Disabling loading of pretty printers in the debugger itself is more
reliable. Before this commit the .gdb_debug_scripts section couldn't be
included in dylibs or rlibs as otherwise there is no way to disable the
section anymore without recompiling the entire standard library.
f16 support for PowerPC has issues in LLVM, therefore we need a small
workaround to prevent LLVM from emitting symbols that don't exist for
PowerPC yet.
It also appears that unused by-value non-immedate issue with gdb applies
to PowerPC targets as well, though I've only tested 64-bit Linux targets.
Signed-off-by: Jens Reidel <adrian@travitia.xyz>
