-# serial 17
+# serial 22
-# Copyright (C) 2001, 2003, 2005, 2006, 2009 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003, 2005-2006, 2009-2010 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.
[
AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ AC_CHECK_FUNCS_ONCE([lstat])
- dnl Solaris 10 mistakenly allows rename("file","name/").
- dnl This particular condition can be worked around without stripping
- dnl trailing slash.
+ dnl Solaris 10, AIX 7.1 mistakenly allow rename("file","name/").
+ dnl NetBSD 1.6 mistakenly forbids rename("dir","name/").
+ dnl FreeBSD 7.2 mistakenly allows rename("file","link-to-file/").
+ dnl The Solaris bug can be worked around without stripping
+ dnl trailing slash, while the NetBSD bug requires stripping;
+ dnl the two conditions can be distinguished by whether hard
+ dnl links are also broken.
AC_CACHE_CHECK([whether rename honors trailing slash on destination],
[gl_cv_func_rename_slash_dst_works],
- [rm -rf conftest.f conftest.f1
- touch conftest.f ||
+ [rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2 conftest.lnk
+ touch conftest.f && mkdir conftest.d1 ||
AC_MSG_ERROR([cannot create temporary files])
+ # Assume that if we have lstat, we can also check symlinks.
+ if test $ac_cv_func_lstat = yes; then
+ ln -s conftest.f conftest.lnk
+ fi
AC_RUN_IFELSE([AC_LANG_PROGRAM([[
# include <stdio.h>
# include <stdlib.h>
-]], [return !rename ("conftest.f", "conftest.f1/");])],
+]], [if (rename ("conftest.f", "conftest.f1/") == 0) return 1;
+ if (rename ("conftest.d1", "conftest.d2/") != 0) return 2;
+#if HAVE_LSTAT
+ if (rename ("conftest.f", "conftest.lnk/") == 0) return 3;
+#endif
+ ])],
[gl_cv_func_rename_slash_dst_works=yes],
[gl_cv_func_rename_slash_dst_works=no],
dnl When crosscompiling, assume rename is broken.
[gl_cv_func_rename_slash_dst_works="guessing no"])
- rm -rf conftest.f conftest.f1
+ rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2 conftest.lnk
])
if test "x$gl_cv_func_rename_slash_dst_works" != xyes; then
AC_LIBOBJ([rename])
REPLACE_RENAME=1
AC_DEFINE([RENAME_TRAILING_SLASH_DEST_BUG], [1],
[Define if rename does not correctly handle slashes on the destination
- argument, such as on Solaris 10.])
+ argument, such as on Solaris 10 or NetBSD 1.6.])
fi
dnl SunOS 4.1.1_U1 mistakenly forbids rename("dir/","name").
dnl Solaris 9 mistakenly allows rename("file/","name").
+ dnl FreeBSD 7.2 mistakenly allows rename("link-to-file/","name").
dnl These bugs require stripping trailing slash to avoid corrupting
dnl symlinks with a trailing slash.
AC_CACHE_CHECK([whether rename honors trailing slash on source],
[gl_cv_func_rename_slash_src_works],
- [rm -rf conftest.f conftest.d1 conftest.d2
+ [rm -rf conftest.f conftest.d1 conftest.d2 conftest.lnk
touch conftest.f && mkdir conftest.d1 ||
AC_MSG_ERROR([cannot create temporary files])
+ # Assume that if we have lstat, we can also check symlinks.
+ if test $ac_cv_func_lstat = yes; then
+ ln -s conftest.f conftest.lnk
+ fi
AC_RUN_IFELSE([AC_LANG_PROGRAM([[
# include <stdio.h>
# include <stdlib.h>
]], [if (rename ("conftest.f/", "conftest.d2") == 0) return 1;
- if (rename ("conftest.d1/", "conftest.d2") != 0) return 2;])],
+ if (rename ("conftest.d1/", "conftest.d2") != 0) return 2;
+#if HAVE_LSTAT
+ if (rename ("conftest.lnk/", "conftest.f") == 0) return 3;
+#endif
+ ])],
[gl_cv_func_rename_slash_src_works=yes],
[gl_cv_func_rename_slash_src_works=no],
dnl When crosscompiling, assume rename is broken.
[gl_cv_func_rename_slash_src_works="guessing no"])
- rm -rf conftest.f conftest.d1 conftest.d2
+ rm -rf conftest.f conftest.d1 conftest.d2 conftest.lnk
])
if test "x$gl_cv_func_rename_slash_src_works" != xyes; then
AC_LIBOBJ([rename])
argument, such as on Solaris 9 or cygwin 1.5.])
fi
- AC_CACHE_CHECK([whether rename is broken when the destination exists],
- [gl_cv_func_rename_dest_exists_bug],
- [case "$host_os" in
- mingw*) gl_cv_func_rename_dest_exists_bug=yes ;;
- *) gl_cv_func_rename_dest_exists_bug=no ;;
- esac
+ dnl NetBSD 1.6 and cygwin 1.5.x mistakenly reduce hard link count
+ dnl on rename("h1","h2").
+ dnl This bug requires stat'ting targets prior to attempting rename.
+ AC_CACHE_CHECK([whether rename manages hard links correctly],
+ [gl_cv_func_rename_link_works],
+ [rm -rf conftest.f conftest.f1
+ if touch conftest.f && ln conftest.f conftest.f1 &&
+ set x `ls -i conftest.f conftest.f1` && test "$2" = "$4"; then
+ AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+# include <stdio.h>
+# include <stdlib.h>
+# include <unistd.h>
+]], [if (rename ("conftest.f", "conftest.f1")) return 1;
+ if (unlink ("conftest.f1")) return 2;
+ if (rename ("conftest.f", "conftest.f")) return 3;
+ if (rename ("conftest.f1", "conftest.f1") == 0) return 4;])],
+ [gl_cv_func_rename_link_works=yes],
+ [gl_cv_func_rename_link_works=no],
+ dnl When crosscompiling, assume rename is broken.
+ [gl_cv_func_rename_link_works="guessing no"])
+ else
+ gl_cv_func_rename_link_works="guessing no"
+ fi
+ rm -rf conftest.f conftest.f1
+ ])
+ if test "x$gl_cv_func_rename_link_works" != xyes; then
+ AC_LIBOBJ([rename])
+ REPLACE_RENAME=1
+ AC_DEFINE([RENAME_HARD_LINK_BUG], [1],
+ [Define if rename fails to leave hard links alone, as on NetBSD 1.6
+ or Cygwin 1.5.])
+ fi
+
+ dnl Cygwin 1.5.x mistakenly allows rename("dir","file").
+ dnl mingw mistakenly forbids rename("dir1","dir2").
+ dnl These bugs require stripping trailing slash to avoid corrupting
+ dnl symlinks with a trailing slash.
+ AC_CACHE_CHECK([whether rename manages existing destinations correctly],
+ [gl_cv_func_rename_dest_works],
+ [rm -rf conftest.f conftest.d1 conftest.d2
+ touch conftest.f && mkdir conftest.d1 conftest.d2 ||
+ AC_MSG_ERROR([cannot create temporary files])
+ AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+# include <stdio.h>
+# include <stdlib.h>
+]], [if (rename ("conftest.d1", "conftest.d2") != 0) return 1;
+ if (rename ("conftest.d2", "conftest.f") == 0) return 2;])],
+ [gl_cv_func_rename_dest_works=yes],
+ [gl_cv_func_rename_dest_works=no],
+ dnl When crosscompiling, assume rename is broken.
+ [gl_cv_func_rename_dest_works="guessing no"])
+ rm -rf conftest.f conftest.d1 conftest.d2
])
- if test $gl_cv_func_rename_dest_exists_bug = yes; then
+ if test "x$gl_cv_func_rename_dest_works" != xyes; then
AC_LIBOBJ([rename])
REPLACE_RENAME=1
AC_DEFINE([RENAME_DEST_EXISTS_BUG], [1],
[Define if rename does not work when the destination file exists,
- as on Windows.])
+ as on Cygwin 1.5 or Windows.])
fi
])
projects / gnulib.git / blobdiff