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authorThomas White <taw@physics.org>2018-03-12 09:57:31 +0100
committerThomas White <taw@physics.org>2018-03-12 10:17:49 +0100
commit95bb73d90fed58f61dddc0d1d3e8afeb9879daaa (patch)
tree98f8ae32c65a7af063ac448f401ef1b619c04950 /m4/fcntl-o.m4
parent77cf2edd09bb01ae331935f467064c751f6e338e (diff)
Remove autotools
Diffstat (limited to 'm4/fcntl-o.m4')
-rw-r--r--m4/fcntl-o.m4134
1 files changed, 0 insertions, 134 deletions
diff --git a/m4/fcntl-o.m4 b/m4/fcntl-o.m4
deleted file mode 100644
index 43c93124..00000000
--- a/m4/fcntl-o.m4
+++ /dev/null
@@ -1,134 +0,0 @@
-# fcntl-o.m4 serial 4
-dnl Copyright (C) 2006, 2009-2014 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.
-
-dnl Written by Paul Eggert.
-
-# Test whether the flags O_NOATIME and O_NOFOLLOW actually work.
-# Define HAVE_WORKING_O_NOATIME to 1 if O_NOATIME works, or to 0 otherwise.
-# Define HAVE_WORKING_O_NOFOLLOW to 1 if O_NOFOLLOW works, or to 0 otherwise.
-AC_DEFUN([gl_FCNTL_O_FLAGS],
-[
- dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW.
- dnl AC_USE_SYSTEM_EXTENSIONS was introduced in autoconf 2.60 and obsoletes
- dnl AC_GNU_SOURCE.
- m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],
- [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])],
- [AC_REQUIRE([AC_GNU_SOURCE])])
-
- AC_CHECK_HEADERS_ONCE([unistd.h])
- AC_CHECK_FUNCS_ONCE([symlink])
- AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h],
- [AC_RUN_IFELSE(
- [AC_LANG_PROGRAM(
- [[#include <sys/types.h>
- #include <sys/stat.h>
- #if HAVE_UNISTD_H
- # include <unistd.h>
- #else /* on Windows with MSVC */
- # include <io.h>
- # include <stdlib.h>
- # defined sleep(n) _sleep ((n) * 1000)
- #endif
- #include <fcntl.h>
- #ifndef O_NOATIME
- #define O_NOATIME 0
- #endif
- #ifndef O_NOFOLLOW
- #define O_NOFOLLOW 0
- #endif
- static int const constants[] =
- {
- O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC, O_APPEND,
- O_NONBLOCK, O_SYNC, O_ACCMODE, O_RDONLY, O_RDWR, O_WRONLY
- };
- ]],
- [[
- int result = !constants;
- #if HAVE_SYMLINK
- {
- static char const sym[] = "conftest.sym";
- if (symlink ("/dev/null", sym) != 0)
- result |= 2;
- else
- {
- int fd = open (sym, O_WRONLY | O_NOFOLLOW | O_CREAT, 0);
- if (fd >= 0)
- {
- close (fd);
- result |= 4;
- }
- }
- if (unlink (sym) != 0 || symlink (".", sym) != 0)
- result |= 2;
- else
- {
- int fd = open (sym, O_RDONLY | O_NOFOLLOW);
- if (fd >= 0)
- {
- close (fd);
- result |= 4;
- }
- }
- unlink (sym);
- }
- #endif
- {
- static char const file[] = "confdefs.h";
- int fd = open (file, O_RDONLY | O_NOATIME);
- if (fd < 0)
- result |= 8;
- else
- {
- struct stat st0;
- if (fstat (fd, &st0) != 0)
- result |= 16;
- else
- {
- char c;
- sleep (1);
- if (read (fd, &c, 1) != 1)
- result |= 24;
- else
- {
- if (close (fd) != 0)
- result |= 32;
- else
- {
- struct stat st1;
- if (stat (file, &st1) != 0)
- result |= 40;
- else
- if (st0.st_atime != st1.st_atime)
- result |= 64;
- }
- }
- }
- }
- }
- return result;]])],
- [gl_cv_header_working_fcntl_h=yes],
- [case $? in #(
- 4) gl_cv_header_working_fcntl_h='no (bad O_NOFOLLOW)';; #(
- 64) gl_cv_header_working_fcntl_h='no (bad O_NOATIME)';; #(
- 68) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #(
- *) gl_cv_header_working_fcntl_h='no';;
- esac],
- [gl_cv_header_working_fcntl_h=cross-compiling])])
-
- case $gl_cv_header_working_fcntl_h in #(
- *O_NOATIME* | no | cross-compiling) ac_val=0;; #(
- *) ac_val=1;;
- esac
- AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOATIME], [$ac_val],
- [Define to 1 if O_NOATIME works.])
-
- case $gl_cv_header_working_fcntl_h in #(
- *O_NOFOLLOW* | no | cross-compiling) ac_val=0;; #(
- *) ac_val=1;;
- esac
- AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOFOLLOW], [$ac_val],
- [Define to 1 if O_NOFOLLOW works.])
-])