I just noticed that building DMD~master via

    make -f posix.mak BUILD=debug

currently takes 3.2 secs while building it via

    make -f posix.mak BUILD=release

takes only 3.0 secs on my Ubuntu 18.04 64-bit machine!

Are there more DMD switches other than `BUILD=release` I need to activate to produce the fastest possible compiler binary? Apart for compiling it with LDC, that is.

On Friday, 5 October 2018 at 14:11:22 UTC, Per Nordlöw wrote:
> Are there more DMD switches other than `BUILD=release` I need to activate to produce the fastest possible compiler binary? Apart for compiling it with LDC, that is.

Ahh, that wasn't so hard to find once I looked inside the correct posix.mak. I guess I should do

    make -f posix.mak BUILD=release ENABLE_RELEASE=1

On Friday, 5 October 2018 at 14:11:22 UTC, Per Nordlöw wrote:
> I just noticed that building DMD~master via
>
>     make -f posix.mak BUILD=debug
>
> currently takes 3.2 secs while building it via
>
>     make -f posix.mak BUILD=release
>
> takes only 3.0 secs on my Ubuntu 18.04 64-bit machine!
>
> Are there more DMD switches other than `BUILD=release` I need to activate to produce the fastest possible compiler binary? Apart for compiling it with LDC, that is.

Yeah BUILD more or less only defines in which folder the binaries will be stored as the default BUILD was RELEASE historically and the real release build can take a while and shouldn't be used by default (bad newcomer experience).
We tried to change the default BUILD to debug but it was a mess with the CIs :/

On Friday, 5 October 2018 at 16:57:03 UTC, Seb wrote:
> Yeah BUILD more or less only defines in which folder the binaries will be stored as the default BUILD was RELEASE historically and the real release build can take a while and shouldn't be used by default (bad newcomer experience).
> We tried to change the default BUILD to debug but it was a mess with the CIs :/

Got it. Thanks, Seb.