use python2 explicitly in build environment

avahi.spec

@@ -1,6 +1,6 @@
 Name:             avahi
 Version:          0.7
-Release:          20
+Release:          21
 Summary:          Avahi is a local network service discovery
 License:          LGPLv2+
 URL:              http://avahi.org
@@ -8,7 +8,7 @@ Source0:          http://avahi.org/download/%{name}-%{version}.tar.gz
 
 Patch1:           avahi-0.6.30-mono-libdir.patch
 Patch6000:        CVE-2017-6519-Drop-legacy-unicast-queries-from-address-not-on-loca.patch
-Patch9000:        huawei-avahi-modify-fuzz-test-err.patch
+Patch9000:        avahi-modify-fuzz-test-err.patch
 
 BuildRequires:    gcc automake libtool python2-dbus python2-libxml2 desktop-file-utils gtk2-devel glib2-devel
 BuildRequires:    libcap-devel expat-devel python2-devel python3-devel gdbm-devel pygobject3-devel pygtk2
@@ -164,7 +164,7 @@ NOCONFIGURE=1 ./autogen.sh
         --enable-shared=yes --enable-static=no  --disable-silent-rules \
         --enable-compat-libdns_sd --enable-compat-howl --disable-qt3 \
         --disable-qt4 --disable-mono \
-	--with-distro=none
+        --with-distro=none PYTHON=%{__python2}
 
 %make_build -k V=1 || make V=1
 
@@ -408,6 +408,12 @@ fi
 %{_mandir}/man8/*
 
 %changelog
+* Sat Feb 29 2020 hexiujun <hexiujun1@huawei.com> - 0.7-21
+- Type:NA
+- ID:NA
+- SUG:NA
+- DESC:use python2 explicitly in build environment
+
 * Tue Feb 25 2020 openEuler Buildteam <buildteam@openeuler.org> - 0.7-20
 - Type:NA
 - ID:NA