The GNU Compiler Collection was updated to version 5.3.1, which brings several fixes and enhancements. The following security issue has been fixed: - Fix C++11 std::random_device short read issue that could lead to predictable randomness. The following non-security issues have been fixed: - Enable frame pointer for TARGET_64BIT_MS_ABI when stack is misaligned. Fixes internal compiler error when building Wine. - Fix a PowerPC specific issue in gcc-go that broke compilation of newer versions of Docker. - Fix HTM built-ins on PowerPC. - Fix libgo certificate lookup. - Suppress deprecated-declarations warnings for inline definitions of deprecated virtual methods. - Revert accidental libffi ABI breakage on aarch64. - On x86_64, set default 32bit code generation to -march=x86-64 rather than -march=i586. - Add experimental File System TS library.