X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=acinclude.m4;h=30381d380df8573516bdbd65c73f2aa086c0c48b;hb=4a3564fe85b15fc463b0b579bd12c6e7cf54eb73;hp=fff919af2151e8555306915dc7ac4875827f0971;hpb=a7e9b6a17b2c111f4afa5ae35e3a206483366693;p=chaz%2Ftar

diff --git a/acinclude.m4 b/acinclude.m4
index fff919a..30381d3 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -17,10 +17,36 @@ dnl with GNU tar.  If not, see <http://www.gnu.org/licenses/>.
 AC_DEFUN([TAR_COMPR_PROGRAM],[
  m4_pushdef([tar_compr_define],translit($1,[a-z+-],[A-ZX_])[_PROGRAM])
  m4_pushdef([tar_compr_var],[tar_cv_compressor_]translit($1,[+-],[x_]))
- AC_ARG_WITH([--with-]$1,
+ AC_ARG_WITH($1,
              AC_HELP_STRING([--with-]$1[=PROG],
 	                    [use PROG as ]$1[ compressor program]),
-             [tar_compr_var=${withvar}],
+             [tar_compr_var=${withval}],
 	     [tar_compr_var=m4_if($2,,$1,$2)])
  AC_DEFINE_UNQUOTED(tar_compr_define, "$tar_compr_var",
                     [Define to the program name of ]$1[ compressor program])])
+
+# Provide <attr/xattr.h>, if necessary
+
+AC_DEFUN([TAR_HEADERS_ATTR_XATTR_H],
+[
+  AC_ARG_WITH([xattrs],
+    AS_HELP_STRING([--without-xattrs], [don't use linux extended attributes]),
+    [], [with_xattrs=maybe]
+  )
+
+  AC_CHECK_HEADERS([attr/xattr.h])
+  AM_CONDITIONAL([TAR_COND_XATTR_H],[test "$ac_cv_header_attr_xattr_h" = yes])
+  if test "$ac_cv_header_attr_xattr_h" = yes; then
+    AC_CHECK_FUNCS(getxattr  fgetxattr  lgetxattr \
+                   setxattr  fsetxattr  lsetxattr \
+                   listxattr flistxattr llistxattr,
+        # only when functions are present
+        AC_DEFINE([HAVE_ATTR_XATTR_H], [1],
+                    [define to 1 if we have <attr/xattr.h> header])
+        if test "$with_xattrs" != no; then
+          AC_DEFINE([HAVE_XATTRS],,[Define when we have working linux xattrs.])
+        fi
+    )
+  fi
+])
+		    
\ No newline at end of file