Fix potential avahi-tqt FTBFS on Debian and Ubuntu

(cherry picked from commit 9fe79a3cf8)

debian/lenny/dependencies/avahi-tqt/debian/rules

@@ -8,6 +8,7 @@ include /usr/share/cdbs/1/class/autotools.mk
 export LDFLAGS := $(shell dpkg-buildflags --get LDFLAGS) -Wl,-z,defs -Wl,-O1
 
 DEB_CONFIGURE_EXTRA_FLAGS += \
+		--prefix=/usr \
 		--enable-compat-libdns_sd \
 		--disable-mono --disable-monodoc \
 		--disable-gtk3 \
@@ -19,6 +20,6 @@ DEB_DH_BUILDDEB_ARGS += -- -Z$(shell dpkg-deb --help | grep -q ":.* xz[,.]" \
 post-patches:: debian/stamp-bootstrap
 
 debian/stamp-bootstrap:
-	./autogen.sh
+	./autogen.sh --prefix=/usr
 	rm ./ChangeLog
 	touch debian/stamp-bootstrap

debian/squeeze/dependencies/avahi-tqt/debian/rules

@@ -8,6 +8,7 @@ include /usr/share/cdbs/1/class/autotools.mk
 export LDFLAGS := $(shell dpkg-buildflags --get LDFLAGS) -Wl,-z,defs -Wl,-O1
 
 DEB_CONFIGURE_EXTRA_FLAGS += \
+		--prefix=/usr \
 		--enable-compat-libdns_sd \
 		--disable-mono --disable-monodoc \
 		--disable-gtk3 \
@@ -19,6 +20,6 @@ DEB_DH_BUILDDEB_ARGS += -- -Z$(shell dpkg-deb --help | grep -q ":.* xz[,.]" \
 post-patches:: debian/stamp-bootstrap
 
 debian/stamp-bootstrap:
-	./autogen.sh
+	./autogen.sh --prefix=/usr
 	rm ./ChangeLog
 	touch debian/stamp-bootstrap

ubuntu/maverick/dependencies/avahi-tqt/debian/rules

@@ -8,6 +8,7 @@ include /usr/share/cdbs/1/class/autotools.mk
 export LDFLAGS := $(shell dpkg-buildflags --get LDFLAGS) -Wl,-z,defs -Wl,-O1
 
 DEB_CONFIGURE_EXTRA_FLAGS += \
+		--prefix=/usr \
 		--enable-compat-libdns_sd \
 		--disable-mono --disable-monodoc \
 		--disable-gtk3 \
@@ -19,6 +20,6 @@ DEB_DH_BUILDDEB_ARGS += -- -Z$(shell dpkg-deb --help | grep -q ":.* xz[,.]" \
 post-patches:: debian/stamp-bootstrap
 
 debian/stamp-bootstrap:
-	./autogen.sh
+	./autogen.sh --prefix=/usr
 	rm ./ChangeLog
 	touch debian/stamp-bootstrap