preprocessor

[Shawn Riordan]

If I wanted my code to have a custom preprocessor definition, how do I pass that on the emcc commandline?

Lets say I want my C++ code to have something like:

#ifdef FOO

    printf("foo");

#endif

how do I set the value of FOO when I run emcc?

[Shawn Riordan]

Would it be "-D"?

As in, to enable foo:

em++ -D FOO=1

to disable foo

em++ -D FOO=0

?

[Shawn Riordan]

BTW, this seems to be correct.