From: Ruben Kerkhof <ruben@rubenkerkhof.com>
Date: Tue, 27 Jan 2015 18:59:21 +0000 (+0100)
Subject: Check both for -pie and -Wl,pie
X-Git-Tag: rec-3.7.0-rc2~19^2~8
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5079ae924ed473d10b581b12999f937f3219bb13;p=pdns

Check both for -pie and -Wl,pie

Some versions of clang need the latter
Fixes #2125
---

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])