Since the commit referenced in the URL, all library dependencies have disappeared. I'm pretty sure that isn't right. R/DEPEND should probably be reworked to have the proto packages in DEPEND and the libraries in RDEPEND, and then have DEPEND include RDEPEND. Or use a COMMON_DEPEND intermediate variable.
commit 08090d4 (HEAD, master) Author: Patrice Clement <monsieurp@gentoo.org> Date: Sun Dec 13 22:35:00 2015 +0000 x11-wm/page: List libraries in RDEPEND and the rest in DEPEND. Fixes bug 562632. Package-Manager: portage-2.2.20.1 Signed-off-by: Patrice Clement <monsieurp@gentoo.org> delete mode 100644 x11-wm/page/page-1.9.6-r3.ebuild create mode 100644 x11-wm/page/page-1.9.6-r4.ebuild