From 5079ae924ed473d10b581b12999f937f3219bb13 Mon Sep 17 00:00:00 2001
From: Ruben Kerkhof <ruben@rubenkerkhof.com>
Date: Tue, 27 Jan 2015 19:59:21 +0100
Subject: [PATCH] Check both for -pie and -Wl,pie

Some versions of clang need the latter
Fixes #2125
---
 m4/pdns_pie.m4 | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/m4/pdns_pie.m4 b/m4/pdns_pie.m4
index df5e9c783..9d64e48a7 100644
--- a/m4/pdns_pie.m4
+++ b/m4/pdns_pie.m4
@@ -27,8 +27,16 @@ AC_DEFUN([AC_CC_PIE],[
       *)
       gl_COMPILER_OPTION_IF([-fPIE -DPIE], [
         PIE_CFLAGS="-fPIE -DPIE"
-        PIE_LDFLAGS="-pie"
-      ])
+        gl_COMPILER_OPTION_IF([-pie], [
+          PIE_LDFLAGS="-pie"
+          ], [
+            dnl some versions of clang require -Wl,-pie instead of -pie
+            gl_COMPILER_OPTION_IF(["-Wl,-pie"], [
+              PIE_LDFLAGS="-Wl,-pie"
+            ])
+          ]
+        )]
+      )
     esac
     AC_SUBST([PIE_CFLAGS])
     AC_SUBST([PIE_LDFLAGS])
-- 
2.40.0