[CMake] Troubles with macros and STREQUAL

[Kyle Edwards]

On Fri, 2019-05-31 at 20:43 +0200, Steven Truppe wrote:
> macro(bsAddLibrary lib)
>      # get all WITH_LIB varables
>          message(STATUS "${lib}")
> 
>      get_cmake_property(_variables VARIABLES)
>      foreach(_var ${_variables})
> 
> -->> (${lib} is "WITH_LIB_GLAD" but allways return false =(       
> if(_var STREQUAL ${lib})

Should be:

if(_var STREQUAL lib)

due to how if() expands variable references.

https://cmake.org/cmake/help/v3.14/command/if.html#variable-expansion

Kyle