Merge pull request #500 from Alok0587/master

To allow build for selective distros from top directory

Author: thaJeztah

deb/Makefile

@@ -36,9 +36,9 @@ RUN?=docker run --rm \
 	$(RUN_FLAGS) \
 	debbuild-$@/$(ARCH)
 
-DEBIAN_VERSIONS := debian-buster
-UBUNTU_VERSIONS := ubuntu-xenial ubuntu-bionic ubuntu-focal
-RASPBIAN_VERSIONS := raspbian-buster
+DEBIAN_VERSIONS ?= debian-buster
+UBUNTU_VERSIONS ?= ubuntu-xenial ubuntu-bionic ubuntu-focal
+RASPBIAN_VERSIONS ?= raspbian-buster
 DISTROS := $(DEBIAN_VERSIONS) $(UBUNTU_VERSIONS) $(RASPBIAN_VERSIONS)
 
 .PHONY: help

rpm/Makefile

@@ -39,9 +39,9 @@ RUN?=docker run --rm \
 	$(RUN_FLAGS) \
 	rpmbuild-$@/$(ARCH) $(RPMBUILD_FLAGS)
 
-FEDORA_RELEASES := fedora-32 fedora-31
-CENTOS_RELEASES := centos-7 centos-8
-RHEL_RELEASES := rhel-7
+FEDORA_RELEASES ?= fedora-32 fedora-31
+CENTOS_RELEASES ?= centos-7 centos-8
+RHEL_RELEASES ?= rhel-7
 DISTROS := $(FEDORA_RELEASES) $(CENTOS_RELEASES) $(RHEL_RELEASES)
 
 .PHONY: help