OSX-related CMakeLists maintenance (#1750)
OSX-related CMakeLists maintenance (#1750)

Disable release binary stripping on OSX: The linker of OSX does not
support `-s` for link-time stripping. (The option does not cause an
error but clutters build output with warnings.)

No OSX-dependent LTO flags: LTO is disabled on OSX.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
dbatyai/jerryscript,robertsipka/jerryscript,akosthekiss/jerryscript,gabrielschulhof/jerryscript,glistening/jerryscript,jerryscript-project/jerryscript,akosthekiss/jerryscript,akosthekiss/jerryscript,LaszloLango/jerryscript,jerryscript-project/jerryscript,jack60504/jerryscript,martijnthe/jerryscript,zherczeg/jerryscript,jack60504/jerryscript,glistening/jerryscript,dbatyai/jerryscript,dbatyai/jerryscript,dbatyai/jerryscript,yichoi/jerryscript,robertsipka/jerryscript,jack60504/jerryscript,LaszloLango/jerryscript,yichoi/jerryscript,martijnthe/jerryscript,zherczeg/jerryscript,martijnthe/jerryscript,LaszloLango/jerryscript,glistening/jerryscript,yichoi/jerryscript,gabrielschulhof/jerryscript,zherczeg/jerryscript,bsdelf/jerryscript,bsdelf/jerryscript,glistening/jerryscript,grgustaf/jerryscript,robertsipka/jerryscript,jerryscript-project/jerryscript,bzsolt/jerryscript,grgustaf/jerryscript,gabrielschulhof/jerryscript,bzsolt/jerryscript,jack60504/jerryscript,martijnthe/jerryscript,zherczeg/jerryscript,bsdelf/jerryscript,martijnthe/jerryscript,glistening/jerryscript,yichoi/jerryscript,zherczeg/jerryscript,bzsolt/jerryscript,akosthekiss/jerryscript,bsdelf/jerryscript,dbatyai/jerryscript,gabrielschulhof/jerryscript,grgustaf/jerryscript,LaszloLango/jerryscript,gabrielschulhof/jerryscript,akosthekiss/jerryscript,yichoi/jerryscript,jack60504/jerryscript,bsdelf/jerryscript,robertsipka/jerryscript,jerryscript-project/jerryscript,grgustaf/jerryscript,bsdelf/jerryscript,bzsolt/jerryscript,martijnthe/jerryscript,grgustaf/jerryscript,bzsolt/jerryscript,grgustaf/jerryscript,glistening/jerryscript,robertsipka/jerryscript,robertsipka/jerryscript,jack60504/jerryscript,LaszloLango/jerryscript,jerryscript-project/jerryscript