Compilation issues

[dcblack]

I am beginning to review your contribution to the Accellera forum, and I applaud you for doing so. In compiling under Clang/LLVM some errors came up:
% make CXX=clang++ SHOW_CMD_LINE= Compiling vcd_header.cpp clang++ -MD -O3 -Wall -march=nocona -fomit-frame-pointer -c vcd_header.cpp -o .vcd_header.o vcd_header.cpp:43:13: warning: unused function 'get_line' [-Wunused-function] string_view get_line(const string_view &str, size_t offset){ ^ vcd_header.cpp:51:13: warning: unused function 'skip_begging_blank' [-Wunused-function] string_view skip_begging_blank(const string_view &s){ ^ 2 warnings generated. Compiling mmap_manager.cpp clang++ -MD -O3 -Wall -march=nocona -fomit-frame-pointer -c mmap_manager.cpp -o .mmap_manager.o mmap_manager.cpp:45:25: error: use of undeclared identifier 'O_LARGEFILE' fd = open(filename, O_LARGEFILE | O_SYNC | (is_writable ? O_RDWR : O_RDONLY)); ^ 1 error generated. Makefile:49: recipe for target '.mmap_manager.o' failed

[yTakatsukasa]

Hi David,
Thank you for sparing your time for reviewing.

I could not reproduce the error with clang-3.4. But I think the latest version should be compiled on your environment and hope it still capable of >2GB VCD on 32bit OS.

Regards,
Yutetsu.