From: Tomek Mrugalski <tomasz@isc.org>
Date: Fri, 9 May 2014 23:44:41 +0000 (+0200)
Subject: [3449] Fix in ax_isc_rpath.m4 macro
X-Git-Tag: trac3434_base~38
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=14c3e386f3b713d5c19444b2fdcd811458edaa54;p=thirdparty%2Fkea.git

[3449] Fix in ax_isc_rpath.m4 macro
---

diff --git a/examples/m4/ax_isc_rpath.m4 b/examples/m4/ax_isc_rpath.m4
index ee1e472e14..d540b2cb41 100644
--- a/examples/m4/ax_isc_rpath.m4
+++ b/examples/m4/ax_isc_rpath.m4
@@ -41,8 +41,12 @@ if test x$rpath != xno; then
             ISC_RPATH_FLAG=-Wl,-R
         ],[ AC_MSG_RESULT(no)
             AC_MSG_CHECKING([whether -R flag is available in linker])
-            CXXFLAGS="$CXXFLAGS_SAVED -R"
-            CCFLAGS="$CCFLAGS_SAVED -R"
+
+	    # Apple clang 5.1 is now considers unknown parameters passed to linker (ld) as errors.
+	    # However, the same unknown parameters passed to compiler (g++ ) are merely threated
+	    # as warnings. To make sure that we pick those up, is to use -Werror.
+            CXXFLAGS="$CXXFLAGS_SAVED -Werror -R"
+            CCFLAGS="$CCFLAGS_SAVED -Werror -R"
         AC_TRY_LINK([], [],
             [ AC_MSG_RESULT([yes; note that -R is more sensitive about the position in option arguments])
                 ISC_RPATH_FLAG=-R