Attempt to fix GWP-ASan build failure on sanitizer-android. Add -fPIC.
@@ -21,7 +21,7 @@ set(GWP_ASAN_HEADERS
# Ensure that GWP-ASan meets the delegated requirements of some supporting
# allocators. Some supporting allocators (e.g. scudo standalone) cannot use any
# parts of the C++ standard library.
-set(GWP_ASAN_CFLAGS -fno-rtti -fno-exceptions -nostdinc++ -pthread)
+set(GWP_ASAN_CFLAGS -fno-rtti -fno-exceptions -fPIC -nostdinc++ -pthread)
# Remove -stdlib= which is unused when passing -nostdinc++.
string(REGEX REPLACE "-stdlib=[a-zA-Z+]*" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
