_TIME_H_DEFINES_STRUCT_TIMESPEC]) | |
| 74 | ]) |