find_package(Offline) required to use Offline libraries (in ArtModules)

Author: eflumerf

CMakeLists.txt

@@ -31,6 +31,7 @@ cet_set_compiler_flags(DIAGS VIGILANT
 
 # these are minimum required versions, not the actual product versions
 find_package(otsdaq-mu2e 1.02.00 REQUIRED)
+find_package(Offline 11.00.00 REQUIRED)
 
  # XDAQ Extra setup
  include_directories($ENV{XDAQ_ROOT}/include/linux $ENV{XDAQ_ROOT}/include)