Compilation error in Fedora 31

[akurov]

Hi,

I tried to compile xrootd-cmstfc under Fedora 31 but compilation failed with this error

• make VERBOSE=1 -j4
  /usr/bin/cmake -S/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2 -B/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2 --check-build-system CMakeFiles/Makefile.cmake 0
  /usr/bin/cmake -E cmake_progress_start /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/CMakeFiles /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/CMakeFiles/progress.marks
  make -f CMakeFiles/Makefile2 all
  make[1]: Entering directory '/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2'
  make -f CMakeFiles/XrdCmsTfc.dir/build.make CMakeFiles/XrdCmsTfc.dir/depend
  make[2]: Entering directory '/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2'
  cd /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2 && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2 /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2 /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2 /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2 /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/CMakeFiles/XrdCmsTfc.dir/DependInfo.cmake --color=
  Dependee "/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/CMakeFiles/XrdCmsTfc.dir/DependInfo.cmake" is newer than depender "/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/CMakeFiles/XrdCmsTfc.dir/depend.internal".
  Dependee "/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/CMakeFiles/CMakeDirectoryInformation.cmake" is newer than depender "/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/CMakeFiles/XrdCmsTfc.dir/depend.internal".
  Scanning dependencies of target XrdCmsTfc
  make[2]: Leaving directory '/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2'
  make -f CMakeFiles/XrdCmsTfc.dir/build.make CMakeFiles/XrdCmsTfc.dir/build
  make[2]: Entering directory '/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2'
  [ 50%] Building CXX object CMakeFiles/XrdCmsTfc.dir/src/XrdCmsTfc.cc.o
  /usr/bin/c++ -DXrdCmsTfc_EXPORTS -I/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2 -I/usr/include/xrootd -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -Wall -Werror -O2 -g -DNDEBUG -fPIC -o CMakeFiles/XrdCmsTfc.dir/src/XrdCmsTfc.cc.o -c /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/src/XrdCmsTfc.cc
  /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/src/XrdCmsTfc.cc: In function 'std::string replaceWithRegexp(const int*, int, std::string, std::string)':
  /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/src/XrdCmsTfc.cc:369:19: error: '%i' directive writing between 1 and 10 bytes into a region of size 8 [-Werror=format-overflow=]
  369 | sprintf(buffer, "%i", i);
  | ^~
  /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/src/XrdCmsTfc.cc:369:18: note: directive argument in the range [1, 1073741824]
  369 | sprintf(buffer, "%i", i);
  | ^~~~
  In file included from /usr/include/stdio.h:867,
  from /usr/include/c++/9/cstdio:42,
  from /usr/include/c++/9/ext/string_conversions.h:43,
  from /usr/include/c++/9/bits/basic_string.h:6493,
  from /usr/include/c++/9/string:55,
  from /builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2/src/XrdCmsTfc.cc:11:
  /usr/include/bits/stdio2.h:36:34: note: '__builtin___sprintf_chk' output between 2 and 11 bytes into a destination of size 8
  36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
  | ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  37 | __bos (__s), __fmt, __va_arg_pack ());
  | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  cc1plus: all warnings being treated as errors
  make[2]: *** [CMakeFiles/XrdCmsTfc.dir/build.make:86: CMakeFiles/XrdCmsTfc.dir/src/XrdCmsTfc.cc.o] Error 1
  make[2]: Leaving directory '/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2'
  make[1]: Leaving directory '/builddir/build/BUILD/xrootd-cmstfc-1.5.2/xrootd-cmstfc-1.5.2'
  make[1]: *** [CMakeFiles/Makefile2:99: CMakeFiles/XrdCmsTfc.dir/all] Error 2
  make: *** [Makefile:153: all] Error 2
  error: Bad exit status from /var/tmp/rpm-tmp.jzqV4u (%build)