[Acl-devel] [PATCH attr] Enable large-file support on systems that do not enable it by default

[Dmitry V. Levin]

Invoke AC_SYS_LARGEFILE to enable large-file support.

This fix doesn't change the library as much as the tools because
the only affected function in libattr is attr_copy_action that calls
attr_parse_attr_conf that in turn calls fopen(ATTR_CONF, "r").

What is the most affected is getfattr, without the fix it just cannot
process large files, e.g.

$ truncate -s2G large-file && getfattr large-file
getfattr: large-file: Value too large for defined data type
---
 configure.ac   | 1 +
 test/attr.test | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/configure.ac b/configure.ac
index 7260ce3..b46afce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,6 +30,7 @@ AC_C_CONST
 AC_TYPE_MODE_T
 AC_FUNC_ALLOCA
 AC_FUNC_GCC_VISIBILITY
+AC_SYS_LARGEFILE
 
 AM_PROG_AR
 LT_INIT
diff --git a/test/attr.test b/test/attr.test
index 9f750b0..6ce2f9b 100644
--- a/test/attr.test
+++ b/test/attr.test
@@ -391,3 +391,9 @@ Test for proper recursion of directory structures with -L 
-P -R
        >
 
        $ rm -R 1
+
+Test for large-file support
+
+       $ dd bs=65536 seek=32768 if=/dev/null of=large-file 2>/dev/null ||:
+       $ sh -c 'if test -f large-file; then getfattr large-file; fi'
+       $ rm large-file

-- 
ldv