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115 lines
3.9 KiB
Diff
115 lines
3.9 KiB
Diff
>From 7d1d3d38cb66b02c062de77847e3c0ecd842366c Mon Sep 17 00:00:00 2001
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From: Pavel Raiskup <address@hidden>
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Date: Mon, 4 Aug 2014 13:19:49 +0200
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Subject: [PATCH] xattrs: fix bug in configure
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Be careful to define HAVE_XATTRS when not all needed xattr-related
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functions are properly defined either in libc or libattr.
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Reported independently by Denis Excoffier and Dominyk Tille.
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* acinclude.m4 (TAR_HEADERS_ATTR_XATTR_H): Check for each xattr
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function separately. Don't AC_CHECK_LIB (LIBS is filled by
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AC_SEARCH_LIBS when necessary).
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* lib/xattr-at.c: Do not build when HAVE_XATTRS is not defined.
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* src/Makefile.am: The LDADD -lattr was redundant.
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---
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acinclude.m4 | 42 ++++++++++++++----------------------------
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lib/xattr-at.c | 7 +++++++
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src/Makefile.am | 4 ----
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3 files changed, 21 insertions(+), 32 deletions(-)
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diff --git a/acinclude.m4 b/acinclude.m4
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index 3b28b3b..db0bbc7 100644
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--- a/acinclude.m4
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+++ b/acinclude.m4
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@@ -40,37 +40,23 @@ AC_DEFUN([TAR_HEADERS_ATTR_XATTR_H],
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# First check for <sys/xattr.h>
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AC_CHECK_HEADERS([sys/xattr.h])
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AM_CONDITIONAL([TAR_COND_XATTR_H],[test "$ac_cv_header_sys_xattr_h" = yes])
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- AM_CONDITIONAL([TAR_LIB_ATTR],[false])
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- if test "$ac_cv_header_sys_xattr_h" = yes; then
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- AC_CHECK_FUNCS(getxattr fgetxattr lgetxattr \
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- setxattr fsetxattr lsetxattr \
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- listxattr flistxattr llistxattr,
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- # only when functions are present
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- AC_DEFINE([HAVE_SYS_XATTR_H], [1],
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- [define to 1 if we have <sys/xattr.h> header])
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- if test "$with_xattrs" != no; then
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- AC_DEFINE([HAVE_XATTRS],,[Define when we have working linux xattrs.])
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- fi
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- )
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- fi
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-
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- # If <sys/xattr.h> is not found, then check for <attr/xattr.h>
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if test "$ac_cv_header_sys_xattr_h" != yes; then
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AC_CHECK_HEADERS([attr/xattr.h])
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AM_CONDITIONAL([TAR_COND_XATTR_H],[test "$ac_cv_header_attr_xattr_h" = yes])
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- AC_CHECK_LIB([attr],[fgetxattr])
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- AM_CONDITIONAL([TAR_LIB_ATTR],[test "$ac_cv_lib_attr_fgetxattr" = yes])
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- if test "$ac_cv_header_attr_xattr_h" = yes; then
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- AC_CHECK_FUNCS(getxattr fgetxattr lgetxattr \
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- setxattr fsetxattr lsetxattr \
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- listxattr flistxattr llistxattr,
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- # only when functions are present
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- AC_DEFINE([HAVE_ATTR_XATTR_H], [1],
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- [define to 1 if we have <attr/xattr.h> header])
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- if test "$with_xattrs" != no; then
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- AC_DEFINE([HAVE_XATTRS],,[Define when we have working linux xattrs.])
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- fi
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- )
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+ fi
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+
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+ if test "$with_xattrs" != no; then
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+ for i in getxattr fgetxattr lgetxattr \
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+ setxattr fsetxattr lsetxattr \
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+ listxattr flistxattr llistxattr
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+ do
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+ AC_SEARCH_LIBS($i, attr)
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+ eval found=\$ac_cv_search_$i
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+ test "$found" = "no" && break
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+ done
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+
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+ if test "$found" != no; then
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+ AC_DEFINE([HAVE_XATTRS],,[Define when we have working linux xattrs.])
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fi
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fi
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])
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diff --git a/lib/xattr-at.c b/lib/xattr-at.c
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index 443ccae..009bde5 100644
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--- a/lib/xattr-at.c
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+++ b/lib/xattr-at.c
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@@ -18,6 +18,11 @@
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#include <config.h>
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+/* Temporarily don't build. We are unable to build on (probably not only)
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+ darwin due to lack of l*xattr callbacks (XATTR_NOFOLLOW is alternative) and
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+ different function definitions. */
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+#ifdef HAVE_XATTRS
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+
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#include "xattr-at.h"
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#include "openat.h"
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@@ -108,3 +113,5 @@
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#undef AT_FUNC_RESULT
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#undef AT_FUNC_POST_FILE_PARAM_DECLS
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#undef AT_FUNC_POST_FILE_ARGS
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+
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+#endif
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diff --git a/src/Makefile.am b/src/Makefile.am
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index 82b2d46..42daaef 100644
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--- a/src/Makefile.am
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+++ b/src/Makefile.am
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@@ -52,7 +52,3 @@ AM_CFLAGS = $(WARN_CFLAGS) $(WERROR_CFLAGS)
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LDADD = ../lib/libtar.a ../gnu/libgnu.a $(LIBINTL) $(LIBICONV)
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tar_LDADD = $(LIBS) $(LDADD) $(LIB_CLOCK_GETTIME) $(LIB_EACCESS) $(LIB_SELINUX)
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-
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-if TAR_LIB_ATTR
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-tar_LDADD += -lattr
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-endif
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--
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1.9.3
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