--- /dev/null
+# https://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.html
+# glibc-2.24 needs linux-3.2 at runtime, except on x86 and amd64.
+# on x86 and amd64, it is glibc-2.26 to require linux-3.2.
+# https://www.sourceware.org/ml/libc-alpha/2017-08/msg00010.html
+
+# we just use a universal glibc-2.24 on all ARCHes for simplicity.
+>=sys-libs/glibc-2.24
--- /dev/null
+# https://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.html
+# glibc-2.24 needs linux-3.2 at runtime, except on x86 and amd64.
+# on x86 and amd64, it is glibc-2.26 to require linux-3.2.
+# https://www.sourceware.org/ml/libc-alpha/2017-08/msg00010.html
+
+# we just use a universal glibc-2.24 on all ARCHes for simplicity.
+<sys-libs/glibc-2.24