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authorKristian Schuster <116557017+KriSchu@users.noreply.github.com>2023-02-19 23:49:18 +0100
committerKristian Schuster <116557017+KriSchu@users.noreply.github.com>2023-02-19 23:49:18 +0100
commita0d42777217296c0a7bdb1e1be8d8f6de1b24dd7 (patch)
tree8effe94c57b2f9796ba36090b07551baa8f1e1cb /gl/m4/minmax.m4
parentca3d59cd6918c9e2739e783b721d4c1122640fd3 (diff)
parentc07206f2ccc2356aa74bc6813a94c2190017d44e (diff)
downloadmonitoring-plugins-a0d42777217296c0a7bdb1e1be8d8f6de1b24dd7.tar.gz
Merge remote-tracking branch 'origin/master' into feature_check_disk_add_ignore_missing_option
Diffstat (limited to 'gl/m4/minmax.m4')
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1# minmax.m4 serial 4
2dnl Copyright (C) 2005, 2009-2023 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_PREREQ([2.53])
8
9AC_DEFUN([gl_MINMAX],
10[
11 AC_REQUIRE([gl_PREREQ_MINMAX])
12])
13
14# Prerequisites of lib/minmax.h.
15AC_DEFUN([gl_PREREQ_MINMAX],
16[
17 gl_MINMAX_IN_HEADER([limits.h])
18 gl_MINMAX_IN_HEADER([sys/param.h])
19])
20
21dnl gl_MINMAX_IN_HEADER(HEADER)
22dnl The parameter has to be a literal header name; it cannot be macro,
23dnl nor a shell variable. (Because autoheader collects only AC_DEFINE
24dnl invocations with a literal macro name.)
25AC_DEFUN([gl_MINMAX_IN_HEADER],
26[
27 m4_pushdef([header], AS_TR_SH([$1]))
28 m4_pushdef([HEADER], AS_TR_CPP([$1]))
29 AC_CACHE_CHECK([whether <$1> defines MIN and MAX],
30 [gl_cv_minmax_in_]header,
31 [AC_COMPILE_IFELSE(
32 [AC_LANG_PROGRAM(
33 [[#include <$1>
34 int x = MIN (42, 17);]],
35 [[]])],
36 [gl_cv_minmax_in_]header[=yes],
37 [gl_cv_minmax_in_]header[=no])])
38 if test $gl_cv_minmax_in_[]header = yes; then
39 AC_DEFINE([HAVE_MINMAX_IN_]HEADER, 1,
40 [Define to 1 if <$1> defines the MIN and MAX macros.])
41 fi
42 m4_popdef([HEADER])
43 m4_popdef([header])
44])