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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:21:29 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:21:29 +0000 |
| commit | 29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc (patch) | |
| tree | 63ef546b10a81d461e5cf5ed9e98a68cd7dee1aa /src/grep/m4/minmax.m4 | |
| parent | Initial commit. (diff) | |
| download | kbuild-29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc.tar.xz kbuild-29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc.zip | |
Adding upstream version 1:0.1.9998svn3589+dfsg.upstream/1%0.1.9998svn3589+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/grep/m4/minmax.m4')
| -rw-r--r-- | src/grep/m4/minmax.m4 | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/grep/m4/minmax.m4 b/src/grep/m4/minmax.m4 new file mode 100644 index 0000000..e21a687 --- /dev/null +++ b/src/grep/m4/minmax.m4 @@ -0,0 +1,44 @@ +# minmax.m4 serial 4 +dnl Copyright (C) 2005, 2009-2021 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_PREREQ([2.53]) + +AC_DEFUN([gl_MINMAX], +[ + AC_REQUIRE([gl_PREREQ_MINMAX]) +]) + +# Prerequisites of lib/minmax.h. +AC_DEFUN([gl_PREREQ_MINMAX], +[ + gl_MINMAX_IN_HEADER([limits.h]) + gl_MINMAX_IN_HEADER([sys/param.h]) +]) + +dnl gl_MINMAX_IN_HEADER(HEADER) +dnl The parameter has to be a literal header name; it cannot be macro, +dnl nor a shell variable. (Because autoheader collects only AC_DEFINE +dnl invocations with a literal macro name.) +AC_DEFUN([gl_MINMAX_IN_HEADER], +[ + m4_pushdef([header], AS_TR_SH([$1])) + m4_pushdef([HEADER], AS_TR_CPP([$1])) + AC_CACHE_CHECK([whether <$1> defines MIN and MAX], + [gl_cv_minmax_in_]header, + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <$1> + int x = MIN (42, 17);]], + [[]])], + [gl_cv_minmax_in_]header[=yes], + [gl_cv_minmax_in_]header[=no])]) + if test $gl_cv_minmax_in_[]header = yes; then + AC_DEFINE([HAVE_MINMAX_IN_]HEADER, 1, + [Define to 1 if <$1> defines the MIN and MAX macros.]) + fi + m4_popdef([HEADER]) + m4_popdef([header]) +]) |