From 29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:21:29 +0200 Subject: Adding upstream version 1:0.1.9998svn3589+dfsg. Signed-off-by: Daniel Baumann --- src/grep/m4/getprogname.m4 | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 src/grep/m4/getprogname.m4 (limited to 'src/grep/m4/getprogname.m4') diff --git a/src/grep/m4/getprogname.m4 b/src/grep/m4/getprogname.m4 new file mode 100644 index 0000000..65917d6 --- /dev/null +++ b/src/grep/m4/getprogname.m4 @@ -0,0 +1,43 @@ +# getprogname.m4 - check for getprogname or replacements for it + +# Copyright (C) 2016-2021 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# serial 4 + +AC_DEFUN([gl_FUNC_GETPROGNAME], +[ + AC_CHECK_FUNCS_ONCE([getprogname getexecname]) + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + ac_found=0 + AC_CHECK_DECLS([program_invocation_name], [ac_found=1], [], + [#include ]) + AC_CHECK_DECLS([program_invocation_short_name], [ac_found=1], [], + [#include ]) + AC_CHECK_DECLS([__argv], [ac_found=1], [], [#include ]) + + # Incur the cost of this test only if none of the above worked. + if test $ac_found = 0; then + # On OpenBSD 5.1, using the global __progname variable appears to be + # the only way to implement getprogname. + AC_CACHE_CHECK([whether __progname is defined in default libraries], + [gl_cv_var___progname], + [ + gl_cv_var___progname= + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[extern char *__progname;]], + [[return *__progname;]] + )], + [gl_cv_var___progname=yes] + ) + ] + ) + if test "$gl_cv_var___progname" = yes; then + AC_DEFINE([HAVE_VAR___PROGNAME], 1, + [Define if you have a global __progname variable]) + fi + fi +]) -- cgit v1.2.3