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acdad1f1cb
(cherry picked from commit 898496ee09ed2b7d25f6807edc4515628196ec0a) Disable byteswap.h for now. (cherry picked from commit 90474518912f5e5f49bc5325b7f88e94eba64d6a)
61 lines
2.1 KiB
Text
61 lines
2.1 KiB
Text
dnl from autoconf 2.13 acspecific.m4, with changes to check for daylight
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AC_DEFUN([AC_STRUCT_TIMEZONE_DAYLIGHT],
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[AC_REQUIRE([AC_STRUCT_TM])dnl
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AC_CACHE_CHECK([for tm_zone in struct tm], ac_cv_struct_tm_zone,
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([#include <sys/types.h>
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#include <$ac_cv_struct_tm>], [struct tm tm; tm.tm_zone;])],
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ac_cv_struct_tm_zone=yes, ac_cv_struct_tm_zone=no)])
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if test "$ac_cv_struct_tm_zone" = yes; then
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AC_DEFINE(HAVE_TM_ZONE,1,[HAVE_TM_ZONE])
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fi
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# On SGI, apparently tzname is a #define, but that's ok, AC_CHECK_DECL will
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# consider it declared and we won't give our own extern.
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AC_CHECK_DECLS([tzname], , , [#include <time.h>])
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AC_CACHE_CHECK(for tzname, ac_cv_var_tzname,
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[AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([#include <time.h>],
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[[#if !HAVE_DECL_TZNAME
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extern char *tzname[];
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#endif
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return tzname[0][0];]])], [ac_cv_var_tzname=yes], [ac_cv_var_tzname=no])])
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if test $ac_cv_var_tzname = yes; then
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AC_DEFINE(HAVE_TZNAME,1,[HAVE_TZNAME])
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fi
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AC_CACHE_CHECK([for tm_isdst in struct tm], ac_cv_struct_tm_isdst,
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([#include <sys/types.h>
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#include <$ac_cv_struct_tm>], [struct tm tm; tm.tm_isdst;])],
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ac_cv_struct_tm_isdst=yes, ac_cv_struct_tm_isdst=no)])
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if test "$ac_cv_struct_tm_isdst" = yes; then
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AC_DEFINE(HAVE_TM_ISDST,1,[HAVE_TM_ISDST])
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fi
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AC_CHECK_DECLS([daylight], , , [#include <time.h>
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#include <stdlib.h>])
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AC_CACHE_CHECK(for daylight, ac_cv_var_daylight,
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[AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([#include <time.h>
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#include <stdlib.h>],
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[#if !HAVE_DECL_DAYLIGHT
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extern int daylight;
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#endif
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daylight = atoi("1");])], ac_cv_var_daylight=yes, ac_cv_var_daylight=no)])
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if test $ac_cv_var_daylight = yes; then
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AC_DEFINE(HAVE_DAYLIGHT,1,[HAVE_DAYLIGHT])
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fi
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])
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AC_DEFUN([AC_STRUCT_OPTION_GETOPT_H],
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[AC_CACHE_CHECK([for struct option in getopt], ac_cv_struct_option_getopt_h,
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([#include <getopt.h>], [struct option op; op.name;])],
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ac_cv_struct_option_getopt_h=yes, ac_cv_struct_option_getopt_h=no)])
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if test "$ac_cv_struct_option_getopt_h" = yes; then
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AC_DEFINE(HAVE_STRUCT_OPTION,1,[HAVE_STRUCT_OPTION])
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fi
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])
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