Mercurial > gnulib
view m4/mknod.m4 @ 39194:a84ae461a2f6
Add cross-compilation results for GNU/Hurd.
* m4/calloc.m4: Add GNU/Hurd guess.
* m4/cbrtl.m4: Likewise.
* m4/ceil.m4: Likewise.
* m4/ceilf.m4: Likewise.
* m4/ceill.m4: Likewise.
* m4/chown.m4: Likewise.
* m4/duplocale.m4: Likewise.
* m4/exp2l.m4: Likewise.
* m4/expm1.m4: Likewise.
* m4/fchdir.m4: Likewise.
* m4/floor.m4: Likewise.
* m4/floorf.m4: Likewise.
* m4/fmod.m4: Likewise.
* m4/fmodf.m4: Likewise.
* m4/fmodl.m4: Likewise.
* m4/getcwd.m4: Likewise.
* m4/getgroups.m4: Likewise.
* m4/gettimeofday.m4: Likewise.
* m4/hypot.m4: Likewise.
* m4/hypotf.m4: Likewise.
* m4/hypotl.m4: Likewise.
* m4/link-follow.m4: Likewise.
* m4/link.m4: Likewise.
* m4/linkat.m4: Likewise.
* m4/log.m4: Likewise.
* m4/log10.m4: Likewise.
* m4/log10f.m4: Likewise.
* m4/log1p.m4: Likewise.
* m4/log1pf.m4: Likewise.
* m4/log1pl.m4: Likewise.
* m4/log2.m4: Likewise.
* m4/log2f.m4: Likewise.
* m4/logf.m4: Likewise.
* m4/lstat.m4: Likewise.
* m4/malloc.m4: Likewise.
* m4/mbrlen.m4: Likewise.
* m4/mbrtowc.m4: Likewise.
* m4/mkdir.m4: Likewise.
* m4/mkfifo.m4: Likewise.
* m4/mknod.m4: Likewise.
* m4/mkstemp.m4: Likewise.
* m4/modf.m4: Likewise.
* m4/modff.m4: Likewise.
* m4/modfl.m4: Likewise.
* m4/printf.m4: Likewise.
* m4/pselect.m4: Likewise.
* m4/ptsname.m4: Likewise.
* m4/putenv.m4: Likewise.
* m4/readlink.m4: Likewise.
* m4/realloc.m4: Likewise.
* m4/remainder.m4: Likewise.
* m4/remainderf.m4: Likewise.
* m4/remainderl.m4: Likewise.
* m4/rmdir.m4: Likewise.
* m4/round.m4: Likewise.
* m4/roundf.m4: Likewise.
* m4/roundl.m4: Likewise.
* m4/select.m4: Likewise.
* m4/setenv.m4: Likewise.
* m4/signbit.m4: Likewise.
* m4/sleep.m4: Likewise.
* m4/stat.m4: Likewise.
* m4/strerror.m4: Likewise.
* m4/strtok_r.m4: Likewise.
* m4/symlink.m4: Likewise.
* m4/symlinkat.m4: Likewise.
* m4/trunc.m4: Likewise.
* m4/truncf.m4: Likewise.
* m4/truncl.m4: Likewise.
* m4/tzset.m4: Likewise.
* m4/ungetc.m4: Likewise.
* m4/usleep.m4: Likewise.
* m4/wcwidth.m4: Likewise.
author | Samuel Thibault <samuel.thibault@gnu.org> |
---|---|
date | Fri, 29 Dec 2017 17:30:07 +0100 |
parents | 66a613c135a8 |
children | 10eb9086bea0 |
line wrap: on
line source
# serial 6 # See if we need to provide mknod replacement. dnl Copyright (C) 2009-2017 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. # Written by Eric Blake. AC_DEFUN([gl_FUNC_MKNOD], [ AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_FUNC_MKFIFO]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([mknod]) if test $ac_cv_func_mknod = no; then HAVE_MKNOD=0 else dnl Detect BSD bug, where mknod requires root privileges to create fifo. AC_CACHE_CHECK([whether mknod can create fifo without root privileges], [gl_cv_func_mknod_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include <sys/stat.h> #include <unistd.h> /* Copied from root-uid.h. FIXME: Just use root-uid.h. */ #ifdef __TANDEM # define ROOT_UID 65535 #else # define ROOT_UID 0 #endif ]], [[/* Indeterminate for super-user, assume no. Why are you running configure as root, anyway? */ if (geteuid () == ROOT_UID) return 99; if (mknod ("conftest.fifo", S_IFIFO | 0600, 0)) return 2;]])], [gl_cv_func_mknod_works=yes], [if test $? = 99 && test x"$FORCE_UNSAFE_CONFIGURE" = x; then AC_MSG_FAILURE([you should not run configure as root ]dnl [(set FORCE_UNSAFE_CONFIGURE=1 in environment to bypass this check)]) fi gl_cv_func_mknod_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_mknod_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_mknod_works="guessing no" ;; esac ]) rm -f conftest.fifo]) case "$gl_cv_func_mknod_works" in *yes) ;; *) REPLACE_MKNOD=1 AC_DEFINE([MKNOD_FIFO_BUG], [1], [Define to 1 if mknod cannot create a fifo without super-user privileges]) ;; esac dnl Systems that mishandle trailing slash on mkfifo also goof on mknod. if test $REPLACE_MKFIFO = 1; then REPLACE_MKNOD=1 fi fi ])