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34 lines
1.2 KiB
Plaintext
34 lines
1.2 KiB
Plaintext
dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_var_timezone_externals.html
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dnl
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AC_DEFUN([AC_VAR_TIMEZONE_EXTERNALS],
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[ AC_REQUIRE([AC_STRUCT_TIMEZONE])dnl
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AC_CACHE_CHECK(for timezone external, mb_cv_var_timezone,
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[ AC_TRY_LINK([#include <time.h>], [return (int)timezone;],
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mb_cv_var_timezone=yes,
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mb_cv_var_timezone=no)
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])
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AC_CACHE_CHECK(for altzone external, mb_cv_var_altzone,
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[ AC_TRY_LINK([#include <time.h>], [return (int)altzone;],
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mb_cv_var_altzone=yes,
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mb_cv_var_altzone=no)
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])
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AC_CACHE_CHECK(for daylight external, mb_cv_var_daylight,
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[ AC_TRY_LINK([#include <time.h>], [return (int)daylight;],
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mb_cv_var_daylight=yes,
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mb_cv_var_daylight=no)
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])
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if test $mb_cv_var_timezone = yes; then
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AC_DEFINE([HAVE_TIMEZONE], 1,
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[Define if you have the external `timezone' variable.])
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fi
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if test $mb_cv_var_altzone = yes; then
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AC_DEFINE([HAVE_ALTZONE], 1,
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[Define if you have the external `altzone' variable.])
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fi
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if test $mb_cv_var_daylight = yes; then
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AC_DEFINE([HAVE_DAYLIGHT], 1,
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[Define if you have the external `daylight' variable.])
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fi
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])
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