X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=debian%2Frules;h=b21c8dbf0be1d232c59a8d3bc06db184cb3dd9c2;hb=3cf54a5632d538b4b81f1c418d198614c63a843d;hp=d34bdb3d0f85ef945ccd044a91f9ec71a1a9a7cf;hpb=af9fcde70e8e3889d5834599b0b8ca11e6af90a5;p=sliver-openvswitch.git

diff --git a/debian/rules b/debian/rules
index d34bdb3d0..b21c8dbf0 100755
--- a/debian/rules
+++ b/debian/rules
@@ -29,6 +29,12 @@ else
 CFLAGS += -O2
 endif
 
+# Old versions of dpkg-buildflags do not understand --export=configure.
+# When dpkg-buildflags does not understand an option, it prints its full
+# --help output on stdout, so we have to avoid that here.
+buildflags := $(shell if dpkg-buildflags --export=configure >/dev/null 2>&1; \
+	              then dpkg-buildflags --export=configure; fi)
+
 configure: configure-stamp
 configure-stamp:
 	dh_testdir
@@ -40,7 +46,7 @@ configure-stamp:
 		test -e Makefile || \
 		../configure --prefix=/usr --localstatedir=/var --enable-ssl \
 			--sysconfdir=/etc CFLAGS="$(CFLAGS)" \
-			$(DATAPATH_CONFIGURE_OPTS))
+			$(buildflags) $(DATAPATH_CONFIGURE_OPTS))
 	touch configure-stamp
 
 #Architecture