Add WITH_ZCHUNK flag so LRO_SUPPORTS_CACHEDIR is set in librepo

Signed-off-by: Jonathan Dieter <jdieter@gmail.com>

libdnf-0.35-fix-zchunk.patch

@@ -0,0 +1,25 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 16b63308..c69026d1 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -30,6 +30,7 @@ option(WITH_BINDINGS "Enables python/SWIG bindings" ON)
+ option(WITH_GTKDOC "Enables libdnf GTK-Doc HTML documentation" ON)
+ option(WITH_HTML "Enables hawkey HTML generation" ON)
+ option(WITH_MAN "Enables hawkey man page generation" ON)
++option(WITH_ZCHUNK "Build with zchunk support" ON)
+ option(ENABLE_RHSM_SUPPORT "Build with Red Hat Subscription Manager support?" OFF)
+ option(ENABLE_SOLV_URPMREORDER "Build with support for URPM-like solution reordering?" OFF)
+ 
+@@ -66,6 +67,12 @@ pkg_check_modules(SQLite3 REQUIRED sqlite3)
+ # always enable linking with libdnf utils
+ include_directories(${CMAKE_SOURCE_DIR} libdnf/utils/)
+ 
++if (WITH_ZCHUNK)
++    pkg_check_modules(ZCHUNKLIB zck>=0.9.11 REQUIRED)
++    set (CMAKE_CXX_FLAGS          "${CMAKE_CXX_FLAGS} -DWITH_ZCHUNK")
++    set (CMAKE_CXX_FLAGS_DEBUG    "${CMAKE_CXX_FLAGS_DEBUG} -DWITH_ZCHUNK")
++endif ()
++
+ if(ENABLE_RHSM_SUPPORT)
+     pkg_check_modules(RHSM REQUIRED librhsm>=0.0.3)
+     include_directories(${RHSM_INCLUDE_DIRS})

libdnf.spec

@@ -32,6 +32,12 @@
 %bcond_with rhsm
 %endif
 
+%if 0%{?rhel}
+%bcond_with zchunk
+%else
+%bcond_without zchunk
+%endif
+
 %global _cmake_opts \\\
     -DENABLE_RHSM_SUPPORT=%{?with_rhsm:ON}%{!?with_rhsm:OFF} \\\
     %{nil}
@@ -181,14 +187,14 @@ mkdir build-py3
 %build
 %if %{with python2}
 pushd build-py2
-  %cmake -DPYTHON_DESIRED:FILEPATH=%{__python2} -DWITH_MAN=OFF ../ %{!?with_valgrind:-DDISABLE_VALGRIND=1} %{_cmake_opts}
+  %cmake -DPYTHON_DESIRED:FILEPATH=%{__python2} -DWITH_MAN=OFF ../ %{?with_zchunk:-DWITH_ZCHUNK=ON} %{!?with_valgrind:-DDISABLE_VALGRIND=1} %{_cmake_opts}
   %make_build
 popd
 %endif # with python2
 
 %if %{with python3}
 pushd build-py3
-  %cmake -DPYTHON_DESIRED:FILEPATH=%{__python3} -DWITH_GIR=0 -DWITH_MAN=0 -Dgtkdoc=0 ../ %{!?with_valgrind:-DDISABLE_VALGRIND=1} %{_cmake_opts}
+  %cmake -DPYTHON_DESIRED:FILEPATH=%{__python3} -DWITH_GIR=0 -DWITH_MAN=0 -Dgtkdoc=0 ../ %{?with_zchunk:-DWITH_ZCHUNK=ON} %{!?with_valgrind:-DDISABLE_VALGRIND=1} %{_cmake_opts}
   %make_build
 popd
 %endif
@@ -271,6 +277,9 @@ popd
 %endif
 
 %changelog
+* Sat Sep 14 2019 Jonathan Dieter <jdieter@gmail.com> - 0.35.3-5
+- Set LRO_CACHEDIR so zchunk works again
+
 * Wed Sep 11 2019 Jaroslav Mracek <jmracek@redhat.com> - 0.35.3-4
 - Backport patch to fix reinstalling packages with a different buildtime - part II