enable hardening build flags

[debian/gzip] / debian / rules

diff --git a/debian/rules b/debian/rules
index eb3b6c347babde32221b5d4dfaa91e8503d74918..83be2e58fa31bb77c72140a1f4b5e641883b90be 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -11,10 +11,13 @@ ifneq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
 CONFARGS = --host=$(DEB_HOST_GNU_TYPE)
 endif
 
+CFLAGS = `dpkg-buildflags --get CFLAGS`
+CFLAGS += -Wall
+LDFLAGS = `dpkg-buildflags --get LDFLAGS`
+CPPFLAGS = `dpkg-buildflags --get CPPFLAGS`
+
 ifeq ($(shell dpkg-architecture -qDEB_HOST_ARCH),amd64)
-CFLAGS=-g -O2 -Wall -DUNALIGNED_OK
-else
-CFLAGS=-g -O2 -Wall
+CFLAGS += -DUNALIGNED_OK
 endif
 
 reconf-stamp:
@@ -27,7 +30,7 @@ configure: configure-stamp
 configure-stamp: reconf-stamp
        dh_testdir
        mkdir -p build
-       cd build && ../configure \
+       cd build && CFLAGS="$(CFLAGS)" CPPFLAGS="$(CPPFLAGS)" LDFLAGS="$(LDFLAGS)" ../configure \
                --prefix=/usr --bindir=/bin \
                --infodir=`pwd`/debian/gzip/usr/share/info \
                --mandir=`pwd`/debian/gzip/usr/share/man $(CONFARGS)