[cmake-developers] CMAKE_INSTALL_PREFIX vs CMAKE_SYSROOT ?

[Stephen Kelly]

Brad King wrote:

> On 07/04/2013 04:29 AM, Stephen Kelly wrote:
>>> How do install() invocations distinguish which prefix to use?
>> 
>> I think install invokations use CMAKE_HOST_INSTALL_PREFIX for everything
>> if present, and CMAKE_INSTALL_PREFIX otherwise.
> 
> Before I answer the rest of the message I'd like clarification here.
> Do you mean that the install() invocations have
> 
>  install(TARGETS ... DESTINATION ${CMAKE_HOST_INSTALL_PREFIX}/lib)
> 
> ?  Or will install() somehow know whether a build target is for
> host or target architecture?
 
I was thinking of cases where the install DESTINATION is relative:

 install(TARGETS foo ... DESTINATION lib)

If CMAKE_HOST_INSTALL_PREFIX is defined, foo is installed to 

 ${CMAKE_HOST_INSTALL_PREFIX}/lib

otherwise 

 ${CMAKE_INSTALL_PREFIX}/lib

Thanks,

Steve.