build: Link dnf5-plugins/builddep_plugin to librpm

Building with LDFLAGS='-Wl,-z,defs' shows among others:

$ /usr/bin/c++ -fPIC -O0 -g -Wl,-z,defs -shared  -o builddep_cmd_plugin.so CMakeFiles/builddep_cmd_plugin.dir/builddep.cpp.o CMakeFiles/builddep_cmd_plugin.dir/builddep_cmd_plugin.cpp.o  -Wl,-rpath,/tmp/d/libdnf5-cli:/tmp/d/libdnf5: /usr/lib64/librpmbuild.so ../../libdnf5-cli/libdnf5-cli.so.1 ../../libdnf5/libdnf5.so.1 -ldl -lstdc++ -lfmt -lsmartcols
[...]
/home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:125:(.text+0xba8): undefined reference to `rpmdsInit'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:127:(.text+0xbba): undefined reference to `rpmdsDNEVR'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:126:(.text+0xbe1): undefined reference to `rpmdsNext'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:129:(.text+0xbf6): undefined reference to `rpmdsFree'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:130:(.text+0xc0f): undefined reference to `rpmdsInit'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:132:(.text+0xc21): undefined reference to `rpmdsDNEVR'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:131:(.text+0xc48): undefined reference to `rpmdsNext'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:134:(.text+0xc5d): undefined reference to `rpmdsFree'
/usr/bin/ld: CMakeFiles/builddep_cmd_plugin.dir/builddep.cpp.o: in function `dnf5::BuildDepCommand::add_from_srpm_file(std::set<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >&, std::set<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >&, char const*)':
/home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:141:(.text+0xc9f): undefined reference to `Fopen'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:142:(.text+0xcb6): undefined reference to `Ferror'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:143:(.text+0xd1d): undefined reference to `Fstrerror'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:145:(.text+0xd4d): undefined reference to `Fclose'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:152:(.text+0xd64): undefined reference to `rpmtsCreate'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:153:(.text+0xd79): undefined reference to `rpmtsSetVSFlags'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:154:(.text+0xd95): undefined reference to `rpmReadPackageFile'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:155:(.text+0xda4): undefined reference to `rpmtsFree'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:156:(.text+0xdb0): undefined reference to `Fclose'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:160:(.text+0xddd): undefined reference to `rpmdsNewPool'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:160:(.text+0xde5): undefined reference to `rpmdsInit'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:162:(.text+0xdf7): undefined reference to `rpmdsDNEVR'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:161:(.text+0xe46): undefined reference to `rpmdsNext'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:167:(.text+0xe5b): undefined reference to `rpmdsFree'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:168:(.text+0xe76): undefined reference to `rpmdsNewPool'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:168:(.text+0xe7e): undefined reference to `rpmdsInit'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:170:(.text+0xe90): undefined reference to `rpmdsDNEVR'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:169:(.text+0xeb7): undefined reference to `rpmdsNext'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:172:(.text+0xecc): undefined reference to `rpmdsFree'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:177:(.text+0xf2c): undefined reference to `headerFree'
/usr/bin/ld: CMakeFiles/builddep_cmd_plugin.dir/builddep.cpp.o: in function `dnf5::BuildDepCommand::run()':
/home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:223:(.text+0x1966): undefined reference to `rpmPushMacro'
/usr/bin/ld: /home/test/dnf5/dnf5-plugins/builddep_plugin/builddep.cpp:231:(.text+0x1aae): undefined reference to `rpmPopMacro'

All these functions are explicitly called from builddep.cpp, hence
builddep.cpp must include header files defining the functions and must
link to libraries providing them.

rpmbuild header and library were utilizied. But librpm and librpmio were
completely missing. This patch adds them.

Related to
<rpm-software-management#267>.

dnf5-plugins/builddep_plugin/CMakeLists.txt

@@ -9,6 +9,9 @@ set_target_properties(builddep_cmd_plugin PROPERTIES PREFIX "")
 find_library(RPMBUILD NAMES rpmbuild REQUIRED)
 target_link_libraries(builddep_cmd_plugin PRIVATE ${RPMBUILD})
 
+pkg_check_modules(RPM REQUIRED rpm)
+target_link_libraries(builddep_cmd_plugin PRIVATE ${RPM_LIBRARIES})
+
 target_link_libraries(builddep_cmd_plugin PRIVATE libdnf5 libdnf5-cli)
 target_link_libraries(builddep_cmd_plugin PRIVATE dnf5)
 

dnf5-plugins/builddep_plugin/builddep.cpp

@@ -26,6 +26,11 @@ along with libdnf.  If not, see <https://www.gnu.org/licenses/>.
 #include <libdnf5/rpm/package_query.hpp>
 #include <libdnf5/utils/bgettext/bgettext-mark-domain.h>
 #include <rpm/rpmbuild.h>
+#include <rpm/rpmds.h>
+#include <rpm/rpmio.h>
+#include <rpm/rpmlib.h>
+#include <rpm/rpmmacro.h>
+#include <rpm/rpmts.h>
 
 #include <iostream>