compatibility with boost 1.89.00

Author: aumuell

.gitmodules

@@ -31,4 +31,4 @@
 	url = https://github.com/nlohmann/json.git
 [submodule "src/3rdparty/crow"]
 	path = src/3rdparty/crow
-	url = https://github.com/CrowCpp/Crow.git
+	url = https://github.com/aumuell/crow

cmake/CoviseHelperMacros.cmake

@@ -1159,7 +1159,7 @@ MACRO(COVISE_FIND_CUDA)
 ENDMACRO(COVISE_FIND_CUDA)
 
 MACRO(COVISE_FIND_BOOST)
-   set(BOOST_COMPONENTS chrono program_options system thread filesystem iostreams date_time serialization regex locale)
+   set(BOOST_COMPONENTS chrono program_options thread filesystem iostreams date_time serialization regex locale)
    IF(WIN32)
        #set(BOOST_COMPONENTS ${BOOST_COMPONENTS} zlib)
    ENDIF(WIN32)
@@ -1172,4 +1172,15 @@ MACRO(COVISE_FIND_BOOST)
            message("Did not find boost_atomic")
        endif()
    endif()
+   if (Boost_FOUND)
+       if(Boost_VERSION VERSION_LESS "108900")
+           set(COMPONENTS ${BOOST_COMPONENTS} system)
+           covise_find_package(Boost COMPONENTS ${BOOST_COMPONENTS} QUIET REQUIRED)
+           if (NOT Boost_FOUND)
+               message("Did not find boost_system")
+           endif()
+       else()
+           add_library(Boost::system ALIAS Boost::boost)
+       endif()
+   endif()
 ENDMACRO(COVISE_FIND_BOOST)