devel/boehm-gc: fix build on sparc64, was lost in r369894

PR:		195848
Submitted by:	kvedulv@kvedulv.de
Approved by:	cpm@fbsd.es (maintainer)


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@374900 35697150-7ecd-e111-bb59-0022644237b5
Convert to USES=autoreconf
Strip binaries


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@374901 35697150-7ecd-e111-bb59-0022644237b5
Update to 2.6

PR:		196009
Submitted by:	frase at frase.id.au (maintainer)


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@374902 35697150-7ecd-e111-bb59-0022644237b5