Consult the warrior Omnet4.4 installation problem, I am using a virtual machine installation, operating system, Ubuntu12.10 Omnet latest version 4.4, run make appear the following error:
Creating Shared library:/home/ruan/omnetpp - 4.4/lib/GCC/libopptkenv. So
Make [2] : brigade directory `/home/ruan/omnetpp - 4.4/SRC/tkenv '
CD/home/ruan/omnetpp - 4.4/SRC/envir & amp; & Make opp_run_executable
Make [2] : if the directory `/home/ruan/omnetpp - 4.4/SRC/envir '
Creating the executable:/home/ruan/omnetpp - 4.4/out/GCC - release/SRC/envir/opp_run_release
/home/ruan/omnetpp - 4.4/lib/GCC/libopptkenv. So: undefined reference to ` deflateEnd '
/home/ruan/omnetpp - 4.4/lib/GCC/libopptkenv. So: undefined reference to ` crc32 '
/home/ruan/omnetpp - 4.4/lib/GCC/libopptkenv. So: undefined reference to ` inflate '
/home/ruan/omnetpp - 4.4/lib/GCC/libopptkenv. So: undefined reference to ` inflateInit_ '
/home/ruan/omnetpp - 4.4/lib/GCC/libopptkenv. So: undefined reference to ` inflateEnd '
Collect2: error: ld returned 1 exit status
Make [2], [* * */home/ruan/omnetpp - 4.4/out/GCC - release/SRC/envir/opp_run_release] Error 1
Make [2] : brigade directory `/home/ruan/omnetpp - 4.4/SRC/envir '
Make [1] : * * * (base) Error 2
Make [1] : brigade directory `/home/ruan/omnetpp - 4.4 '
Make: * * * [allmodes] Error 2

Don't know why appear undefined variable, request the best help, thank you!