build: also try to build a PIE when hardening is not disabled.

diff --git a/configure.ac b/configure.ac
index 1877da2e764800f95171a4486186857530752376..cacb7cfc1302c7425ff496521e644f448fab291b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -101,6 +101,8 @@ if test x"$hardening" != x"no"; then
   AX_CFLAGS_GCC_OPTION([-fstack-protector-all], [LLDP_CFLAGS])
   AX_CFLAGS_GCC_OPTION([-fstack-protector-strong], [LLDP_CFLAGS])
   AX_CFLAGS_GCC_OPTION([-D_FORTIFY_SOURCE=2], [LLDP_CPPFLAGS])
+  AX_CFLAGS_GCC_OPTION([-fPIE], [LLDP_CFLAGS])
+  AX_LDFLAGS_OPTION([-fPIE -pie], [LLDP_LDFLAGS])
 fi
 
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