summaryrefslogtreecommitdiffstats
path: root/gl/m4/minmax.m4
diff options
context:
space:
mode:
authorLorenz <12514511+RincewindsHat@users.noreply.github.com>2023-02-10 11:43:20 +0100
committerGitHub <noreply@github.com>2023-02-10 11:43:20 +0100
commitc07206f2ccc2356aa74bc6813a94c2190017d44e (patch)
tree1677e5fdca5c3ce544e92c5484e16a0b68df1cc9 /gl/m4/minmax.m4
parente92046f810658016b7c373677efefda3b21400e4 (diff)
parentd2fcf49ad4afc15f37d082d7bc96a808369ec2d4 (diff)
downloadmonitoring-plugins-c07206f2ccc2356aa74bc6813a94c2190017d44e.tar.gz
Merge pull request #1832 from RincewindsHat/gnulib_update_2023
Gnulib update 2023 and attendant fixes
Diffstat (limited to 'gl/m4/minmax.m4')
-rw-r--r--gl/m4/minmax.m444
1 files changed, 44 insertions, 0 deletions
diff --git a/gl/m4/minmax.m4 b/gl/m4/minmax.m4
new file mode 100644
index 00000000..fd09846f
--- /dev/null
+++ b/gl/m4/minmax.m4
@@ -0,0 +1,44 @@
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])