Debian: adjusted dpkg-buildflags to include "pie" feature.
Inspired by:
https://lintian.debian.org/tags/hardening-no-pie.html
diff --git a/debian/nginx-module.rules.in b/debian/nginx-module.rules.in
index 73538f7..f0ab393 100755
--- a/debian/nginx-module.rules.in
+++ b/debian/nginx-module.rules.in
@@ -1,9 +1,9 @@
#!/usr/bin/make -f
#export DH_VERBOSE=1
-export DEB_BUILD_MAINT_OPTIONS=hardening=+all,-pie
-export DEB_CFLAGS_MAINT_APPEND=-Wp,-D_FORTIFY_SOURCE=2
-DPKG_EXPORT_BUILDFLAGS = 1
+export DEB_BUILD_MAINT_OPTIONS=hardening=+all
+export DEB_CFLAGS_MAINT_APPEND=-Wp,-D_FORTIFY_SOURCE=2 -fPIC
+DPKG_EXPORT_BUILDFLAGS = 1
include /usr/share/dpkg/buildflags.mk
BUILDDIR_nginx = $(CURDIR)/debian/build-nginx
diff --git a/debian/nginx.rules.in b/debian/nginx.rules.in
index d08d32b..16f6737 100755
--- a/debian/nginx.rules.in
+++ b/debian/nginx.rules.in
@@ -1,7 +1,7 @@
#!/usr/bin/make -f
#export DH_VERBOSE=1
-export DEB_BUILD_MAINT_OPTIONS=hardening=+all,-pie
+export DEB_BUILD_MAINT_OPTIONS=hardening=+all
export DEB_CFLAGS_MAINT_APPEND=-Wp,-D_FORTIFY_SOURCE=2 -fPIC
export DEB_LDFLAGS_MAINT_APPEND=-Wl,--as-needed -pie
DPKG_EXPORT_BUILDFLAGS = 1