1ef01931fSBen Grasdnl from autoconf 2.13 acspecific.m4, with changes to check for daylight 2ef01931fSBen Gras 3ef01931fSBen GrasAC_DEFUN([AC_STRUCT_TIMEZONE_DAYLIGHT], 4ef01931fSBen Gras[AC_REQUIRE([AC_STRUCT_TM])dnl 5ef01931fSBen GrasAC_CACHE_CHECK([for tm_zone in struct tm], ac_cv_struct_tm_zone, 6ef01931fSBen Gras[AC_TRY_COMPILE([#include <sys/types.h> 7ef01931fSBen Gras#include <$ac_cv_struct_tm>], [struct tm tm; tm.tm_zone;], 8ef01931fSBen Gras ac_cv_struct_tm_zone=yes, ac_cv_struct_tm_zone=no)]) 9ef01931fSBen Grasif test "$ac_cv_struct_tm_zone" = yes; then 10ef01931fSBen Gras AC_DEFINE(HAVE_TM_ZONE,1,[HAVE_TM_ZONE]) 11ef01931fSBen Grasfi 12ef01931fSBen Gras 13*835f6802SDirk Vogt# On SGI, apparently tzname is a #define, but that's ok, AC_CHECK_DECL will 14*835f6802SDirk Vogt# consider it declared and we won't give our own extern. 15*835f6802SDirk VogtAC_CHECK_DECLS([tzname], , , [#include <time.h>]) 16ef01931fSBen GrasAC_CACHE_CHECK(for tzname, ac_cv_var_tzname, 17ef01931fSBen Gras[AC_TRY_LINK( 18*835f6802SDirk Vogt[#include <time.h> 19*835f6802SDirk Vogt#if !HAVE_DECL_TZNAME 20*835f6802SDirk Vogtextern char *tzname[]; 21*835f6802SDirk Vogt#endif], 22*835f6802SDirk Vogt[return tzname[0][0];], [ac_cv_var_tzname=yes], [ac_cv_var_tzname=no])]) 23ef01931fSBen Gras if test $ac_cv_var_tzname = yes; then 24ef01931fSBen Gras AC_DEFINE(HAVE_TZNAME,1,[HAVE_TZNAME]) 25ef01931fSBen Gras fi 26ef01931fSBen Gras 27ef01931fSBen GrasAC_CACHE_CHECK([for tm_isdst in struct tm], ac_cv_struct_tm_isdst, 28ef01931fSBen Gras[AC_TRY_COMPILE([#include <sys/types.h> 29ef01931fSBen Gras#include <$ac_cv_struct_tm>], [struct tm tm; tm.tm_isdst;], 30ef01931fSBen Gras ac_cv_struct_tm_isdst=yes, ac_cv_struct_tm_isdst=no)]) 31ef01931fSBen Grasif test "$ac_cv_struct_tm_isdst" = yes; then 32ef01931fSBen Gras AC_DEFINE(HAVE_TM_ISDST,1,[HAVE_TM_ISDST]) 33ef01931fSBen Grasfi 34ef01931fSBen Gras 35*835f6802SDirk Vogt 36*835f6802SDirk VogtAC_CHECK_DECLS([daylight], , , [#include <time.h>]) 37ef01931fSBen GrasAC_CACHE_CHECK(for daylight, ac_cv_var_daylight, 38ef01931fSBen Gras[AC_TRY_LINK( 39ef01931fSBen Graschangequote(<<, >>)dnl 40ef01931fSBen Gras<<#include <time.h> 41*835f6802SDirk Vogt#if !HAVE_DECL_DAYLIGHT 42ef01931fSBen Grasextern int daylight; 43ef01931fSBen Gras#endif>>, 44ef01931fSBen Graschangequote([, ])dnl 45ef01931fSBen Gras[atoi(daylight);], ac_cv_var_daylight=yes, ac_cv_var_daylight=no)]) 46ef01931fSBen Gras if test $ac_cv_var_daylight = yes; then 47ef01931fSBen Gras AC_DEFINE(HAVE_DAYLIGHT,1,[HAVE_DAYLIGHT]) 48ef01931fSBen Gras fi 49ef01931fSBen Gras]) 50ef01931fSBen Gras 51ef01931fSBen GrasAC_DEFUN([AC_STRUCT_OPTION_GETOPT_H], 52ef01931fSBen Gras[AC_CACHE_CHECK([for struct option in getopt], ac_cv_struct_option_getopt_h, 53ef01931fSBen Gras[AC_TRY_COMPILE([#include <getopt.h>], [struct option op; op.name;], 54ef01931fSBen Gras ac_cv_struct_option_getopt_h=yes, ac_cv_struct_option_getopt_h=no)]) 55ef01931fSBen Grasif test "$ac_cv_struct_option_getopt_h" = yes; then 56ef01931fSBen Gras AC_DEFINE(HAVE_STRUCT_OPTION,1,[HAVE_STRUCT_OPTION]) 57ef01931fSBen Grasfi 58ef01931fSBen Gras]) 59