[build] Test for GNU-style PIE support in toolchain and enable

2008-08-13 Paul P Komkoff Jr <i@stingr.net>

	* configure.ac: add a configure flag and autoconf macro, which will
	  determine if your toolchain supports PIE.
	* */Makefile.am: add corresponding CFLAGS and LDFLAGS into
	  appropriate places.

Signed-off-by: Paul Jakma <paul@quagga.net>
diff --git a/zebra/Makefile.am b/zebra/Makefile.am
index 5d8db41..542f36f 100644
--- a/zebra/Makefile.am
+++ b/zebra/Makefile.am
@@ -19,6 +19,9 @@
 otherobj = $(ioctl_method) $(ipforward) $(if_method) $(if_proc) \
 	$(rt_method) $(rtread_method) $(kernel_method) $(other_method)
 
+AM_CFLAGS = $(PICFLAGS)
+AM_LDFLAGS = $(PILDFLAGS)
+
 sbin_PROGRAMS = zebra
 
 noinst_PROGRAMS = testzebra