Fix the 400.perlbench Makefile to add -fgnu89-inline on Linux

This is necessary both on x86_64 and PPC64 Linux using glibc 2.12 and 2.15. It
is related to the fact that a header file in this test undefs a number of libc
macros exposing the underlying function definitions.


git-svn-id: https://llvm.org/svn/llvm-project/test-suite/trunk@220436 91177308-0d34-0410-b5e6-96231b3b80d8
Fix the 464.h264ref Makefile to add -fsigned-char on PowerPC/Linux

-fsigned-char is necessary on PowerPC/Linux in order to correctly compile this
benchmark.


git-svn-id: https://llvm.org/svn/llvm-project/test-suite/trunk@220438 91177308-0d34-0410-b5e6-96231b3b80d8