Use dpkg-buildflags in build process

This is to use hardening options for the libraries and programs.
Refer to http://wiki.debian.org/Hardening for more information.

diff --git a/debian/rules b/debian/rules
index e5d60be..18893f2 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -15,26 +15,22 @@
 DEB_HOST_GNU_TYPE   ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
 DEB_BUILD_GNU_TYPE  ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
 
-
-CFLAGS = -Wall -g
-
-ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
-       CFLAGS += -O0
-else
-       CFLAGS += -O2
-endif
+CPPFLAGS:=$(shell dpkg-buildflags --get CPPFLAGS)
+CFLAGS:=$(shell dpkg-buildflags --get CFLAGS) $(CPPFLAGS)
+CXXFLAGS:=$(shell dpkg-buildflags --get CXXFLAGS) $(CPPFLAGS)
+LDFLAGS:=$(shell dpkg-buildflags --get LDFLAGS)
 
 config.status: configure
        dh_testdir
        # Add here commands to configure the package.
-ifneq "$(wildcard /usr/share/misc/config.sub)" ""
-       cp -f /usr/share/misc/config.sub config.sub
-endif
-ifneq "$(wildcard /usr/share/misc/config.guess)" ""
-       cp -f /usr/share/misc/config.guess config.guess
-endif
-       ./configure --host=$(DEB_HOST_GNU_TYPE) --build=$(DEB_BUILD_GNU_TYPE) --prefix=/usr --sysconfdir=/etc --with-yaz=/usr/bin --mandir=\$${prefix}/share/man --infodir=\$${prefix}/share/info CFLAGS="$(CFLAGS)" LDFLAGS="-Wl,-z,defs"
-
+       CPPFLAGS="$(CPPFLAGS)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" \
+               LDFLAGS="$(LDFLAGS)" \
+               ./configure --host=$(DEB_HOST_GNU_TYPE) \
+               --build=$(DEB_BUILD_GNU_TYPE) \
+               --mandir=\$${prefix}/share/man \
+               --infodir=\$${prefix}/share/info \
+               --with-yaz=/usr/bin \
+               --sysconfdir=/etc --prefix=/usr
 
 build: build-stamp