问题描述：在UVM验证过程中，出现以下问题。

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsnew.so: undefined reference to `snpsGroupGetActive'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsnew.so: undefined reference to `miHeapProf_init'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsucli.so: undefined reference to `printIclBeginMarker'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsnew.so: undefined reference to `snpsCallocFunc'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsucli.so: undefined reference to `executeTclProc'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsnew.so: undefined reference to `snpsCheckMallocFromGroupFunc'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsucli.so: undefined reference to `waitForUserInput'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsucli.so: undefined reference to `storeSimLogFileHandle'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsnew.so: undefined reference to `snpsSetOutOfMemoryRoutine'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsucli.so: undefined reference to `registerPreRestartFunc'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsucli.so: undefined reference to `initNativeUcli'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsnew.so: undefined reference to `snpsCheckReallocFunc'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsnew.so: undefined reference to `snpsNamedAllocateGroup'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsucli.so: undefined reference to `printIclEndMarker'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsnew.so: undefined reference to `snpsCallocFromGroup'

/XXX/synopsys/vcs_2016.06/linux/lib/libvcsnew.so: undefined reference to `snpsSetSmallCaching'

解决方法：在Makefile脚本文件中，明确GCC、G++的版本。