[bugfix] linux64 linker

[themancalledjakob]

The gold linker is slowly fading out of existence on some Linux distros (e.g. Void linux).
Compilation therefore fails (unnecessarily).

This is very likely gonna happen for any modern Linux distro.

But even apart from this, I think a better approach would be to only add -fuse-ld=gold if gold exists.

And while we're at it.. use mold, if mold exists.

[ofTheo]

Thanks!! @themancalledjakob

[dimitre]

Thank you @themancalledjakob
I've followed your logic and added other linkers in a different order, in a fork I'm working.
mold, lld, bfd (we can check in shell by invoking ld, but -fuse-ld parameter is bfd) and last of all, gold.

include $(OF_SHARED_MAKEFILES_PATH)/config.linux.common.mk

ifneq (, $(shell command -v mold))
	PLATFORM_LDFLAGS += -fuse-ld=mold
else ifneq (, $(shell command -v lld))
	PLATFORM_LDFLAGS += -fuse-ld=lld
else ifneq (, $(shell command -v ld))
	PLATFORM_LDFLAGS += -fuse-ld=bfd
else ifneq (, $(shell command -v gold))
	PLATFORM_LDFLAGS += -fuse-ld=gold
endif