mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-11-09 15:00:07 +00:00
69 lines
2.3 KiB
Plaintext
69 lines
2.3 KiB
Plaintext
|
# strerror.m4 serial 9
|
||
|
|
dnl Copyright (C) 2002, 2007-2008 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_DEFUN([gl_FUNC_STRERROR],
|
||
|
|
[
|
||
|
|
AC_REQUIRE([gl_FUNC_STRERROR_SEPARATE])
|
||
|
|
if test $REPLACE_STRERROR = 1; then
|
||
|
|
AC_LIBOBJ([strerror])
|
||
|
|
AC_DEFINE_UNQUOTED([REPLACE_STRERROR], [$REPLACE_STRERROR],
|
||
|
|
[Define this to 1 if strerror is broken.])
|
||
|
|
fi
|
||
|
|
])
|
||
|
|
|
||
|
|
# Like gl_FUNC_STRERROR, except prepare for separate compilation (no AC_LIBOBJ).
|
||
|
|
AC_DEFUN([gl_FUNC_STRERROR_SEPARATE],
|
||
|
|
[
|
||
|
|
AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
|
||
|
|
AC_REQUIRE([gl_HEADER_ERRNO_H])
|
||
|
|
if test -z "$ERRNO_H"; then
|
||
|
|
AC_CACHE_CHECK([for working strerror function],
|
||
|
|
[gl_cv_func_working_strerror],
|
||
|
|
[AC_RUN_IFELSE(
|
||
|
|
[AC_LANG_PROGRAM(
|
||
|
|
[[#include <string.h>
|
||
|
|
]],
|
||
|
|
[[return !*strerror (-2);]])],
|
||
|
|
[gl_cv_func_working_strerror=yes],
|
||
|
|
[gl_cv_func_working_strerror=no],
|
||
|
|
[dnl Assume crossbuild works if it compiles.
|
||
|
|
AC_COMPILE_IFELSE(
|
||
|
|
[AC_LANG_PROGRAM(
|
||
|
|
[[#include <string.h>
|
||
|
|
]],
|
||
|
|
[[return !*strerror (-2);]])],
|
||
|
|
[gl_cv_func_working_strerror=yes],
|
||
|
|
[gl_cv_func_working_strerror=no])
|
||
|
|
])
|
||
|
|
])
|
||
|
|
if test $gl_cv_func_working_strerror = no; then
|
||
|
|
dnl The system's strerror() fails to return a string for out-of-range
|
||
|
|
dnl integers. Replace it.
|
||
|
|
REPLACE_STRERROR=1
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
dnl The system's strerror() cannot know about the new errno values we add
|
||
|
|
dnl to <errno.h>. Replace it.
|
||
|
|
REPLACE_STRERROR=1
|
||
|
|
fi
|
||
|
|
if test $REPLACE_STRERROR = 1; then
|
||
|
|
gl_PREREQ_STRERROR
|
||
|
|
fi
|
||
|
|
])
|
||
|
|
|
||
|
|
# Prerequisites of lib/strerror.c.
|
||
|
|
AC_DEFUN([gl_PREREQ_STRERROR], [
|
||
|
|
AC_CHECK_DECLS([strerror])
|
||
|
|
AC_CHECK_HEADERS_ONCE([sys/socket.h])
|
||
|
|
if test $ac_cv_header_sys_socket_h != yes; then
|
||
|
|
dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
|
||
|
|
dnl the check for those headers unconditional; yet cygwin reports
|
||
|
|
dnl that the headers are present but cannot be compiled (since on
|
||
|
|
dnl cygwin, all socket information should come from sys/socket.h).
|
||
|
|
AC_CHECK_HEADERS([winsock2.h])
|
||
|
|
fi
|
||
|
|
])
|