import the original ebuilds

Signed-off-by: Lan Yixun (dlan) <dennis.yxun@gmail.com>
copy from original 4.11 ebuild

Signed-off-by: Lan Yixun (dlan) <dennis.yxun@gmail.com>
bump to EAPI=5

Signed-off-by: Lan Yixun (dlan) <dennis.yxun@gmail.com>
use prune_libtool_files to simplify the logic

Signed-off-by: Lan Yixun (dlan) <dennis.yxun@gmail.com>
fix bug #429526, honor use CFLAGS

Signed-off-by: Lan Yixun (dlan) <dennis.yxun@gmail.com>
copy from original libev-4.04.ebuild

Signed-off-by: Lan Yixun (dlan) <dennis.yxun@gmail.com>
bump to EAPI=5

Signed-off-by: Lan Yixun (dlan) <dennis.yxun@gmail.com>
remove la files

Signed-off-by: Lan Yixun (dlan) <dennis.yxun@gmail.com>
honor cflags, remove -O3 default option

Signed-off-by: Lan Yixun (dlan) <dennis.yxun@gmail.com>
finally, prune old ebuilds and unused patches

Signed-off-by: Lan Yixun (dlan) <dennis.yxun@gmail.com>