While compiling Open vSwitch with visual c++ in
a mingw environment, I have observed that "//" before
options does not work for all the compiler options of
MSVC. Using "-" on the other hand seems to work.
Also, echo the command line options passed to
the MSVC compiler.
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com> Acked-by: Ben Pfaff <blp@nicira.com>