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File cvs-gnulib.diff of Package cvs
Index: m4/mktime.m4 =================================================================== --- m4/mktime.m4.orig +++ m4/mktime.m4 @@ -14,31 +14,30 @@ dnl From Jim Meyering. # -------------- AC_DEFUN([AC_FUNC_MKTIME], [AC_REQUIRE([AC_HEADER_TIME])dnl -AC_CHECK_HEADERS(stdlib.h sys/time.h unistd.h) -AC_CHECK_FUNCS(alarm) +AC_CHECK_HEADERS_ONCE(sys/time.h unistd.h) +AC_CHECK_FUNCS_ONCE(alarm) AC_CACHE_CHECK([for working mktime], ac_cv_func_working_mktime, [AC_RUN_IFELSE([AC_LANG_SOURCE( [[/* Test program from Paul Eggert and Tony Leneis. */ -#if TIME_WITH_SYS_TIME +#ifdef TIME_WITH_SYS_TIME # include <sys/time.h> # include <time.h> #else -# if HAVE_SYS_TIME_H +# ifdef HAVE_SYS_TIME_H # include <sys/time.h> # else # include <time.h> # endif #endif -#if HAVE_STDLIB_H -# include <stdlib.h> -#endif +#include <limits.h> +#include <stdlib.h> -#if HAVE_UNISTD_H +#ifdef HAVE_UNISTD_H # include <unistd.h> #endif -#if !HAVE_ALARM +#ifndef HAVE_ALARM # define alarm(X) /* empty */ #endif @@ -55,9 +54,9 @@ static char *tz_strings[] = { }; #define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0])) -/* Fail if mktime fails to convert a date in the spring-forward gap. +/* Return 0 if mktime fails to convert a date in the spring-forward gap. Based on a problem report from Andreas Jaeger. */ -static void +static int spring_forward_gap () { /* glibc (up to about 1998-10-07) failed this test. */ @@ -76,29 +75,27 @@ spring_forward_gap () tm.tm_min = 0; tm.tm_sec = 0; tm.tm_isdst = -1; - if (mktime (&tm) == (time_t)-1) - exit (1); + return mktime (&tm) != (time_t) -1; } -static void +static int mktime_test1 (now) time_t now; { struct tm *lt; - if ((lt = localtime (&now)) && mktime (lt) != now) - exit (1); + return ! (lt = localtime (&now)) || mktime (lt) == now; } -static void +static int mktime_test (now) time_t now; { - mktime_test1 (now); - mktime_test1 ((time_t) (time_t_max - now)); - mktime_test1 ((time_t) (time_t_min + now)); + return (mktime_test1 (now) + && mktime_test1 ((time_t) (time_t_max - now)) + && mktime_test1 ((time_t) (time_t_min + now))); } -static void +static int irix_6_4_bug () { /* Based on code from Ariel Faigon. */ @@ -111,11 +108,10 @@ irix_6_4_bug () tm.tm_sec = 0; tm.tm_isdst = -1; mktime (&tm); - if (tm.tm_mon != 2 || tm.tm_mday != 31) - exit (1); + return tm.tm_mon == 2 && tm.tm_mday == 31; } -static void +static int bigtime_test (j) int j; { @@ -137,8 +133,39 @@ bigtime_test (j) && lt->tm_wday == tm.tm_wday && ((lt->tm_isdst < 0 ? -1 : 0 < lt->tm_isdst) == (tm.tm_isdst < 0 ? -1 : 0 < tm.tm_isdst)))) - exit (1); + return 0; } + return 1; +} + +static int +year_2050_test () +{ + /* The correct answer for 2050-02-01 00:00:00 in Pacific time, + ignoring leap seconds. */ + unsigned long int answer = 2527315200UL; + + struct tm tm; + time_t t; + tm.tm_year = 2050 - 1900; + tm.tm_mon = 2 - 1; + tm.tm_mday = 1; + tm.tm_hour = tm.tm_min = tm.tm_sec = 0; + tm.tm_isdst = -1; + + /* Use the portable POSIX.1 specification "TZ=PST8PDT,M4.1.0,M10.5.0" + instead of "TZ=America/Vancouver" in order to detect the bug even + on systems that don't support the Olson extension, or don't have the + full zoneinfo tables installed. */ + putenv ("TZ=PST8PDT,M4.1.0,M10.5.0"); + + t = mktime (&tm); + + /* Check that the result is either a failure, or close enough + to the correct answer that we can assume the discrepancy is + due to leap seconds. */ + return (t == (time_t) -1 + || (0 < t && answer - 120 <= t && t <= answer + 120)); } int @@ -152,12 +179,15 @@ main () isn't worth using anyway. */ alarm (60); - for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2) - continue; - time_t_max--; - if ((time_t) -1 < 0) - for (time_t_min = -1; (time_t) (time_t_min * 2) < 0; time_t_min *= 2) - continue; + for (;;) + { + t = (time_t_max << 1) + 1; + if (t <= time_t_max) + break; + time_t_max = t; + } + time_t_min = - ((time_t) ~ (time_t) 0 == (time_t) -1) - time_t_max; + delta = time_t_max / 997; /* a suitable prime number */ for (i = 0; i < N_STRINGS; i++) { @@ -165,18 +195,22 @@ main () putenv (tz_strings[i]); for (t = 0; t <= time_t_max - delta; t += delta) - mktime_test (t); - mktime_test ((time_t) 1); - mktime_test ((time_t) (60 * 60)); - mktime_test ((time_t) (60 * 60 * 24)); - - for (j = 1; 0 < j; j *= 2) - bigtime_test (j); - bigtime_test (j - 1); + if (! mktime_test (t)) + return 1; + if (! (mktime_test ((time_t) 1) + && mktime_test ((time_t) (60 * 60)) + && mktime_test ((time_t) (60 * 60 * 24)))) + return 1; + + for (j = 1; ; j <<= 1) + if (! bigtime_test (j)) + return 1; + else if (INT_MAX / 2 < j) + break; + if (! bigtime_test (INT_MAX)) + return 1; } - irix_6_4_bug (); - spring_forward_gap (); - exit (0); + return ! (irix_6_4_bug () && spring_forward_gap () && year_2050_test ()); }]])], [ac_cv_func_working_mktime=yes], [ac_cv_func_working_mktime=no], Index: m4/extensions.m4 =================================================================== --- m4/extensions.m4.orig +++ m4/extensions.m4 @@ -1,30 +1,86 @@ +# serial 5 -*- Autoconf -*- # Enable extensions on systems that normally disable them. -# Copyright (C) 2003 Free Software Foundation, Inc. +# Copyright (C) 2003, 2006-2008 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. -# gl_USE_SYSTEM_EXTENSIONS +# This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from CVS +# Autoconf. Perhaps we can remove this once we can assume Autoconf +# 2.62 or later everywhere, but since CVS Autoconf mutates rapidly +# enough in this area it's likely we'll need to redefine +# AC_USE_SYSTEM_EXTENSIONS for quite some time. + +# AC_USE_SYSTEM_EXTENSIONS # ------------------------ # Enable extensions on systems that normally disable them, # typically due to standards-conformance issues. -AC_DEFUN([gl_USE_SYSTEM_EXTENSIONS], [ - AC_BEFORE([$0], [AC_COMPILE_IFELSE]) - AC_BEFORE([$0], [AC_RUN_IFELSE]) - - AC_REQUIRE([AC_GNU_SOURCE]) - AC_REQUIRE([AC_AIX]) - AC_REQUIRE([AC_MINIX]) +# Remember that #undef in AH_VERBATIM gets replaced with #define by +# AC_DEFINE. The goal here is to define all known feature-enabling +# macros, then, if reports of conflicts are made, disable macros that +# cause problems on some platforms (such as __EXTENSIONS__). +AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS], +[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl +AC_BEFORE([$0], [AC_RUN_IFELSE])dnl + + AC_CHECK_HEADER([minix/config.h], [MINIX=yes], [MINIX=]) + if test "$MINIX" = yes; then + AC_DEFINE([_POSIX_SOURCE], [1], + [Define to 1 if you need to in order for `stat' and other + things to work.]) + AC_DEFINE([_POSIX_1_SOURCE], [2], + [Define to 2 if the system does not provide POSIX.1 features + except with this defined.]) + AC_DEFINE([_MINIX], [1], + [Define to 1 if on MINIX.]) + fi AH_VERBATIM([__EXTENSIONS__], -[/* Enable extensions on Solaris. */ +[/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable threading extensions on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable general extensions on Solaris. */ #ifndef __EXTENSIONS__ # undef __EXTENSIONS__ #endif #ifndef _POSIX_PTHREAD_SEMANTICS # undef _POSIX_PTHREAD_SEMANTICS -#endif]) - AC_DEFINE([__EXTENSIONS__]) AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) + #endif ]) + AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__], + [ac_cv_safe_to_define___extensions__], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ +# define __EXTENSIONS__ 1 + ]AC_INCLUDES_DEFAULT])], + [ac_cv_safe_to_define___extensions__=yes], + [ac_cv_safe_to_define___extensions__=no])]) + test $ac_cv_safe_to_define___extensions__ = yes && + AC_DEFINE([__EXTENSIONS__]) + AC_DEFINE([_ALL_SOURCE]) + AC_DEFINE([_GNU_SOURCE]) + AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) + AC_DEFINE([_TANDEM_SOURCE]) +])# AC_USE_SYSTEM_EXTENSIONS + +# gl_USE_SYSTEM_EXTENSIONS +# ------------------------ +# Enable extensions on systems that normally disable them, +# typically due to standards-conformance issues. +AC_DEFUN([gl_USE_SYSTEM_EXTENSIONS], + [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])])
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