Hi list,
I'm not a m4/autotools expert and such i'm a bit stuck with codes below (from "m4/universal.m4")
https://github.com/pure-data/pure-data/blob/master/m4/universal.m4#L68
$1[]_CFLAGS="$[]$1[]_CFLAGS $_pd_universal" $1[]_LDFLAGS="$[]$1[]_LDFLAGS $_pd_universal"
What's the meaning of the "$1[]" and "$[]$1[]" syntaxes?
I guess it is related to macro expansion (to properly obtained ARCH_CFLAGS and ARCH_LDFLAGS), but is that anybody could give me some explanations about that trick?