From bbe35a6e1b54ef5cd7c1c471886c30ba85c0804e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 19:47:50 +0200 Subject: Adding upstream version 1.21. Signed-off-by: Daniel Baumann --- m4/errno_h.m4 | 133 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 133 insertions(+) create mode 100644 m4/errno_h.m4 (limited to 'm4/errno_h.m4') diff --git a/m4/errno_h.m4 b/m4/errno_h.m4 new file mode 100644 index 0000000..dd4994f --- /dev/null +++ b/m4/errno_h.m4 @@ -0,0 +1,133 @@ +# errno_h.m4 serial 13 +dnl Copyright (C) 2004, 2006, 2008-2020 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([2.61]) + +AC_DEFUN_ONCE([gl_HEADER_ERRNO_H], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([for complete errno.h], [gl_cv_header_errno_h_complete], [ + AC_EGREP_CPP([booboo],[ +#include +#if !defined ETXTBSY +booboo +#endif +#if !defined ENOMSG +booboo +#endif +#if !defined EIDRM +booboo +#endif +#if !defined ENOLINK +booboo +#endif +#if !defined EPROTO +booboo +#endif +#if !defined EMULTIHOP +booboo +#endif +#if !defined EBADMSG +booboo +#endif +#if !defined EOVERFLOW +booboo +#endif +#if !defined ENOTSUP +booboo +#endif +#if !defined ENETRESET +booboo +#endif +#if !defined ECONNABORTED +booboo +#endif +#if !defined ESTALE +booboo +#endif +#if !defined EDQUOT +booboo +#endif +#if !defined ECANCELED +booboo +#endif +#if !defined EOWNERDEAD +booboo +#endif +#if !defined ENOTRECOVERABLE +booboo +#endif +#if !defined EILSEQ +booboo +#endif + ], + [gl_cv_header_errno_h_complete=no], + [gl_cv_header_errno_h_complete=yes]) + ]) + if test $gl_cv_header_errno_h_complete = yes; then + ERRNO_H='' + else + gl_NEXT_HEADERS([errno.h]) + ERRNO_H='errno.h' + fi + AC_SUBST([ERRNO_H]) + AM_CONDITIONAL([GL_GENERATE_ERRNO_H], [test -n "$ERRNO_H"]) + gl_REPLACE_ERRNO_VALUE([EMULTIHOP]) + gl_REPLACE_ERRNO_VALUE([ENOLINK]) + gl_REPLACE_ERRNO_VALUE([EOVERFLOW]) +]) + +# Assuming $1 = EOVERFLOW. +# The EOVERFLOW errno value ought to be defined in , according to +# POSIX. But some systems (like OpenBSD 4.0 or AIX 3) don't define it, and +# some systems (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined. +# Check for the value of EOVERFLOW. +# Set the variables EOVERFLOW_HIDDEN and EOVERFLOW_VALUE. +AC_DEFUN([gl_REPLACE_ERRNO_VALUE], +[ + if test -n "$ERRNO_H"; then + AC_CACHE_CHECK([for ]$1[ value], [gl_cv_header_errno_h_]$1, [ + AC_EGREP_CPP([yes],[ +#include +#ifdef ]$1[ +yes +#endif + ], + [gl_cv_header_errno_h_]$1[=yes], + [gl_cv_header_errno_h_]$1[=no]) + if test $gl_cv_header_errno_h_]$1[ = no; then + AC_EGREP_CPP([yes],[ +#define _XOPEN_SOURCE_EXTENDED 1 +#include +#ifdef ]$1[ +yes +#endif + ], [gl_cv_header_errno_h_]$1[=hidden]) + if test $gl_cv_header_errno_h_]$1[ = hidden; then + dnl The macro exists but is hidden. + dnl Define it to the same value. + AC_COMPUTE_INT([gl_cv_header_errno_h_]$1, $1, [ +#define _XOPEN_SOURCE_EXTENDED 1 +#include +/* The following two lines are a workaround against an autoconf-2.52 bug. */ +#include +#include +]) + fi + fi + ]) + case $gl_cv_header_errno_h_]$1[ in + yes | no) + ]$1[_HIDDEN=0; ]$1[_VALUE= + ;; + *) + ]$1[_HIDDEN=1; ]$1[_VALUE="$gl_cv_header_errno_h_]$1[" + ;; + esac + AC_SUBST($1[_HIDDEN]) + AC_SUBST($1[_VALUE]) + fi +]) -- cgit v1.2.3