From f490102454f8330cd67e8f5d1586ab973bf54966 Mon Sep 17 00:00:00 2001
From: Wayne Davison <wayned@samba.org>
Date: Sun, 16 Mar 2008 21:49:19 -0700
Subject: [PATCH] If we're not compiling one or more major options (ACLs,
 xattrs, & iconv), try to turn off unused-parameter compiler warnings.

---
 configure.in | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/configure.in b/configure.in
index 8ad96c27..be737096 100644
--- a/configure.in
+++ b/configure.in
@@ -958,6 +958,17 @@ else
     esac
 fi
 
+if test x"$enable_acl_support" = x"no" -o x"$enable_xattr_support" = x"no" -o x"$enable_iconv" = x"no"; then
+    AC_MSG_CHECKING([whether $CC supports -Wno-unused-parameter])
+    OLD_CFLAGS="$CFLAGS"
+    CFLAGS="$CFLAGS -Wno-unused-parameter"
+    AC_COMPILE_IFELSE([ ], [rsync_warn_flag=yes], [rsync_warn_flag=no])
+    AC_MSG_RESULT([$rsync_warn_flag])
+    if test x"$rsync_warn_flag" = x"no"; then
+	CFLAGS="$OLD_CFLAGS"
+    fi
+fi
+
 AC_CONFIG_FILES([Makefile lib/dummy zlib/dummy popt/dummy shconfig])
 AC_OUTPUT
 
-- 
2.34.1