11b108b8bSchristosdnl from autoconf 2.13 acspecific.m4, with changes to check for daylight 21b108b8bSchristos 31b108b8bSchristosAC_DEFUN([AC_STRUCT_TIMEZONE_DAYLIGHT], 41b108b8bSchristos[AC_REQUIRE([AC_STRUCT_TM])dnl 51b108b8bSchristosAC_CACHE_CHECK([for tm_zone in struct tm], ac_cv_struct_tm_zone, 6a77ebd86Schristos[AC_COMPILE_IFELSE( 7a77ebd86Schristos[AC_LANG_PROGRAM([#include <sys/types.h> 8a77ebd86Schristos#include <$ac_cv_struct_tm>], [struct tm tm; tm.tm_zone;])], 91b108b8bSchristos ac_cv_struct_tm_zone=yes, ac_cv_struct_tm_zone=no)]) 101b108b8bSchristosif test "$ac_cv_struct_tm_zone" = yes; then 111b108b8bSchristos AC_DEFINE(HAVE_TM_ZONE,1,[HAVE_TM_ZONE]) 121b108b8bSchristosfi 131b108b8bSchristos 145ccaa8c0Schristos# On SGI, apparently tzname is a #define, but that's ok, AC_CHECK_DECL will 155ccaa8c0Schristos# consider it declared and we won't give our own extern. 165ccaa8c0SchristosAC_CHECK_DECLS([tzname], , , [#include <time.h>]) 171b108b8bSchristosAC_CACHE_CHECK(for tzname, ac_cv_var_tzname, 18a77ebd86Schristos[AC_LINK_IFELSE( 19a77ebd86Schristos[AC_LANG_PROGRAM([#include <time.h>], 20a77ebd86Schristos[[#if !HAVE_DECL_TZNAME 215ccaa8c0Schristosextern char *tzname[]; 22a77ebd86Schristos#endif 23a77ebd86Schristosreturn tzname[0][0];]])], [ac_cv_var_tzname=yes], [ac_cv_var_tzname=no])]) 241b108b8bSchristos if test $ac_cv_var_tzname = yes; then 251b108b8bSchristos AC_DEFINE(HAVE_TZNAME,1,[HAVE_TZNAME]) 261b108b8bSchristos fi 271b108b8bSchristos 281b108b8bSchristosAC_CACHE_CHECK([for tm_isdst in struct tm], ac_cv_struct_tm_isdst, 29a77ebd86Schristos[AC_COMPILE_IFELSE( 30a77ebd86Schristos[AC_LANG_PROGRAM([#include <sys/types.h> 31a77ebd86Schristos#include <$ac_cv_struct_tm>], [struct tm tm; tm.tm_isdst;])], 321b108b8bSchristos ac_cv_struct_tm_isdst=yes, ac_cv_struct_tm_isdst=no)]) 331b108b8bSchristosif test "$ac_cv_struct_tm_isdst" = yes; then 341b108b8bSchristos AC_DEFINE(HAVE_TM_ISDST,1,[HAVE_TM_ISDST]) 351b108b8bSchristosfi 361b108b8bSchristos 375ccaa8c0Schristos 38a77ebd86SchristosAC_CHECK_DECLS([daylight], , , [#include <time.h> 39a77ebd86Schristos#include <stdlib.h>]) 401b108b8bSchristosAC_CACHE_CHECK(for daylight, ac_cv_var_daylight, 41a77ebd86Schristos[AC_LINK_IFELSE( 42*e15daa8bSchristos[AC_LANG_PROGRAM([#include <time.h> 43*e15daa8bSchristos#include <stdlib.h>], 44a77ebd86Schristos[#if !HAVE_DECL_DAYLIGHT 451b108b8bSchristosextern int daylight; 46a77ebd86Schristos#endif 47*e15daa8bSchristosdaylight = atoi("1");])], ac_cv_var_daylight=yes, ac_cv_var_daylight=no)]) 481b108b8bSchristos if test $ac_cv_var_daylight = yes; then 491b108b8bSchristos AC_DEFINE(HAVE_DAYLIGHT,1,[HAVE_DAYLIGHT]) 501b108b8bSchristos fi 511b108b8bSchristos]) 521b108b8bSchristos 531b108b8bSchristosAC_DEFUN([AC_STRUCT_OPTION_GETOPT_H], 541b108b8bSchristos[AC_CACHE_CHECK([for struct option in getopt], ac_cv_struct_option_getopt_h, 55a77ebd86Schristos[AC_COMPILE_IFELSE( 56a77ebd86Schristos[AC_LANG_PROGRAM([#include <getopt.h>], [struct option op; op.name;])], 571b108b8bSchristos ac_cv_struct_option_getopt_h=yes, ac_cv_struct_option_getopt_h=no)]) 581b108b8bSchristosif test "$ac_cv_struct_option_getopt_h" = yes; then 591b108b8bSchristos AC_DEFINE(HAVE_STRUCT_OPTION,1,[HAVE_STRUCT_OPTION]) 601b108b8bSchristosfi 611b108b8bSchristos]) 62