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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:19:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:19:27 +0000 |
commit | e0023883c6d2e6745a19e4b48e186ed156c1fca8 (patch) | |
tree | 1a48b8056ec984385d0d862b683535d04d6ed215 /gl/m4/getprogname.m4 | |
parent | Initial commit. (diff) | |
download | man-db-e0023883c6d2e6745a19e4b48e186ed156c1fca8.tar.xz man-db-e0023883c6d2e6745a19e4b48e186ed156c1fca8.zip |
Adding upstream version 2.11.2.upstream/2.11.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gl/m4/getprogname.m4')
-rw-r--r-- | gl/m4/getprogname.m4 | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gl/m4/getprogname.m4 b/gl/m4/getprogname.m4 new file mode 100644 index 0000000..b26146e --- /dev/null +++ b/gl/m4/getprogname.m4 @@ -0,0 +1,43 @@ +# getprogname.m4 - check for getprogname or replacements for it + +# Copyright (C) 2016-2022 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 <errno.h>]) + AC_CHECK_DECLS([program_invocation_short_name], [ac_found=1], [], + [#include <errno.h>]) + AC_CHECK_DECLS([__argv], [ac_found=1], [], [#include <stdlib.h>]) + + # 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 +]) |