[CMake] [RFC] cmake analog to AC_SEARCH_LIBS

[Stewart, Robert]

Игорь Пашев wrote:
>
> Hi, all. I'm using this macro to get AC_SEARCH_LIBS (from GNU
> autoconf) functionality with CMake.
>
> First of all, this macro searhes the function on libc, then,
> if not found, in the given libraries. It sets two variables:
> 1) boolean if function  found
> 2) string - in which library (may be empty).
>
> I'd like this macro to be in standard cmake set.

Regardless of anything else in your proposal, why the two result
variables?  It seems to me that setting the string when found,
and clearing it when not, serves both purposes.  When the string
is empty, the function wasn't found.

> MACRO (CMAKE_SEARCH_LIBS v_func v_lib func)

(I don't know what the "v_" prefix means, but I presume that those
arguments are the outputs, so perhaps "v_" means "supply the name
of a variable to set.")  With my variation, the interface would
work like the following:

CMAKE_SEARCH_LIBS(library my_function)
IF(library)
   # found my_function's library
ENDIF()


_____
Rob Stewart
Software Engineer
Dev Tools & Components
Susquehanna International Group, LLP

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