From: Ruben Kerkhof <ruben@rubenkerkhof.com>
Date: Fri, 2 Jan 2015 18:28:14 +0000 (+0100)
Subject: Make executables position-independent
X-Git-Tag: rec-3.7.0-rc1~56^2~1^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F2036%2Fhead;p=thirdparty%2Fpdns.git

Make executables position-independent

Pass -pie to the linker

before:
ruben@yourmomma: pdns (master %=)$ checksec --file pdns/pdns_server
RELRO           STACK CANARY      NX            PIE             RPATH      RUNPATH      FILE
Full RELRO     Canary found     NX enabled   No PIE         No RPATH   No RUNPATH   pdns/pdns_server
ruben@yourmomma: pdns (master %=)$ checksec --file pdns/pdns_control
RELRO           STACK CANARY      NX            PIE             RPATH      RUNPATH      FILE
Full RELRO     Canary found     NX enabled   No PIE         No RPATH   No RUNPATH   pdns/pdns_control

after:
ruben@yourmomma: pdns (master *%=)$ checksec --file pdns/pdns_control
RELRO           STACK CANARY      NX            PIE             RPATH      RUNPATH      FILE
Full RELRO     Canary found     NX enabled   PIE enabled    No RPATH   No RUNPATH   pdns/pdns_control
ruben@yourmomma: pdns (master *%=)$ checksec --file pdns/pdns_server
RELRO           STACK CANARY      NX            PIE             RPATH      RUNPATH      FILE
Full RELRO     Canary found     NX enabled   PIE enabled    No RPATH   No RUNPATH   pdns/pdns_server
---

diff --git a/configure.ac b/configure.ac
index d43b6af426..7f684d31b0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -320,7 +320,7 @@ done
 
 CFLAGS="$PIE_CFLAGS $CFLAGS"
 CXXFLAGS="$PIE_CFLAGS $CXXFLAGS"
-LDFLAGS="$RELRO_LDFLAGS $LDFLAGS"
+LDFLAGS="$PIE_LDFLAGS $RELRO_LDFLAGS $LDFLAGS"
 
 AC_SUBST(LIBS)