m4/ac_var_timezone_externals.m4@f52908fb23b0 (annotated)
m4/ac_var_timezone_externals.m4
Sun, 04 Dec 2005 18:19:56 +0000
- author
- Richard Laager <rlaager@pidgin.im>
- date
- Sun, 04 Dec 2005 18:19:56 +0000
- changeset 12323
- f52908fb23b0
- parent 12023
- fcfb3f1c8125
- permissions
- -rw-r--r--
[gaim-migrate @ 14627]
Function prototypes need to be of the form foo(void); instead of foo(); for function that don't take any arguments. This allows the compiler to detect mistakes were someone passes arguments to such a function.
| 12023 | 1 | |
| 2 | # Define 'timezone', 'altzone' and 'daylight' | |
| 3 | # http://www.gnu.org/software/ac-archive/Miscellaneous/ac_var_timezone_externals.html | |
| 4 | # Use instead of 'AC_STRUCT_TIMEZONE' to determine whether the | |
| 5 | # the external timezone variables 'timezone', 'altzone' and 'daylight' exist, | |
| 6 | # defining 'HAVE_TIMEZONE', 'HAVE_ALTZONE' and 'HAVE_DAYLIGHT' respectively | |
| 7 | # (as well as gaining the macros defined by 'AC_STRUCT_TIMEZONE'). | |
| 8 | # Mark R.Bannister <markb@freedomware.co.uk> | |
| 9 | AC_DEFUN([AC_VAR_TIMEZONE_EXTERNALS], | |
| 10 | [ AC_REQUIRE([AC_STRUCT_TIMEZONE])dnl | |
| 11 | AC_CACHE_CHECK(for timezone external, mb_cv_var_timezone, | |
| 12 | [ AC_TRY_LINK([#include <time.h>], [return (int)timezone;], | |
| 13 | mb_cv_var_timezone=yes, | |
| 14 | mb_cv_var_timezone=no) | |
| 15 | ]) | |
| 16 | AC_CACHE_CHECK(for altzone external, mb_cv_var_altzone, | |
| 17 | [ AC_TRY_LINK([#include <time.h>], [return (int)altzone;], | |
| 18 | mb_cv_var_altzone=yes, | |
| 19 | mb_cv_var_altzone=no) | |
| 20 | ]) | |
| 21 | AC_CACHE_CHECK(for daylight external, mb_cv_var_daylight, | |
| 22 | [ AC_TRY_LINK([#include <time.h>], [return (int)daylight;], | |
| 23 | mb_cv_var_daylight=yes, | |
| 24 | mb_cv_var_daylight=no) | |
| 25 | ]) | |
| 26 | if test $mb_cv_var_timezone = yes; then | |
| 27 | AC_DEFINE([HAVE_TIMEZONE], 1, | |
| 28 | [Define if you have the external 'timezone' variable.]) | |
| 29 | fi | |
| 30 | if test $mb_cv_var_altzone = yes; then | |
| 31 | AC_DEFINE([HAVE_ALTZONE], 1, | |
| 32 | [Define if you have the external 'altzone' variable.]) | |
| 33 | fi | |
| 34 | if test $mb_cv_var_daylight = yes; then | |
| 35 | AC_DEFINE([HAVE_DAYLIGHT], 1, | |
| 36 | [Define if you have the external 'daylight' variable.]) | |
| 37 | fi | |
| 38 | ]) |
