Finally,I got the dmd command line as below:dmd -c -of.dub/build/application-debug-linux.posix-x86_64-dmd_2067-3E65324D543ED19695028F22620736D3/ezsock.o -debug -g -w -version=Have_ezsock -version=Have_gamelibd -Isource/ -I../gamelibd/source/ -Jviews source/app.d ......
And try to remove dmd option one by one, but the same compilation error exists.
Weird.
