From 18850c5c889bd48e0caeddf719bcf05c2029b95f Mon Sep 17 00:00:00 2001
From: Glenn Strauss <gstrauss@gluelogic.com>
Date: Fri, 10 Dec 2021 01:35:03 -0500
Subject: [build] check getxattr before attr_get and -lattr

check getxattr before attr_get and -lattr;
do not link with -lattr if getxattr is available from glibc

(modern glibc systems do not require libattr-devel build dependency)
---
 configure.ac | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 698e4191..edc4883c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -489,16 +489,6 @@ AC_MSG_RESULT([$WITH_ATTR])
 
 if test "$WITH_ATTR" != no; then
   have_xattr=no
-  # libattr (linux only?)
-  AC_CHECK_LIB([attr], [attr_get], [
-    AC_CHECK_HEADERS([attr/attributes.h], [
-      ATTR_LIB=-lattr
-      AC_DEFINE([HAVE_XATTR], [1], [libattr])
-      AC_DEFINE([HAVE_ATTR_ATTRIBUTES_H], [1])
-      have_xattr=yes
-    ])
-  ])
-  AC_SUBST([ATTR_LIB])
 
   # Linux getxattr
   AC_CHECK_FUNC([getxattr], [
@@ -518,6 +508,19 @@ if test "$WITH_ATTR" != no; then
     ])
   ])
 
+  # libattr (linux only?)
+  if test "$have_xattr" = no; then
+    AC_CHECK_LIB([attr], [attr_get], [
+      AC_CHECK_HEADERS([attr/attributes.h], [
+        ATTR_LIB=-lattr
+        AC_DEFINE([HAVE_XATTR], [1], [libattr])
+        AC_DEFINE([HAVE_ATTR_ATTRIBUTES_H], [1])
+        have_xattr=yes
+      ])
+    ])
+  fi
+  AC_SUBST([ATTR_LIB])
+
   if test "$have_xattr" = no; then
     AC_MSG_ERROR([no backend found implementing extended attributes])
   fi
-- 
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