cmake use carl flag

Former-commit-id: 75ff508329

CMakeLists.txt

@@ -27,6 +27,7 @@ option(STORM_USE_INTELTBB "Sets whether the Intel TBB libraries should be used."
 option(STORM_USE_COTIRE "Sets whether Cotire should be used (for building precompiled headers)." OFF)
 option(LINK_LIBCXXABI "Sets whether libc++abi should be linked." OFF)
 option(USE_LIBCXX "Sets whether the standard library is libc++." OFF)
+option(USE_CARL "Sets whether carl should be included." ON)
 set(GUROBI_ROOT "" CACHE STRING "A hint to the root directory of Gurobi (optional).")
 set(Z3_ROOT "" CACHE STRING "A hint to the root directory of Z3 (optional).")
 set(CUDA_ROOT "" CACHE STRING "The root directory of CUDA.")
@@ -90,6 +91,7 @@ else()
     set(ENABLE_MSAT ON)
 endif()
 
+if(USE_CARL)
     find_package(carl QUIET)
     if(carl_FOUND)
      set(STORM_HAVE_CARL ON)
@@ -99,6 +101,8 @@ find_package(smtrat QUIET)
     if(smtrat_FOUND)
         set(STORM_HAVE_SMTRAT ON)
     endif()
+endif()
+
 
 message(STATUS "StoRM - CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
 message(STATUS "StoRM - CMAKE_BUILD_TYPE (ENV): $ENV{CMAKE_BUILD_TYPE}")