Stabilize dev-libs/isl-0.21.
Stable keywords we seek here are: alpha amd64 arm arm64 hppa ia64 m68k ppc ppc64 s390 sh sparc x86
amd64 stable
arm64 stable
x86 stable
ia64/ppc/ppc64 stable
I seem to be running into Bug 650304 when updating and compiling cloog: /usr/lib/gcc/x86_64-pc-linux-gnu/8.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: ./.libs/libcloog-isl.so: undefined reference to `isl_basic_set_drop_constraint'
s390 stable
sh stable
m68k stable
arm stable
sparc stable
hppa stable
alpha stable
I believe this breaks sys-devel/gcc-6.4.0-r1. Please see bug 695370.