Created attachment 174999 [details]
Proposed patch (since 422447 revision)

Patch to unbreak games/osgg and improve port.

- Unbreak fetch with using available distfile
- Adapt WRKSRC value
- Remove -f argument near ${RM} value
- Put cd related commands in parenthesis
- Regenerate distinfo file with using `make makesum` command and correct TIMESTAMP value

Note about parenthesis for cd related commands:
-8<--
man make | grep "in parenthesis" -h5 | tail -8
     Makefiles should be written so that the mode of make operation does not
     change their behavior.  For example, any command which needs to use "cd"
     or	"chdir", without side-effect should be put in parenthesis:


	   avoid-chdir-side-effects:
		   @echo Building $@ in	`pwd`
		   @(cd	${.CURDIR} && ${.MAKE} $@)
-->8-

Note about ${RM} value and -f argument:
-8<--
make -C /usr/ports -V RM
/bin/rm -f
-->8-

How TIMESTAMP value was generated (for this case):
make clean extract && find work/* -type f -print0 | xargs -0 stat -f '%m' | sort -u | tail -1 && make clean
or
make clean extract && find work/* -type f -exec stat -f '%m' {} + | sort -u | tail -1 && make clean