Build libfuzzer libcxx-static with PIC

r356153 changed default build option of static libcxx to no PIC. We now
need to explicitly specify CMAKE_POSITION_INDEPENDENT_CODE to get PIC
libcxx.

Differential Revision: https://reviews.llvm.org/D65773

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@367943 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed