Make FORTH optional for various loaders.

[howard0su_gmail.com]

I tried to split the patch from LUA import.

[rpaulo]

Did you make sure src.opts.mk was included early in every file you changed? If yes, it looks ok.

sys/boot/arm/uboot/Makefile

159–161

Extra empty line.

sys/boot/mips/beri/loader/Makefile

131

Extra empty line.

[imp]

Looks good. Still a lot of repeated code though :( You up for some deduplication?

If not, this is fine as it is, modulo Rui's comments.

sys/boot/sparc64/loader/Makefile

99–103

These are replicated in all the Makefiles.
Any chance they could all move into forth/Makefile.inc whose contents are protected by

.if ${MK_FORTH} != "no"
.endif

????

[howard0su_gmail.com]

In D4558#96283, @imp wrote:

Looks good. Still a lot of repeated code though :( You up for some deduplication?

If not, this is fine as it is, modulo Rui's comments.

The changes here looks like all duplication inside MK_FORTH. but other files like arm, pc98 contains different code inside MK_FORTH code block. I feel it is not worth to make even bigger change to save #if #endif here.

For you reference:
pc98/loader/Makefile

.if ${MK_FORTH} != "no"
.PATH: ${.CURDIR}/../../forth
.include "${.CURDIR}/../../forth/Makefile.inc"

FILES+= ${.CURDIR}/../../i386/loader/loader.rc menu.rc
.endif

[howard0su_gmail.com]

In D4558#96283, @imp wrote:

Looks good. Still a lot of repeated code though :( You up for some deduplication?

If not, this is fine as it is, modulo Rui's comments.

The changes here looks like all duplication inside MK_FORTH. but other files like arm, pc98 contains different code inside MK_FORTH code block. I feel it is not worth to make even bigger change to save #if #endif here.

For you reference:
pc98/loader/Makefile

.if ${MK_FORTH} != "no"
.PATH: ${.CURDIR}/../../forth
.include "${.CURDIR}/../../forth/Makefile.inc"

FILES+= ${.CURDIR}/../../i386/loader/loader.rc menu.rc
.endif

In D4558#96264, @rpaulo wrote:

Did you make sure src.opts.mk was included early in every file you changed? If yes, it looks ok.

[howard0su_gmail.com]

rebase to -Current

[howard0su_gmail.com]

All Makefile changed in this change includes src.opts.mk in the beginning of files.