In preparation for ASLR [1] support add WITH_PIE to support building with -fPIE.

This is currently an opt-in build flag. Once ASLR support is ready and stable
it should changed to opt-out and be enabled by default along with ASLR.

Each application Makefile uses opt-out to ensure that ASLR will be enabled by
default in new directories when the system is compiled with PIE/ASLR. [2]

Mark known build failures as NO_PIE for now.

The only known runtime failure was rtld.

[1] http://www.bsdcan.org/2014/schedule/events/452.en.html
Submitted by:		Shawn Webb <lattera@gmail.com>
Discussed between:	des@ and Shawn Webb [2]

6 files changed, 12 insertions, 0 deletions

diff --git a/usr.sbin/ntp/ntp-keygen/Makefile b/usr.sbin/ntp/ntp-keygen/Makefile
index 78308fa..5075350 100644
--- a/usr.sbin/ntp/ntp-keygen/Makefile
+++ b/usr.sbin/ntp/ntp-keygen/Makefile
@@ -21,4 +21,6 @@ DPADD+=	${LIBMD} ${LIBCRYPTO}
 LDADD+=	-lmd -lcrypto
 .endif
 
+NO_PIE=	yes
+
 .include <bsd.prog.mk>
diff --git a/usr.sbin/ntp/ntpd/Makefile b/usr.sbin/ntp/ntpd/Makefile
index 87b2d72..3422ad2 100644
--- a/usr.sbin/ntp/ntpd/Makefile
+++ b/usr.sbin/ntp/ntpd/Makefile
@@ -4,6 +4,8 @@ MAN=
 
 .include <src.opts.mk>
 
+NO_PIE=	yes
+
 .PATH: ${.CURDIR}/../../../contrib/ntp/ntpd
 
 PROG=	ntpd
diff --git a/usr.sbin/ntp/ntpdate/Makefile b/usr.sbin/ntp/ntpdate/Makefile
index f55ec92..ea0fe1e 100644
--- a/usr.sbin/ntp/ntpdate/Makefile
+++ b/usr.sbin/ntp/ntpdate/Makefile
@@ -13,6 +13,8 @@ LDADD=	${LIBNTP} -lm -lmd -lrt
 
 CLEANFILES+= .version version.c
 
+NO_PIE=	yes
+
 version.c: 
 	sh -e ${.CURDIR}/../scripts/mkver ntpdate
 
diff --git a/usr.sbin/ntp/ntpdc/Makefile b/usr.sbin/ntp/ntpdc/Makefile
index 81d2671..d4ea36f 100644
--- a/usr.sbin/ntp/ntpdc/Makefile
+++ b/usr.sbin/ntp/ntpdc/Makefile
@@ -22,6 +22,8 @@ CFLAGS+=	-DHAVE_LIBEDIT -DHAVE_READLINE_READLINE_H \
 
 CLEANFILES+= .version version.c
 
+NO_PIE=	yes
+
 version.c:
 	sh -e ${.CURDIR}/../scripts/mkver ntpdc
 
diff --git a/usr.sbin/ntp/ntpq/Makefile b/usr.sbin/ntp/ntpq/Makefile
index eb42973..7fcdd2b 100644
--- a/usr.sbin/ntp/ntpq/Makefile
+++ b/usr.sbin/ntp/ntpq/Makefile
@@ -24,6 +24,8 @@ CFLAGS+=	-DHAVE_LIBEDIT -DHAVE_READLINE_READLINE_H \
 
 CLEANFILES+= .version version.c
 
+NO_PIE=	yes
+
 version.c:
 	sh -e ${.CURDIR}/../scripts/mkver ntpq
 
diff --git a/usr.sbin/ntp/ntptime/Makefile b/usr.sbin/ntp/ntptime/Makefile
index d3bf7a7..af3f905 100644
--- a/usr.sbin/ntp/ntptime/Makefile
+++ b/usr.sbin/ntp/ntptime/Makefile
@@ -10,4 +10,6 @@ CFLAGS+= -I${.CURDIR}/../../../contrib/ntp/include -I${.CURDIR}/../
 DPADD=	${LIBNTP}
 LDADD=	${LIBNTP}
 
+NO_PIE=	yes
+
 .include <bsd.prog.mk>